Comparison
Glutathione vs Sermorelin
Side-by-side of Glutathione and Sermorelin. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Glutathione
Glutathione (GSH) is the body's primary intracellular antioxidant. Oral supplementation has variable bioavailability; sublingual, liposomal, and IV forms.
Sermorelin
Sermorelin peptide therapy uses a 29-amino-acid GHRH analog to raise endogenous GH. Dosing, half-life, sermorelin vs ipamorelin, and safety.
Effects at a glance
Glutathione
- •Body's primary intracellular antioxidant; tripeptide of glutamate, cysteine, glycine
- •Oral bioavailability poor; sublingual, liposomal, IV more reliable
- •Richie 2014 trial showed body GSH store increases at 250-1000 mg/day for 6 months
- •NAC supplementation often more cost-effective indirect strategy
- •Modest signals in NAFLD, skin aging, immune support; weak in cardiovascular
Sermorelin
- •Synthetic 29-amino-acid GHRH fragment; FDA approved 1997 for pediatric GH deficiency as Geref
- •Voluntarily discontinued by Serono in 2008 for commercial reasons; not safety-related
- •Compounded by 503A/503B pharmacies for off-label adult anti-aging and body-composition use
- •Produces physiologic pulsatile GH release; ~10 to 20 minute plasma half-life
- •Standard anti-aging clinic protocol: 200 to 500 mcg subcutaneously pre-bed, often with ipamorelin
- •Banned by WADA under S2 (peptide hormones, growth factors)
Side-by-side
| Attribute | Glutathione | Sermorelin |
|---|---|---|
| Category | supplement | peptide |
| Also known as | GSH, L-glutathione, reduced glutathione | Sermorelin acetate, GRF 1-29, Geref, GHRH (1-29) NH2 |
| Half-life (hr) ↗ | 0.5 | 0.25 |
| Typical dose (mg) ↗ | 500 | 0.3 |
| Dosing frequency | daily, often divided | 1-2x daily |
| Routes | oral, sublingual, intravenous | subcutaneous |
| Onset (hr) | 1 | 0.25 |
| Peak (hr) | 2 | 0.5 |
| Molecular weight | 307.32 | 3357.88 |
| Molecular formula | C10H17N3O6S | C149H246N44O42S |
| Mechanism | Tripeptide antioxidant; substrate for glutathione peroxidase (H2O2 reduction), GST (xenobiotic conjugation), glutaredoxin (redox signaling). GSH:GSSG ratio is the central cellular redox indicator. | Synthetic 29-amino-acid GHRH fragment that binds the GHRH receptor on pituitary somatotrophs to stimulate endogenous pulsatile GH synthesis and release while preserving the GH-IGF-1 negative feedback loop. |
| Legal status | OTC dietary supplement | FDA approved 1997 (Geref, pediatric GHD); voluntarily discontinued by Serono 2008; compounded by 503A/503B pharmacies for off-label adult use; banned by WADA |
| WADA status | allowed | banned |
| DEA / Rx | OTC supplement | Rx only via compounding (no controlled-substance schedule) |
| Pregnancy | Insufficient data at supplemental doses; endogenous compound is safe | Category C (historical labeling); not recommended in pregnancy |
| CAS | 70-18-8 | 86168-78-7 |
| PubChem CID | 124886 | 16129617 |
| Wikidata | Q116907 | Q416620 |
Safety profile
Glutathione
Common side effects
- mild GI upset
Contraindications
- asthma (IV / inhaled forms specifically)
- active chemotherapy without oncologist guidance
Interactions
- chemotherapy agents: theoretical interference with GSH-depletion-dependent agents(moderate)
Sermorelin
Common side effects
- injection-site pain or irritation
- transient flushing
- headache
- vivid dreams (pre-bed dosing)
Contraindications
- pregnancy
- active malignancy
- history of pituitary tumor
- diabetic retinopathy (theoretical)
- untreated hypothyroidism
Interactions
- ipamorelin: synergistic GH release via parallel GHRH and ghrelin pathways; standard anti-aging clinic pairing(minor)
- CJC-1295: pharmacologically redundant (both GHRH-pathway); typically not stacked(minor)
- insulin: sustained GH can blunt insulin sensitivity over weeks(moderate)
- corticosteroids: blunt GH response; reduce expected efficacy(moderate)
- levothyroxine (untreated hypothyroidism): untreated hypothyroidism blunts GH response; correct thyroid first(moderate)
Which Should You Take?
Glutathione comes out ahead for most readers on the criteria we weight: 3 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-B outcome catalogued. Sermorelin is the right call when one of the conditionals below applies.
- → If your priority is liver function, pick Glutathione.
- → If your priority is immune support, pick Glutathione.
- → If your priority is growth-hormone axis, pick Sermorelin.
- → If your priority is post-training recovery, pick Sermorelin.
Edge case: If you want to avoid FDA approved 1997 (Geref, pediatric GHD); voluntarily discontinued by Serono 2008; compounded by 503A/503B pharmacies for off-label adult use; banned by WADA, Glutathione is the more accessible choice.
Default choice: Glutathione. Lower friction to source, and broader goal coverage. Reach for Sermorelin only if your priority sits squarely in the goals it owns above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Glutathione and Sermorelin?
Glutathione and Sermorelin differ in category (supplement vs peptide), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Glutathione or Sermorelin?
Glutathione half-life is 0.5 hours; Sermorelin half-life is 0.25 hours.
Can you stack Glutathione with Sermorelin?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
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