Glutathione (Liver Support) — Frequently Asked Questions

Both strategies work. NAC (N-acetylcysteine) is the most studied and cost-effective approach — it provides the rate-limiting cysteine that your liver needs to synthesize glutathione. Liposomal glutathione delivers pre-formed GSH directly. For most people, 600-1200mg NAC daily is an effective and affordable starting point. If you want faster or more direct GSH repletion, add or switch to 500mg liposomal glutathione.

Standard (reduced) L-glutathione capsules have very poor oral bioavailability because the tripeptide is broken down by digestive enzymes and gut bacteria before absorption. Studies show standard oral GSH barely raises blood levels. Liposomal glutathione solves this by encapsulating GSH in phospholipid spheres that protect it through the GI tract. S-acetyl glutathione uses an acetyl group to prevent degradation. These advanced forms have demonstrated measurable increases in blood and tissue glutathione levels.