Glutathione (GSH) vs TB-500 Ac-LKKTETQ
Updated November 4, 2026 · Reviewed by the PeptidesDB Editorial team
A data-driven comparison of Glutathione (GSH) and TB-500 Ac-LKKTETQ (also searched as TB-500 Ac-LKKTETQ vs Glutathione (GSH)) — effect profiles, evidence, side effects, and which suits weight loss, muscle, or healing goals.
Verdict
Glutathione (GSH) centers on healing, while TB-500 Ac-LKKTETQ leans toward healing. On indexed research, Glutathione (GSH) is ahead (Glutathione (GSH): 75 studies, Human evidence; TB-500 Ac-LKKTETQ: 10, Human evidence). Choose by goal — and read the primary studies. This is research information, not medical advice.
Key takeaways
- •Glutathione (GSH) is strongest for healing; TB-500 Ac-LKKTETQ for healing.
- •Evidence: Glutathione (GSH) Human evidence (75 studies) vs TB-500 Ac-LKKTETQ Human evidence (10).
- •Both are research-use compounds — not FDA-approved.
Effect profiles, overlaid
At a glance
Antioxidant | Immune support
Healing | Tissue repair and regeneration
Glutathione (GSH) vs TB-500 Ac-LKKTETQ: side-by-side
| Metric | Glutathione (GSH) | TB-500 Ac-LKKTETQ |
|---|---|---|
| Class | Immune | Healing |
| Regulatory status | Research use only | Research use only |
| Evidence grade | Human evidence | Human evidence |
| Studies indexed | 75 | 10 |
| Research level | Moderate Research | Limited Research |
| Strongest effect | Healing & recovery | Healing & recovery |
| Healing & recovery | 4.0 | 5.0▲ |
| Muscle & body comp | 1.0 | 3.0▲ |
| Metabolic & appetite | 3.0▲ | 2.0 |
| Neuro & mood | 4.0▲ | 1.0 |
| Sleep & circadian | 1.0▲ | 1.0▲ |
| Inflammation & immune | 4.0▲ | 4.0▲ |
| Skin & aesthetics | 2.0▲ | 2.0▲ |
▲ marks the higher AI-assigned effect score (0–5, describing where the literature concentrates — not clinical efficacy).
Mechanism & pharmacokinetics
| Property | Glutathione (GSH) | TB-500 Ac-LKKTETQ |
|---|---|---|
| Mechanism | Antioxidant; neutralizes reactive oxygen species | Actin-sequestering peptide; promotes cell migration & angiogenesis |
| Route | Intravenous injection, oral, inhalation | Subcutaneous injection (research use) |
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 a tripeptide composed of glutamine, cysteine, and glycine, recognized as the body's primary intracellular antioxidant. It plays a critical role in maintaining redox balance, detoxifying harmful compounds, and supporting immune function. GSH is also involved in various cellular processes, including the regulation of cell proliferation and apoptosis, making it essential for overall cellular health and function.
Full Glutathione (GSH) profile, mechanism & studies →What is TB-500 Ac-LKKTETQ?
Thymosin Beta-4 Active Fragment | Healing Peptide
Full TB-500 Ac-LKKTETQ profile, mechanism & studies →Which is better for your goal?
| Goal | Better fit | Why |
|---|---|---|
| Healing | TB-500 Ac-LKKTETQ | 5.0/5 effect signal |
| Muscle | TB-500 Ac-LKKTETQ | 3.0/5 effect signal |
| Metabolic | Glutathione (GSH) | 3.0/5 effect signal |
| Neuro | Glutathione (GSH) | 4.0/5 effect signal |
| Sleep | Even | Both ~1.0/5 |
| Inflammation | Even | Both ~4.0/5 |
| Skin | Even | Both ~2.0/5 |
Fit reflects community-perceived effect profiles — not head-to-head trials. Read each peptide's studies before deciding.
Can you stack Glutathione (GSH) and TB-500 Ac-LKKTETQ?
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 TB-500 Ac-LKKTETQ: 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 75 approved studies indexed (Human evidence), and TB-500 Ac-LKKTETQ has 10 (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 TB-500 Ac-LKKTETQ better?
It depends on your goal. Glutathione (GSH) is strongest for healing; TB-500 Ac-LKKTETQ for healing. Glutathione (GSH) has more indexed studies (75). See the goal-by-goal breakdown above.
Is Glutathione (GSH) or TB-500 Ac-LKKTETQ better for weight loss?
Glutathione (GSH) shows the stronger metabolic & appetite profile (3.0/5) in the AI-assigned effect profile — though weight-loss outcomes depend on the individual and the evidence base.
Is Glutathione (GSH) or TB-500 Ac-LKKTETQ better for muscle?
TB-500 Ac-LKKTETQ leads on the muscle & body-composition axis (3.0/5).
Which has more research, Glutathione (GSH) or TB-500 Ac-LKKTETQ?
Glutathione (GSH) has 75 approved studies indexed (Human evidence); TB-500 Ac-LKKTETQ has 10 (Human evidence). Higher counts mean more to read, not proven superiority.
Can you stack Glutathione (GSH) and TB-500 Ac-LKKTETQ?
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 TB-500 Ac-LKKTETQ?
Glutathione (GSH): no community-reported effects logged yet. TB-500 Ac-LKKTETQ: none logged yet. These are anonymous reports, not incidence rates — see each profile.
Is Glutathione (GSH) or TB-500 Ac-LKKTETQ FDA-approved?
Glutathione (GSH) is a research-use compound and is not FDA-approved. TB-500 Ac-LKKTETQ is not FDA-approved. Research-use status is not a legal clearance to compound or use in humans.
Is TB-500 Ac-LKKTETQ better than Glutathione (GSH)?
For healing, TB-500 Ac-LKKTETQ has the edge; for healing, 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 TB-500 Ac-LKKTETQ 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 November 4, 2026.