Flawed strategies Let's discuss the four popular supplements on the market that claim to increase cellular glutathione: N-acetylcysteine (NAC) Despite its rather extravagant name, NAC (or any other cysteine-based prodrug) is just a form of Cysteine
1 Gram(s) S-Acetyl Glutathione
Downstream processing of therapeutic peptides by means of preparative liquid chromatography
On the operational front, Life Extension is commendable for third-party testing both its raw materials and its finished products
And its only available from a 503A pharmacy through DrWell
What isn't established is that this translates into the dramatic, precisely-quantified superiority commonly claimed, and what's often left out entirely is that topical GHK-Cu, including our own 1% GHK-Cu Face and Skin Serum, has more, not less, human clinical evidence behind it, plus a regulated supply chain with verifiable manufacturing standards