n acetyl l cysteine glutathione NAC (N-Acetyl Cysteine) NAC N-Acetyl-L-Cysteine

Collagen supplementation requires ongoing use to maintain benefits

133 The complex degradation pathway of Amadori products forms small electrophilic molecules (e.g., glyoxal and methylglyoxal) which can further spontaneously react with protein nucleophiles and form Advanced Glycation End products (AGEs), which have been implicated in numerous chronic pathologies

doi: 10.1002/iub.1621

PMID: 19 ZengBLaiZSunLZhangZYangJLiZet al

However, many of these studies involved co-supplementation with other nutrients such as magnesium, calcium, and vitamin D, making it difficult to isolate the specific effects of zinc alone

The reaction of glutamate with cysteine is catalyzed by GCL to produce a dipeptide, -glutamylcysteine, which then reacts with glycine catalyzed by GS to produce GSH