Liposomal vitamin C is ascorbic acid encapsulated in phospholipid liposomes, increasing absorption and bypassing the gut-transporter saturation that limits standard oral vitamin C to ~200 mg/dose.
Mechanism — Liposomes survive gastric acid and deliver vitamin C directly to enterocytes and into circulation. Plasma levels achievable orally approach those of low-dose IV.
Use case — Immune support during illness, oxidative-stress-heavy periods, post-surgery recovery. Typical 1-2 g 1-3x/day during acute periods, less for maintenance.
Caveats — Liposomal products vary in quality — many are mislabeled. Most adults meet baseline vitamin C from food. The high-dose case is for therapeutic use, not daily maintenance.