Glutathione (GSH) vs NAD+ (Nicotinamide Adenine Dinucleotide)
Updated August 7, 2026 · Reviewed by the PeptidesDB Editorial team
A data-driven comparison of Glutathione (GSH) and NAD+ (Nicotinamide Adenine Dinucleotide) (also searched as NAD+ (Nicotinamide Adenine Dinucleotide) vs Glutathione (GSH)) — effect profiles, evidence, side effects, and which suits weight loss, muscle, or healing goals.
Verdict
Glutathione (GSH) centers on inflammation, while NAD+ (Nicotinamide Adenine Dinucleotide) leans toward metabolic. On indexed research, NAD+ (Nicotinamide Adenine Dinucleotide) is ahead (Glutathione (GSH): 18 studies, Human evidence; NAD+ (Nicotinamide Adenine Dinucleotide): 24, Human evidence). Choose by goal — and read the primary studies. This is research information, not medical advice.
Key takeaways
- •Glutathione (GSH) is strongest for inflammation; NAD+ (Nicotinamide Adenine Dinucleotide) for metabolic.
- •Evidence: Glutathione (GSH) Human evidence (18 studies) vs NAD+ (Nicotinamide Adenine Dinucleotide) Human evidence (24).
- •Both are research-use compounds — not FDA-approved.
Effect profiles, overlaid
At a glance
Antioxidant | Detoxification
Essential Cellular Coenzyme & Anti-Aging Therapy
Glutathione (GSH) vs NAD+ (Nicotinamide Adenine Dinucleotide): side-by-side
| Metric | Glutathione (GSH) | NAD+ (Nicotinamide Adenine Dinucleotide) |
|---|---|---|
| Class | Metabolic | Longevity |
| Regulatory status | Research use only | Research use only |
| Evidence grade | Human evidence | Human evidence |
| Studies indexed | 18 | 24 |
| Research level | Preclinical | Extensively Studied |
| Strongest effect | Inflammation & immune | Metabolic & appetite |
| Healing & recovery | 4.0▲ | 3.0 |
| Muscle & body comp | 1.0 | 2.0▲ |
| Metabolic & appetite | 3.0 | 4.0▲ |
| Neuro & mood | 4.0▲ | 4.0▲ |
| Sleep & circadian | 1.0▲ | 1.0▲ |
| Inflammation & immune | 5.0▲ | 3.0 |
| Skin & aesthetics | 3.0▲ | 2.0 |
▲ marks the higher AI-assigned effect score (0–5, describing where the literature concentrates — not clinical efficacy).
Mechanism & pharmacokinetics
| Property | Glutathione (GSH) | NAD+ (Nicotinamide Adenine Dinucleotide) |
|---|---|---|
| Mechanism | Antioxidant and redox cycling | Coenzyme in redox reactions |
| Route | Intravenous injection, oral, inhalation | Intravenous infusion |
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 Glutathione (GSH)?
Glutathione (GSH) is an endogenous tripeptide and the body's master intracellular antioxidant, studied for oxidative stress, detoxification, immune function, and skin pigmentation research.
Full Glutathione (GSH) profile, mechanism & studies →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 →Which is better for your goal?
| Goal | Better fit | Why |
|---|---|---|
| Healing | Glutathione (GSH) | 4.0/5 effect signal |
| Muscle | NAD+ (Nicotinamide Adenine Dinucleotide) | 2.0/5 effect signal |
| Metabolic | NAD+ (Nicotinamide Adenine Dinucleotide) | 4.0/5 effect signal |
| Neuro | Even | Both ~4.0/5 |
| Sleep | Even | Both ~1.0/5 |
| Inflammation | Glutathione (GSH) | 5.0/5 effect signal |
| Skin | Glutathione (GSH) | 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 Glutathione (GSH) and NAD+ (Nicotinamide Adenine Dinucleotide)?
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 neither compound is FDA-approved, we don't publish stacking or dosing protocols here. Any combination should be discussed with a qualified clinician.
Glutathione (GSH) vs NAD+ (Nicotinamide Adenine Dinucleotide): side effects
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
Glutathione (GSH) has 18 approved studies indexed (Human evidence), and NAD+ (Nicotinamide Adenine Dinucleotide) has 24 (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 Glutathione (GSH) or NAD+ (Nicotinamide Adenine Dinucleotide) better?
It depends on your goal. Glutathione (GSH) is strongest for inflammation; NAD+ (Nicotinamide Adenine Dinucleotide) for metabolic. NAD+ (Nicotinamide Adenine Dinucleotide) has more indexed studies (24). See the goal-by-goal breakdown above.
Is Glutathione (GSH) or NAD+ (Nicotinamide Adenine Dinucleotide) 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 Glutathione (GSH) or NAD+ (Nicotinamide Adenine Dinucleotide) better for muscle?
NAD+ (Nicotinamide Adenine Dinucleotide) leads on the muscle & body-composition axis (2.0/5).
Which has more research, Glutathione (GSH) or NAD+ (Nicotinamide Adenine Dinucleotide)?
Glutathione (GSH) has 18 approved studies indexed (Human evidence); NAD+ (Nicotinamide Adenine Dinucleotide) has 24 (Human evidence). Higher counts mean more to read, not proven superiority.
Can you stack Glutathione (GSH) and NAD+ (Nicotinamide Adenine Dinucleotide)?
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 Glutathione (GSH) vs NAD+ (Nicotinamide Adenine Dinucleotide)?
Glutathione (GSH): no community-reported effects logged yet. NAD+ (Nicotinamide Adenine Dinucleotide): none logged yet. These are anonymous reports, not incidence rates — see each profile.
Is Glutathione (GSH) or NAD+ (Nicotinamide Adenine Dinucleotide) FDA-approved?
Glutathione (GSH) is a research-use compound and is not FDA-approved. NAD+ (Nicotinamide Adenine Dinucleotide) is not FDA-approved. Research-use status is not a legal clearance to compound or use in humans.
Is NAD+ (Nicotinamide Adenine Dinucleotide) better than Glutathione (GSH)?
For metabolic, NAD+ (Nicotinamide Adenine Dinucleotide) has the edge; for inflammation, Glutathione (GSH) 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
Glutathione (GSH) and NAD+ (Nicotinamide Adenine Dinucleotide) are research-use compounds and are not FDA-approved for human use. 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 August 7, 2026.