NAD+ (Nicotinamide Adenine Dinucleotide) vs Sermorelin vs Thymosin Alpha-1
Updated November 5, 2026 · Reviewed by the PeptidesDB Editorial team
A data-driven comparison of NAD+ (Nicotinamide Adenine Dinucleotide) and Sermorelin and Thymosin Alpha-1 (also searched as Thymosin Alpha-1 vs Sermorelin vs NAD+ (Nicotinamide Adenine Dinucleotide)) — effect profiles, evidence, side effects, and which suits weight loss, muscle, or healing goals.
Verdict
Comparing NAD+ (Nicotinamide Adenine Dinucleotide), Sermorelin, Thymosin Alpha-1 across AI-assigned effect profiles and indexed evidence. NAD+ (Nicotinamide Adenine Dinucleotide) has the most studies (47). Match each to your goal below, and read the primary research before deciding. Research information, not medical advice.
Key takeaways
- •NAD+ (Nicotinamide Adenine Dinucleotide) is strongest for metabolic; Sermorelin for muscle.
- •Evidence: NAD+ (Nicotinamide Adenine Dinucleotide) Human evidence (47 studies) vs Sermorelin Human evidence (18).
- •Check the FDA-approval status chips above before assuming a legal use pathway.
Effect profiles, overlaid
At a glance
Metabolic | Energy production and cellular repair
GHRH Mimetic | Growth Hormone Deficiency
Immune modulation | Infections and inflammatory diseases
NAD+ (Nicotinamide Adenine Dinucleotide) vs Sermorelin vs Thymosin Alpha-1: side-by-side
| Metric | NAD+ (Nicotinamide Adenine Dinucleotide) | Sermorelin | Thymosin Alpha-1 |
|---|---|---|---|
| Class | Metabolic | Muscle | Immune |
| Regulatory status | Research use only | Research use only | FDA-approved |
| Evidence grade | Human evidence | Human evidence | Human clinical |
| Studies indexed | 47 | 18 | 21 |
| Research level | Moderate Research | Moderate Research | FDA Approved |
| Strongest effect | Metabolic & appetite | Muscle & body comp | Inflammation & immune |
| Healing & recovery | 3.0 | 3.0 | 4.0▲ |
| Muscle & body comp | 2.0 | 4.0▲ | 0.0 |
| Metabolic & appetite | 4.0▲ | 3.0 | 0.0 |
| Neuro & mood | 4.0▲ | 2.0 | 0.0 |
| Sleep & circadian | 0.0 | 1.0▲ | 0.0 |
| Inflammation & immune | 3.0 | 2.0 | 5.0▲ |
| Skin & aesthetics | 1.0 | 3.0▲ | 0.0 |
▲ marks the higher AI-assigned effect score (0–5, describing where the literature concentrates — not clinical efficacy).
Mechanism & pharmacokinetics
| Property | NAD+ (Nicotinamide Adenine Dinucleotide) | Sermorelin | Thymosin Alpha-1 |
|---|---|---|---|
| Mechanism | Electron carrier in redox reactions | GHRH (1–29) analog | Enhances T-cell function and promotes maturation of immune cells |
| Route | Intravenous infusion | Subcutaneous injection | — |
Established pharmacology — curated for well-characterized compounds and AI-summarized otherwise. A blank (—) means no reliable single value is published (half-life figures for some peptides genuinely disagree across sources). Verify against primary sources such as FDA labels and ClinicalTrials.gov.
What is NAD+ (Nicotinamide Adenine Dinucleotide)?
NAD+ (Nicotinamide adenine dinucleotide) is a crucial coenzyme involved in various metabolic processes, including energy production and cellular repair mechanisms. Recent research highlights its potential roles in protecting against oxidative stress and enhancing therapeutic efficacy in certain cancer treatments.
Full NAD+ (Nicotinamide Adenine Dinucleotide) profile, mechanism & studies →What is Sermorelin?
Sermorelin is a synthetic peptide that acts as a growth hormone-releasing hormone (GHRH) analog, primarily stimulating the pituitary gland to enhance the secretion of endogenous growth hormone (GH). The mechanism of action involves binding to GHRH receptors on pituitary somatotrophs, leading to increased production and release of GH. This endogenous GH then exerts various physiological effects, including promoting growth, metabolism, and tissue repair.
Full Sermorelin profile, mechanism & studies →What is Thymosin Alpha-1?
Thymosin Alpha-1 (Tα1) is a peptide that plays a crucial role in modulating immune responses and has been investigated for its potential therapeutic applications in various conditions, including infections and inflammatory diseases.
Full Thymosin Alpha-1 profile, mechanism & studies →Which is better for your goal?
| Goal | Better fit | Why |
|---|---|---|
| Healing | Thymosin Alpha-1 | 4.0/5 effect signal |
| Muscle | Sermorelin | 4.0/5 effect signal |
| Metabolic | NAD+ (Nicotinamide Adenine Dinucleotide) | 4.0/5 effect signal |
| Neuro | NAD+ (Nicotinamide Adenine Dinucleotide) | 4.0/5 effect signal |
| Sleep | Sermorelin | 1.0/5 effect signal |
| Inflammation | Thymosin Alpha-1 | 5.0/5 effect signal |
| Skin | Sermorelin | 3.0/5 effect signal |
Fit reflects community-perceived effect profiles — not head-to-head trials. Read each peptide's studies before deciding.
Can you stack NAD+ (Nicotinamide Adenine Dinucleotide) and Sermorelin?
People sometimes combine peptides that target different pathways, but there is little controlled research on this specific pairing and the interactions aren't well characterized. Because at least one is a research-use compound, we don't publish stacking or dosing protocols here. Any combination should be discussed with a qualified clinician.
NAD+ (Nicotinamide Adenine Dinucleotide) vs Sermorelin: side effects
No community-reported effects logged yet.
No community-reported effects logged yet.
No community-reported effects logged yet.
Anonymous community reports (count = number of reports), not clinical incidence rates.
What the research says
NAD+ (Nicotinamide Adenine Dinucleotide) has 47 approved studies indexed (Human evidence), and Sermorelin has 18 (Human evidence). The Librarian re-checks PubMed, Europe PMC and ClinicalTrials daily, so these counts move. Open each profile to read the summaries and sources.
Frequently asked questions
Is NAD+ (Nicotinamide Adenine Dinucleotide) or Sermorelin better?
It depends on your goal. NAD+ (Nicotinamide Adenine Dinucleotide) is strongest for metabolic; Sermorelin for muscle. NAD+ (Nicotinamide Adenine Dinucleotide) has more indexed studies (47). See the goal-by-goal breakdown above.
Is NAD+ (Nicotinamide Adenine Dinucleotide) or Sermorelin better for weight loss?
NAD+ (Nicotinamide Adenine Dinucleotide) shows the stronger metabolic & appetite profile (4.0/5) in the AI-assigned effect profile — though weight-loss outcomes depend on the individual and the evidence base.
Is NAD+ (Nicotinamide Adenine Dinucleotide) or Sermorelin better for muscle?
Sermorelin leads on the muscle & body-composition axis (4.0/5).
Which has more research, NAD+ (Nicotinamide Adenine Dinucleotide) or Sermorelin?
NAD+ (Nicotinamide Adenine Dinucleotide) has 47 approved studies indexed (Human evidence); Sermorelin has 18 (Human evidence). Higher counts mean more to read, not proven superiority.
Can you stack NAD+ (Nicotinamide Adenine Dinucleotide) and Sermorelin?
Some users combine peptides, but there's little controlled data on this specific pairing, and interactions aren't well characterized. We don't publish stacking protocols for compounds that aren't FDA-approved. Discuss any combination with a qualified clinician.
What are the side effects of NAD+ (Nicotinamide Adenine Dinucleotide) vs Sermorelin?
NAD+ (Nicotinamide Adenine Dinucleotide): no community-reported effects logged yet. Sermorelin: none logged yet. These are anonymous reports, not incidence rates — see each profile.
Is NAD+ (Nicotinamide Adenine Dinucleotide) or Sermorelin FDA-approved?
NAD+ (Nicotinamide Adenine Dinucleotide) is a research-use compound and is not FDA-approved. Sermorelin is not FDA-approved. Research-use status is not a legal clearance to compound or use in humans.
Is Sermorelin better than NAD+ (Nicotinamide Adenine Dinucleotide)?
For muscle, Sermorelin has the edge; for metabolic, NAD+ (Nicotinamide Adenine Dinucleotide) does. Neither is universally "better" — it's goal-dependent, and both should be weighed against their evidence base above.
Comparing related peptides
Regulatory & legal status
Approval status varies (see the chips at the top). FDA approval and compounding rules for peptides change frequently, and research-use status is not a legal clearance for human use. The FDA does not review compounded drugs for safety, effectiveness, or quality. Verify current status with primary sources before acting. Last reviewed November 5, 2026.