Core Med Science Liposomal Glutathione Review

Same core idea — named Setria glutathione in a liposomal phospholipid complex — executed for higher dose and better value. Core Med Science delivers a full 500 mg per serving (versus 375 mg) and costs less per milligram, which is why it's our 'best liposomal value.' The catch is that 500 mg comes in TWO softgels, so a 60-count bottle is a 30-day supply, and the brand asks you to wait 45-60 minutes before eating. Pure Encapsulations (#1) wins on one-softgel convenience and clean-label practitioner pedigree; Core Med Science wins on dose-per-dollar.

At the form level, the evidence favours it. Sinha 2018 (PMID 28853742) found oral liposomal glutathione raised body stores and immune markers in healthy adults — the human trial behind the liposomal premium — which directly addresses the objection that plain oral GSH showed negligible plasma availability (Witschi 1992) and no biomarker change in 4 weeks (Allen 2011). The honest qualifier: that trial wasn't this exact product, and liposomal quality varies by manufacturer. The category evidence is real; product-specific proof isn't claimed.

The full 500 mg dose is split across two softgels — a formulation choice that gives you a complete plain-range dose in liposomal form, at the cost of halving the bottle to about 30 days. The 45-60 minute pre-meal wait is the manufacturer's instruction, intended to let the liposomes be absorbed before a meal complicates digestion. Treat that as the brand's guidance rather than independently proven protocol — it's a reasonable, if slightly inconvenient, way to use it. If a one-a-day, take-anytime routine matters more to you, Pure Encapsulations (#1) is simpler.

Reasonably so for a softgel liposomal. Core Med Science states it's made in the USA, non-GMO, and free from dairy, egg, shellfish, wheat, tree nuts, and fish — a broad allergen-free profile. As with essentially all softgel liposomals, the phospholipid matrix and softgel shell mean it isn't vegan, and you should check the current label for soy/lecithin source if that's a concern (the brand has noted packaging may vary during a rebrand). For a vegan or fully soy-free option you'd be back to a vegetarian plain capsule (#4, #9).

Often, yes. NAC supplies cysteine so your body synthesises its own glutathione, absorbs well, and is typically cheaper than any liposomal — it solves the absorption problem by sidestepping it. What this product offers instead is the direct supply of glutathione itself, at a full 500 mg, in the best-evidenced delivery form. If you want maximum odds that supplemented glutathione is absorbed and don't mind paying for it, the liposomal route makes sense; if you mainly want to support glutathione status cheaply, NAC deserves a look first.

1. [1] Sinha 2018 PMID 28853742 — Oral supplementation with liposomal glutathione elevates body stores of glutathione and markers of immune function. Oral liposomal glutathione raised body stores and immune-function markers in healthy adults — the human evidence behind this product's liposomal delivery.
2. [2] Witschi 1992 PMID 1362956 — The systemic availability of oral glutathione. A single 3 g oral dose of plain glutathione produced no plasma rise — 'negligible' availability. The plain-form objection liposomal delivery is built to answer.
3. [3] Richie 2015 PMID 24791752 — Randomized controlled trial of oral glutathione supplementation on body stores of glutathione. 250-1000 mg/day plain oral glutathione raised body stores over 6 months — the dose range this product's 500 mg full serving sits inside, delivered in liposomal form.