Horrobin theorized that the capsule dyes (tartrazine, Ponceau R) interfere with GLA utilization
The acetylated form of glutathione not only offers better absorption, but it is also more stable, making it a better option than even the popular liposomal glutathione supplement
As described above for PABA/NO, JS-K, and GSNO, the NHGs, in accordance with GT expression patterns, contribute to chemotherapy by producing locally high levels of NO which can rapidly react with O 2 - to generate the potent oxidant peroxynitrite that, in turn causes extensive cellular damage, including the nitration of protein tyrosine residues (Kirsch et al., 2001)
Pairing copper peptides with other actives (the works well part, with common-sense rules) Copper peptides are often described as playing well with other actives, but the real trick is not throwing everything on your face at once
Eur J Pharmacol 332: 2333