When consumed by the body, N-acetyl-cysteine (NAC) converts to cysteine and then glutathione
GHK-Cu is stable, non-irritating and acts on a broader genomic spectrum
Treatment of Arabidopsis seedlings with 5 mM H 2 O 2 increased GCL activity and resulted in a shift from the less active reduced form to the more active oxidized form, as determined by activity assays and immunoblot analysis (Hicks et al., Conservation of the disulfide linkage that mediates the monomer/dimer transition of GCL occurs across the plant kingdom (Gromes et al., Nicotiana tabacum ), Agrobacterium tumefaciens (a-proteobacteria), and Xanthomonas campestris (-proteobacteria) showed that the two proteobacterial GCL remain monomeric during redox changes, even though the disulfide is retained
Once the wound has closed and scar remodeling is underway, the cycle ends
From this and related work, researchers have suggested that doses around 10-13mg/kg/day roughly 700-1,000mg/day for most adults are appropriate for long-term liver support.5 10 68 Benefits such as improved liver insulin sensitivity may be reached at higher doses (1,750mg/day), but gastrointestinal side effects become more common as intake approaches 2,000mg/day.6 43 67 Vinaturas 500mg capsules make it easy to reach the 500mg, 1,000mg, or 1,500mg/day thresholds often studied in liver trials
it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating