- For in vitro testing and laboratory use only.
- Not for human or animal consumption.
- Bodily introduction is illegal.
- Handle only by licensed professionals.
- Not a drug, food, or cosmetic.
- Educational use only.
Quick take on NAD+
NAD+ (nicotinamide adenine dinucleotide) isn't a peptide, isn't a drug, and isn't anything synthetic — it's a coenzyme present in every living cell in your body, essential for converting food into energy and for hundreds of other cellular processes. It was discovered in 1906 by British biochemists Arthur Harden and William Young. The reason NAD+ shows up in biohacking circles is that cellular NAD+ levels decline with age — by some estimates, levels in a 60-year-old are roughly half what they were at 30. That decline is thought to contribute to multiple hallmarks of aging, which makes restoring NAD+ one of the most actively studied interventions in longevity medicine.
Mechanism in plain English
NAD+ serves two main functions. First, it's a critical electron carrier in mitochondrial energy production, cycling between NAD+ and NADH as your cells generate ATP. Second, it's the required substrate for sirtuins and PARPs — enzyme families involved in DNA repair, gene expression, and cellular stress response. When NAD+ levels drop, both systems slow down: sirtuins can't regulate metabolic genes properly, DNA damage accumulates, and mitochondrial efficiency declines.
What it's used for
People take it for anti-aging, cognitive function, energy levels, recovery from illness or addiction, and metabolic support. Delivery routes matter enormously:
- IV NAD+ infusions — bypass bioavailability problems but are expensive, time-consuming (2-4 hour drips), and often uncomfortable due to flushing and chest tightness during infusion.
- Subcutaneous NAD+ injections — a practical middle ground.
- Oral precursors (NMN or NR) — the most common form, though their efficiency at actually raising cellular NAD+ is debated.
Upsides and downsides
Main upside — NAD+ is genuinely central to cellular function, and restoring declining levels has a theoretical basis stronger than most longevity interventions. Users frequently report improved energy, mental clarity, better recovery, and reduced "aging friction." Direct IV NAD+ has shown striking results in some clinical settings including addiction recovery programs.
Main downside — the gap between "NAD+ matters" and "supplementing NAD+ extends your life" is enormous, and the clinical data supporting real anti-aging effects in humans remains weak. Human trials on NMN and NR show they raise blood NAD+ levels, but translating that to measurable healthspan or lifespan benefits has been underwhelming so far.
Typical protocols
- IV NAD+: 250-1000 mg per infusion over 2-4 hours, once weekly or in intensive 5-10 day loading protocols.
- Subcutaneous: 50-200 mg daily or several times per week.
- Oral NMN or NR: 250-1000 mg daily.
Ongoing maintenance rather than cyclical dosing is common, though many users cycle to manage cost.
Who should skip it
- Anyone with active cancer — NAD+ supports DNA repair and cell proliferation, and boosting it may support tumor growth in the wrong context.
- Pregnant women.
- Anyone on chemotherapy.
Regulatory status
Not on WADA's prohibited list. Legal as a supplement in most countries; prescription IV protocols are offered through anti-aging clinics and IV therapy providers widely.
In 1906, a British biochemist named Arthur Harden was studying fermentation — how yeast converts sugar into alcohol. He noticed something strange: when he boiled his yeast extract, fermentation stopped even when he added back everything he thought was needed. Some heat-stable, low-molecular-weight substance was essential for life, and nobody knew what it was.
It took nearly 30 more years to figure out. In the 1930s, Otto Warburg identified Harden's mystery substance. It was a small molecule he called coenzyme I — known today as NAD+ (nicotinamide adenine dinucleotide).
Around the same time, researchers in the American South were watching thousands of people die from pellagra — a devastating disease of "the four Ds": dermatitis, diarrhea, dementia, and death. In 1937, Conrad Elvehjem proved that pellagra was caused by deficiency of nicotinic acid (niacin), a precursor to NAD+. Adding niacin to food nearly eliminated pellagra within months. The disease, which had killed an estimated 100,000 Americans, essentially disappeared.
NAD+ turned out to be one of the most important molecules in biology. It's present in every living cell, participates in hundreds of metabolic reactions, and is absolutely essential for mitochondrial energy production, DNA repair, and cellular signaling. Without NAD+, you literally cannot make ATP. You cannot repair DNA damage. You cannot live.
Here's the twist that drives today's massive interest: NAD+ levels drop dramatically with age — roughly 30-50% decline between age 30 and 70 in most tissues. This discovery launched an entire industry of NAD+ "boosting" interventions: IV therapy, oral precursors, topicals, injectables, and everything in between. NAD+ isn't a peptide. It isn't a drug. It's a fundamental molecule of life — but how to best raise it, and whether doing so delivers the benefits proponents claim, is one of the most active research questions in aging biology.
NAD+: what it is and how it works in a nutshell
NAD+ is a dinucleotide — two nucleotides linked together by phosphate groups. The structure: nicotinamide + adenine + two ribose sugars + two phosphate groups. It exists in two forms: NAD+ (the oxidized form, ready to accept electrons) and NADH (the reduced form, carrying electrons). The molecule shuttles between these forms as it participates in biological reactions.
Not a drug, not a peptide. NAD+ is a natural cellular cofactor present in every living cell, produced internally from dietary precursors, used in hundreds of enzymatic reactions simultaneously, and essential for life.
Regulatory status: NAD+ itself isn't approved as a drug. Precursors exist in various regulatory categories:
- Niacin (nicotinic acid) — generally recognized as safe, food-grade
- Niacinamide/Nicotinamide (NAM) — dietary supplement
- Nicotinamide riboside (NR) — sold as supplement (Niagen is the dominant brand)
- Nicotinamide mononucleotide (NMN) — FDA ruled in 2022 that NMN cannot be marketed as a dietary supplement in the US, as it's being developed as a pharmaceutical drug
- IV NAD+ — offered by many wellness clinics, not FDA-approved for any specific indication
NAD+ mechanism of action: what it actually does in the body
NAD+ isn't one thing — it's many things. To understand why boosting it matters, you need to understand what it's being used for inside your cells.
1. Mitochondrial energy production (the big one).
Inside your mitochondria, NAD+ picks up electrons from the breakdown of food molecules and delivers them to the electron transport chain — which then uses those electrons to produce ATP, the universal cellular energy currency. Every step of glycolysis, the TCA cycle, and fatty acid oxidation depends on NAD+. Low NAD+ = low ATP production = cellular energy failure [1].
2. Sirtuin activation (the longevity pathway).
Sirtuins are a family of NAD+-dependent enzymes — they literally cannot function without NAD+. The seven mammalian sirtuins (SIRT1-SIRT7) regulate DNA repair and genome stability, mitochondrial biogenesis and function, metabolic regulation and insulin sensitivity, telomere maintenance, and cellular senescence. When NAD+ declines, sirtuins become progressively less active — one proposed mechanism linking NAD+ decline to aging [2].
3. PARP activation (DNA damage response).
Poly(ADP-ribose) polymerases (PARPs) respond to DNA damage by consuming NAD+ to create PAR polymers that recruit repair machinery. PARP1 alone can consume massive amounts of NAD+ when DNA damage is severe — which is why chronic stress, oxidative damage, and inflammation deplete NAD+ systemically.
4. CD38 and NADase activity.
CD38 is an NAD+-consuming enzyme that becomes more active with aging and inflammation. Rising CD38 activity in aged tissues is one of the primary mechanisms driving age-related NAD+ decline.
Why NAD+ declines with age: decreased biosynthesis (NAMPT enzyme activity drops); increased consumption (CD38, PARPs upregulated with inflammation/damage); NNMT activation (diverts nicotinamide to methylation waste); chronic "inflammaging" drives continuous PARP activation; DNA damage accumulates requiring more NAD+ for repair. Net effect: most tissues have 30-50% less NAD+ at age 70 than at age 30.
How NAD+ gets raised: routes and options
1. NAD+ itself (IV or subcutaneous).
Direct infusion. Doesn't cross cell membranes well — much of administered NAD+ is broken down extracellularly before entering cells. Still produces measurable increases in cellular NAD+ over time. IV infusions at wellness clinics typically 250-1000 mg over several hours.
2. Nicotinamide riboside (NR) — oral.
Converted inside cells to NAD+ via the NRK enzyme pathway. Well-studied in humans. Sold as Niagen. Efficiently raises NAD+ in blood and some tissues. Safety well-established in clinical trials.
3. Nicotinamide mononucleotide (NMN) — oral/sublingual.
One step closer to NAD+ than NR in the biosynthesis pathway. Research enthusiasm has been intense. Unclear if it offers advantages over NR for practical human use. Regulatory issue: FDA ruled in 2022 that NMN cannot be legally sold as a dietary supplement in the US.
4. Niacin / Nicotinamide — oral.
The traditional precursors. Cheap, widely available, safe. Niacin causes flushing; nicotinamide doesn't. Effective at raising NAD+ at adequate doses.
IV NAD+ vs oral precursors — the practical question: IV delivers direct substrate and bypasses digestion; oral provides steadier elevation more physiological in pattern; cost difference is dramatic ($200-600/session IV vs $30-80/month oral); evidence-wise, oral precursors have more clinical trial data while IV is more marketed than studied.
Who uses NAD+ interventions and what for
- Adults over 40 pursuing longevity — probably the largest user group
- People with chronic fatigue or low energy — attracted by the "mitochondrial support" framing
- Athletes and biohackers — for perceived performance and recovery benefits
- People in addiction recovery — some IV NAD+ protocols target substance withdrawal, particularly alcohol and opiates, based on limited evidence
- Patients with neurodegenerative conditions — investigational use in Parkinson's, Alzheimer's, ALS
- Patients with rare genetic conditions involving DNA repair — legitimate medical use. Patients with Cockayne syndrome, xeroderma pigmentosum, and ataxia-telangiectasia have shown meaningful benefit in published case series [3].
- People recovering from COVID-19 or viral illnesses — post-infection fatigue contexts
Realistic expectations based on published evidence:
- Most robust evidence: raising blood NAD+ levels is consistently achievable with NR, NMN, and IV NAD+
- Moderate evidence: improvements in metabolic markers, some measures of mitochondrial function
- Limited evidence: cognitive improvements, athletic performance, muscle function
- Weakest evidence: lifespan extension, reversal of specific age-related diseases, dramatic anti-aging effects
What WON'T happen: dramatic changes in how you feel, look, or perform; reversal of significant aging phenotypes; cure for any disease based on current evidence; effects comparable to what's claimed in marketing materials at most IV wellness clinics.
The honest framing: NAD+ is biologically essential. NAD+ declines with age. Raising NAD+ is reliably achievable. Whether this produces the longevity and health benefits hoped for is still largely an open question. The gap between what's genuinely proven and what's commonly claimed is substantial.
What NAD+ stacks with: common combinations
- NAD+/precursors + Resveratrol or Pterostilbene — the classic "sirtuin activator" combination. Sirtuins require NAD+ to function; these polyphenols theoretically activate them further.
- NAD+/precursors + Metformin — both target metabolic aging through different mechanisms. Common in longevity protocols.
- NAD+/precursors + 5-Amino-1MQ — mechanistically complementary (NAD+ supply + NAD+ preservation via NNMT inhibition). Speculative combination without human trial validation.
- NAD+/precursors + Exercise — exercise raises NAD+ naturally; this may compound the effect
- IV NAD+ + Glutathione + B vitamins — typical "IV wellness" cocktail at clinics
- NAD+/precursors + CoQ10 — both support mitochondrial function, theoretically complementary
NAD+ side effects and risks
IV NAD+ side effects (commonly reported during infusion):
- Chest tightness or pressure — very common, especially at faster infusion rates
- Flushing — common
- Nausea — common, particularly early in infusion
- Headache — common
- Muscle cramps or tremors — some patients
- Anxiety or restlessness — uncommon
- Fatigue — paradoxically, some patients feel fatigued after infusion
Most IV NAD+ side effects are addressed by slowing the infusion rate dramatically (total session times of 3-6 hours are common specifically to minimize adverse effects).
Oral precursor side effects: niacin causes the flush effect — red, warm, tingling skin 10-30 minutes after dose, unpleasant but not dangerous; niacinamide generally well-tolerated but high doses can affect liver enzymes; NR/NMN generally well-tolerated in clinical trials with mild occasional GI effects.
Theoretical long-term concerns worth taking seriously:
- Cancer risk: NAD+ supports cellular energy production, DNA repair, and proliferation — all processes that cancer cells exploit. Whether raising NAD+ accelerates or slows cancer progression is genuinely unclear and likely context-dependent. The 2020 Braidy et al. review specifically flagged "potential risks... including the accumulation of putative toxic metabolites, tumorigenesis and promotion of cellular senescence" [4].
- Methylation system stress: NAD+ metabolism intersects with methylation pathways. Chronic high doses might affect methyl donor balance.
- Senescent cell promotion: some evidence suggests NAD+ can promote proliferation of senescent cells in certain contexts — counterproductive for aging.
- Quality control concerns: research-grade NAD+ and precursors vary significantly in purity
Who should be cautious or avoid:
- Anyone with active or recent history of cancer (discuss with oncologist)
- Pregnant or breastfeeding women (no safety data for supraphysiological supplementation)
- People with severe kidney disease
- Anyone expecting this to be a proven anti-aging intervention rather than a reasonable-but-uncertain experiment
How NAD+ interventions are typically used
IV NAD+ protocols:
- Loading phase: 500-1000 mg daily for 5-10 consecutive days
- Maintenance phase: 500 mg once monthly to once quarterly
- Infusion duration: 3-6 hours to minimize side effects
Oral NR protocols:
- Standard dose: 250-500 mg daily
- Higher dose protocols: up to 1000 mg daily
- Timing: with or without food, morning often preferred
- Cycle: typically continuous, long-term use
Oral niacin/niacinamide:
- Starting dose: 25-100 mg to assess flush tolerance (for niacin)
- Typical dose: 500-1500 mg daily in divided doses
- Medical supervision: recommended for higher doses due to liver considerations
Subcutaneous NAD+: some protocols use subcutaneous injection of smaller doses (10-100 mg) daily or several times weekly. Less established than IV or oral routes. May offer some benefits with less time/cost commitment than IV.
NAD+ vs alternatives: what's different
Among NAD+-raising interventions:
- Oral NR (Niagen) — best-validated oral precursor in human trials, safe, moderately effective, widely available
- Oral NMN — theoretically one step closer to NAD+, FDA has restricted supplement sales in US
- IV NAD+ — most dramatic acute elevation, most expensive, limited trial evidence for claimed benefits
- Oral niacinamide/niacin — cheapest, proven safe, effective at raising NAD+ at sufficient doses
Conceptually different approaches to cellular energy/aging:
- 5-Amino-1MQ — prevents NAD+ depletion rather than adding supply. Complementary mechanism, entirely preclinical in evidence.
- Metformin — different mechanism (AMPK activation), proven diabetes drug, possible longevity benefits
- Exercise — the most validated "anti-aging" intervention, raises NAD+ naturally, produces most of the benefits that other interventions claim
Myths about NAD+
- "IV NAD+ reverses aging and produces dramatic effects you can feel." Most patients who receive IV NAD+ report subtle effects, and many report no clear benefit at all. The marketed language at many wellness clinics dramatically overstates both the evidence and typical patient experience. The actual clinical trial data shows modest biomarker improvements, not dramatic reversals of aging phenotypes.
- "More NAD+ is always better." NAD+ biology is tightly regulated for good reasons. Supraphysiological elevation has theoretical concerns (cancer support, senescent cell promotion, methylation system stress) that aren't addressed by the "more is better" framing common in longevity marketing. The optimal NAD+ levels for different contexts are likely different, and pushing everyone toward maximal levels may not be the right approach.
Sources
- Verdin, E. (2015). NAD+ in aging, metabolism, and neurodegeneration. Science, 350(6265), 1208-1213. — foundational review of NAD+ biology in aging.
- Imai, S., & Guarente, L. (2014). NAD+ and sirtuins in aging and disease. Trends in Cell Biology, 24(8), 464-471. — key review of NAD+-sirtuin axis in aging biology from one of the field's leading research groups.
- Bohr, V. A. (2025). Promising results with NAD supplementation in rare diseases with premature aging and DNA damage. Aging Cell. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12727671/ — recent clinical evidence for NAD supplementation in rare genetic DNA repair disorders.
- Braidy, N., Berg, J., Clement, J., Khorshidi, F., Poljak, A., Jayasena, T., Grant, R., & Sachdev, P. (2020). Role of nicotinamide adenine dinucleotide and related precursors as therapeutic targets for age-related degenerative diseases: rationale, biochemistry, pharmacokinetics, and outcomes. Antioxidants & Redox Signaling, 30(2), 251-294. https://pubmed.ncbi.nlm.nih.gov/31917996/ — comprehensive systematic review of 147 articles on NAD+ therapy benefits and risks.
- Rajman, L., Chwalek, K., & Sinclair, D. A. (2018). Therapeutic potential of NAD-boosting molecules: the in vivo evidence. Cell Metabolism, 27(3), 529-547. — influential review from the Sinclair lab summarizing in vivo evidence for NAD+ boosting.
- Trammell, S. A., Schmidt, M. S., Weidemann, B. J., Redpath, P., Jaksch, F., Dellinger, R. W., Li, Z., Abel, E. D., Migaud, M. E., & Brenner, C. (2016). Nicotinamide riboside is uniquely and orally bioavailable in mice and humans. Nature Communications, 7, 12948. — landmark paper on NR bioavailability in humans.
- Mills, K. F., Yoshida, S., Stein, L. R., Grozio, A., Kubota, S., Sasaki, Y., Redpath, P., Migaud, M. E., Apte, R. S., Uchida, K., Yoshino, J., & Imai, S. I. (2016). Long-term administration of nicotinamide mononucleotide mitigates age-associated physiological decline in mice. Cell Metabolism, 24(6), 795-806. — foundational long-term NMN study from the Imai lab.
- U.S. Food and Drug Administration. (2022). Letter regarding β-nicotinamide mononucleotide (NMN) status as a dietary supplement. — regulatory determination that NMN is excluded from dietary supplement status due to prior drug investigation.
- Grant, R., Berg, J., Mestayer, R., Braidy, N., Bennett, J., Broom, S., & Watson, J. (2019). A pilot study investigating changes in the human plasma and urine NAD+ metabolome during a 6 hour intravenous infusion of NAD+. Frontiers in Aging Neuroscience, 11, 257. — human study documenting actual changes during IV NAD+ infusion.
- Srivastava, S. (2016). Emerging therapeutic roles for NAD+ metabolism in mitochondrial and age-related disorders. Clinical and Translational Medicine, 5, 25. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4963347/ — comprehensive review of NAD+ therapeutic applications.
NAD+ Dosage Guide
NAD+ (Nicotinamide Adenine Dinucleotide) is not a peptide but a coenzyme present in every living cell, built from two nucleotide building blocks (one containing nicotinamide, one containing adenine) linked by phosphate groups. It flips between its oxidized form (NAD+) and reduced form (NADH), functioning as the essential electron carrier in cellular energy production while also serving as a substrate for sirtuins (SIRT1-7), PARPs (DNA repair), and CD38. NAD+ levels decline by roughly 50% between ages 30 and 50, and restoring them is the rationale for injection therapy. This guide is aimed at users pursuing longevity and anti-aging protocols, those targeting chronic fatigue or cognitive decline, addiction recovery (a longstanding clinical application), and wellness enthusiasts seeking improved mitochondrial function. Dosing below combines the Empower Pharmacy and Olympia Pharmaceuticals compounding protocols, the O'Hollaren substance-use-disorder IV protocols from the 1960s–present, and contemporary subcutaneous self-injection frameworks.
Real-World Dosage Protocols by Experience Level
| Experience Level | Dose | Frequency | Notes |
|---|---|---|---|
| Assessment (SC) | 25 mg | 2 times weekly, SC AM | First 2 weeks; inject slowly, assess tolerance |
| Beginner (SC) | 50 mg | 2 times weekly, SC AM | Standard entry dose |
| Standard (SC) | 100 mg | 2–3 times weekly, SC AM | Most common wellness protocol |
| Intermediate (SC) | 150–200 mg | 2–3 times weekly, SC AM | Split across injection sites if needed |
| Loading protocol (SC) | 100–200 mg | Daily, SC AM, 7–10 days | Followed by 2–3x weekly maintenance |
| Clinical IV wellness | 250–500 mg | Once weekly to monthly | 60–120 minute slow infusion |
| Clinical IV intensive | 500–1000 mg | Daily, IV, 4–10 days | Addiction recovery; requires supervision |
Doses also shift depending on the specific goal. The same molecule used for general wellness versus addiction recovery or cognitive enhancement follows dramatically different cycling frameworks.
Dosage by Goal
| Goal | Recommended Dose | Frequency | Cycle Length |
|---|---|---|---|
| General wellness / anti-aging | 50–100 mg | 2–3 times weekly, SC AM | Ongoing maintenance |
| Energy / chronic fatigue | 100–200 mg | 2–3 times weekly, SC AM | 4–8 weeks loading, then maintenance |
| Cognitive enhancement / brain fog | 100 mg | Weekly SC, 4–8 weeks | Then monthly maintenance |
| Addiction recovery (clinical) | 500–1000 mg | Daily IV, 4–10 days | Then weekly boosters 4–8 weeks |
| Longevity / cellular repair | 50–100 mg | 2 times weekly, SC AM | Ongoing maintenance |
| Stacked with glutathione | 100 mg NAD+ + 200 mg glutathione | Separate injections 2–3x weekly | Multi-pathway longevity |
| Stacked with GH secretagogues (Ipamorelin) | 100 mg NAD+ + 200 mcg Ipamorelin | Different timing, separate injections | Endocrine + cellular combined |
Inject slowly — this is the single most important practical point with NAD+. Rapid subcutaneous injection causes pronounced flushing, chest pressure, nausea, and short-lived anxiety that is dose-rate-dependent rather than dose-dependent, so a 100 mg injection delivered over 60–90 seconds is far better tolerated than the same dose in 10 seconds. Dose in the morning — NAD+ supports cellular energy production and evening dosing commonly disrupts sleep. Note that oral NAD+ is not effective (the intact molecule is broken down in the gut), which is why precursors like NMN and NR are the oral alternatives — NAD+ itself requires injection or IV administration to be bioavailable. Absolute contraindications include active cancer (theoretical SIRT/PARP-related concerns around tumor biology), pregnancy, breastfeeding, severe hepatic or renal impairment, and known hypersensitivity — and providers typically require medical clearance for those with cardiovascular disease or bleeding disorders before starting. Rotate injection sites between abdomen quadrants and posterior upper arm to prevent nodule formation.
NAD+ Storage Guide: How to Keep Your Research Compound Stable and Effective
NAD+ (nicotinamide adenine dinucleotide) ships as a white to off-white lyophilized powder in a sealed glass vial, freeze-dried to preserve this coenzyme and extend its shelf life. NAD+ is notably hygroscopic and far less stable than most peptides once reconstituted — cold, dark, dry storage of the sealed vial is what protects it. Here's exactly how to store it.
Lyophilized Powder (Unreconstituted)
| Parameter | Details | Notes |
|---|---|---|
| Storage Temperature | Freezer at −20°C (−4°F) for long-term storage up to 24 months. Refrigeration at 2–8°C (36–46°F) is fine for short-term use up to ~3 months. | Original sealed vial in the freezer is the safest default. |
| Light Sensitivity | Yes — the adenine and nicotinamide ring systems are prone to photodegradation under UV and bright light. | Always keep in the original box or an opaque, amber container. |
| Freezing | Allowed and recommended for the unreconstituted powder. −20°C is standard for long-term storage; −80°C extends stability further if available. Never freeze a reconstituted solution — that permanently damages NAD+. | Freeze from the start if you won't use it within 3 months. |
| Signs of Degradation | Healthy powder is white to off-white and loose or cake-like. Watch for yellowing, browning, clumping, visible moisture, or a sticky texture — NAD+ is particularly hygroscopic and will clump quickly if the seal is broken. | Any color change, clumping, or moisture = discard the vial. |
| Common Mistakes | Leaving the vial at room temperature after delivery, storing in a humid kitchen or bathroom, or opening a cold vial and letting condensation form inside. | Put it in the freezer on arrival, and let sealed vials warm fully to room temperature before opening. |
Shipping & Product Authenticity
Every order is processed quickly and shipped with full tracking. All products come directly from the official Generic Peptides supply chain — in original manufacturer packaging, carefully handled from warehouse to your door.
Shipping Times
| Destination | Delivery Time | Notes |
|---|---|---|
| USA Domestic | 4–5 business days | Faster when local warehouse stock is selected at checkout |
| International | 13–15 business days | Tracking included; update frequency may vary by destination country |
| Order Processing | 24–48 business hours | Processing begins after payment confirmation |
| Tracking | Provided on all orders | Tracking number sent after dispatch; multiple warehouses may result in separate shipments |
Direct Supply & Secure Delivery
This product is supplied through the official Generic Peptides distribution chain and shipped in original manufacturer packaging. Orders are packed securely to protect the contents during transit and to respect customer privacy as a standard practice.
Outer packaging is neutral and does not display product details on the exterior — a common approach to protect shipments from damage, tampering, and unnecessary exposure during delivery.
What to Expect
- Orders are processed after payment confirmation
- USA domestic shipping is typically faster when local stock is selected
- International orders include tracking, though update frequency may vary by destination
- Multiple warehouses may result in separate shipments when applicable
Authenticity & Verified Supply
Every order includes full authenticity assurance: official Generic Peptides presentation, batch-linked lab documentation, and sealed original packaging — giving customers confidence in every purchase.
| Authenticity Feature | Details |
|---|---|
| Packaging | Original manufacturer packaging — sealed and unaltered |
| Lab Documentation | Batch-linked certificate of analysis available on request |
| Supply Chain | Sourced exclusively through official Generic Peptides distribution |
Shipping & Returns
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every cell of your body and one of the most fundamental molecules in biology. It plays a central role in energy metabolism — specifically in converting food into ATP, the energy currency of your cells — and also fuels hundreds of other enzymatic reactions, including DNA repair, gene expression, and the activity of longevity-associated proteins called sirtuins. NAD+ levels decline significantly with age, stress, and certain diseases, which is why "NAD+ boosting" has become a central focus of anti-aging and wellness medicine.
NAD+ acts as a critical electron carrier in cellular respiration, shuttling electrons in and out of your mitochondria to produce ATP. It also serves as a substrate — essentially a fuel — for three major enzyme families: sirtuins (which regulate aging, metabolism, and stress response), PARPs (which repair damaged DNA), and CD38 (which regulates immune and metabolic signaling). When NAD+ is plentiful, these systems work efficiently; when it's depleted, cellular repair slows, mitochondrial function drops, and inflammation rises. This is part of why falling NAD+ levels are linked to many features of aging.
Reported and researched benefits include increased energy and reduced fatigue, improved mental clarity and focus, better sleep, enhanced exercise recovery, improved metabolism and insulin sensitivity, DNA repair support, and potential anti-aging effects through sirtuin activation. It has also shown promise in addiction recovery, particularly for alcohol and substance use disorders, where it appears to ease withdrawal symptoms and cravings. Being honest: most benefits are supported by preclinical research or early clinical trials, and a large 2026 systematic review concluded that while NAD+ supplementation shows clear biological activity, evidence for meaningful anti-aging or wellness outcomes in humans remains inconclusive.
There are three main delivery routes, each with tradeoffs. IV infusion delivers NAD+ directly into the bloodstream with nearly 100% bioavailability — effects are fastest but sessions take 1–4 hours and are expensive. Subcutaneous injections self-administered at home offer high bioavailability with more convenience, usually 1–2 times per week. Oral supplements are the most convenient but have the lowest bioavailability — because NAD+ itself is poorly absorbed through digestion, oral products usually contain NAD+ precursors like NMN (nicotinamide mononucleotide) or NR (nicotinamide riboside) that your body converts into NAD+.
Dosing varies significantly by route. IV NAD+ infusions typically range from 100 mg to 1,000 mg per session, delivered slowly over 2–4 hours, often with a "loading protocol" of multiple sessions in a short window. Subcutaneous injections commonly start at 50 mg weekly and titrate up to 100 mg weekly. Oral NAD+ precursors like NR or NMN are typically dosed at 250–1,000 mg daily, often split into morning doses. These are wellness-clinic protocols — there is no officially approved NAD+ dosing, and individual response varies widely.
NAD+ is generally well tolerated, but side effects depend heavily on the delivery method. IV infusions commonly cause chest tightness, flushing, headache, nausea, and a feeling of "full-body pressure" — especially when infused too quickly, which is why slow infusion is essential. Subcutaneous injections can cause injection-site redness, itching, or mild pain. Oral precursors occasionally cause stomach upset, headache, or flushing. Serious side effects are rare with proper dosing. Anyone with cardiovascular disease, bleeding disorders, severe liver or kidney disease, or active cancer should avoid NAD+ therapy without medical guidance.
NAD+ is the active molecule your cells actually use. NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors — molecules your body can convert into NAD+ through metabolic pathways. Because NAD+ itself is poorly absorbed orally, direct oral NAD+ pills are generally ineffective; NR and NMN are used instead because they absorb much better and get converted to NAD+ inside cells. For injectable or IV therapy, NAD+ itself can be used directly. NR has the most clinical trial data, NMN has been popular but faces some regulatory uncertainty in the US, and direct NAD+ is most often used in IV and subcutaneous forms.
Effects depend on delivery method. IV NAD+ often produces noticeable effects within the same day — many users report increased energy, mental clarity, and reduced fatigue within hours of their first infusion. Subcutaneous injections typically produce subtler effects that accumulate over days to weeks. Oral precursors work more slowly; measurable increases in blood NAD+ levels typically appear within 2–4 weeks, with subjective benefits usually emerging over 1–3 months of consistent use. Clinical benefits related to aging, metabolic health, and cognition generally require months of sustained use to assess.
NAD+ has an overall favorable safety profile, but "safe" doesn't mean "proven effective" for anti-aging purposes. The 2026 systematic review in Frontiers in Aging (covering 113 studies through late 2025) found that no high-quality outcomes trials have evaluated IV or IM NAD+ specifically for anti-aging or wellness. Oral NR and NMN reliably raise blood NAD+ levels, but their impact on meaningful aging-related outcomes remains inconclusive. What this means: NAD+ therapy is likely safe for most healthy adults when properly administered, but the "anti-aging" promises you see in marketing are running ahead of what clinical trials have actually proven.
Costs vary widely by format. IV NAD+ infusions typically run $300 to $1,000 per session at wellness and longevity clinics, with loading protocols of 5–10 sessions costing $2,000–$8,000 total. Subcutaneous NAD+ injections through compounding pharmacies are more affordable, often $200–$400 per month. Oral NR or NMN supplements range from $30 to $120 per month depending on brand and dose. Insurance virtually never covers NAD+ therapy for anti-aging or wellness indications, so these are essentially all out-of-pocket costs. For most people, starting with oral precursors is the most cost-effective approach before committing to injectable therapy.
