Understand the source comparison
Glutathione Before and After Real Results: Product Comparison
Oral Capsules (Standard) 5–12% 500–1000mg daily Minimal measurable skin lightening even at 24 weeks Low efficacy. Peptide degradation in GI tract limits systemic absorption Liposomal Oral 20–25% 16–24 weeks for modest tone shift in low-oxidative-stress individ
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Oral Capsules (Standard)
- 5–12%
- 500–1000mg daily
- Minimal measurable skin lightening even at 24 weeks
- Low efficacy. Peptide degradation in GI tract limits systemic absorption
- Liposomal Oral
- 20–25%
- 16–24 weeks for modest tone shift in low-oxidative-stress individuals
- Improved over standard oral but still inferior to IV for cosmetic endpoints
- IV Infusion (Standalone)
- 100%
- 600–1200mg 2x/week
- 12–16 weeks without cofactor support
- High bioavailability but GSSG accumulation limits sustained effect
- IV + Vitamin C Stack
- 100% (with extended redox cycling)
- 600–1200mg GSH + 1000–2000mg ascorbic acid 2x/week
- 8–12 weeks for measurable melanin index reduction
- Gold standard. Vitamin C regenerates GSH and prevents oxidative accumulation
- Sublingual Strips
- 15–20%
- 500mg daily
- 20+ weeks with inconsistent outcomes
- Better than oral capsules but still subject to enzymatic degradation in saliva
- Nebulized (Inhaled)
- 30–40%
- 200–400mg daily
- Not applicable to skin lightening (targets pulmonary GSH levels)
- Used for respiratory conditions. Does not produce systemic cosmetic effects