Comparison
Curcumin vs Glutathione
Side-by-side of Curcumin and Glutathione. 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.
Curcumin
Curcumin supplement guide: turmeric extract at 500-1000 mg/day, piperine and Meriva for absorption, evidence in joint inflammation and mood.
Glutathione
Glutathione (GSH) is the body's primary intracellular antioxidant. Oral supplementation has variable bioavailability; sublingual, liposomal, and IV forms.
Effects at a glance
Curcumin
- •Reduces osteoarthritis knee pain comparable to ibuprofen at 1500 mg/day enhanced formulation
- •Modest antidepressant effect (SMD ~0.34) as monotherapy or SSRI adjunct in major depression
- •Standard curcumin has ~3% bioavailability; Meriva, BCM-95, Theracurmin shift absorption 5-30 fold
- •Inhibits NF-kB and COX-2; reduces hs-CRP, IL-6, TNF-alpha in chronic inflammation
- •Antiplatelet effect at higher doses; meaningful interaction with warfarin and DOACs
- •Iron chelation can contribute to deficiency in already-marginal patients
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
Side-by-side
| Attribute | Curcumin | Glutathione |
|---|---|---|
| Category | natural | supplement |
| Also known as | turmeric extract, diferuloylmethane | GSH, L-glutathione, reduced glutathione |
| Half-life (hr) ↗ | 7 | 0.5 |
| Typical dose (mg) ↗ | 500 | 500 |
| Dosing frequency | 1 to 2 times daily with meals | daily, often divided |
| Routes | oral | oral, sublingual, intravenous |
| Onset (hr) | 2 | 1 |
| Peak (hr) | 4 | 2 |
| Molecular weight | 368.38 | 307.32 |
| Molecular formula | C21H20O6 | C10H17N3O6S |
| Mechanism | Inhibits NF-kB transcription factor, COX-2, and lipoxygenase; activates AMPK and Nrf2; modulates JAK-STAT and PI3K-Akt kinase signaling. Pleiotropic anti-inflammatory and antioxidant effects. | Tripeptide antioxidant; substrate for glutathione peroxidase (H2O2 reduction), GST (xenobiotic conjugation), glutaredoxin (redox signaling). GSH:GSSG ratio is the central cellular redox indicator. |
| Legal status | Dietary supplement (global) | OTC dietary supplement |
| WADA status | allowed | allowed |
| DEA / Rx | Not scheduled | OTC supplement |
| Pregnancy | Culinary turmeric is safe; supplemental curcumin best avoided in pregnancy | Insufficient data at supplemental doses; endogenous compound is safe |
| CAS | 458-37-7 | 70-18-8 |
| PubChem CID | 969516 | 124886 |
| Wikidata | Q312266 | Q116907 |
Safety profile
Curcumin
Common side effects
- nausea
- diarrhea
- dyspepsia
- yellow stool (benign)
Contraindications
- active gallstones (curcumin stimulates gallbladder contraction)
- severe biliary obstruction
- scheduled elective surgery (discontinue 1-2 weeks prior)
Interactions
- warfarin and DOACs: additive antiplatelet and anticoagulant effects; meaningful bleeding risk at 1000+ mg/day(major)
- aspirin and NSAIDs: additive antiplatelet effect(moderate)
- tacrolimus and cyclosporine: CYP3A4 and P-gp modulation may alter drug levels(moderate)
- iron supplements: curcumin chelates iron; can contribute to deficiency in marginal patients(moderate)
- chemotherapy agents: potential interference with multiple agents; coordinate with oncology team(major)
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)
Which Should You Take?
Curcumin and Glutathione score evenly on the criteria we weight (goal breadth, legal accessibility, evidence depth). The conditionals below should drive the decision more than any aggregate score.
- → If your priority is post-training recovery, pick Curcumin.
- → If your priority is joint health, pick Curcumin.
- → If your priority is liver function, pick Glutathione.
- → If your priority is immune support, pick Glutathione.
Edge case: Half-lives differ materially (Curcumin ~7 hr vs Glutathione ~0.5 hr). Curcumin reaches steady state faster; Glutathione is easier to dial in if tolerability is uncertain.
Default choice: either is defensible. Curcumin edges out on goal breadth + legal accessibility; Glutathione is the right call if your priority sits in the goals listed 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 Curcumin and Glutathione?
Curcumin and Glutathione differ in category (natural vs supplement), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Curcumin or Glutathione?
Curcumin half-life is 7 hours; Glutathione half-life is 0.5 hours.
Can you stack Curcumin with Glutathione?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper