now glutathione benefits 9 Health of What Is Glutathione? Benefits, Supplements

It is not approved for human or veterinary use, clinical administration, therapeutic application, or diagnostic procedures of any kind

So I think you're referring to

Granulathiazole A reduces -synuclein accumulation through NRF2/HO-1 activation (126) and betulinic acid improves behavioral outcomes by reducing ROS levels (127)

That works directly against growth hormone peptides like sermorelin and ipamorelin

The effects of the oral supplementation of L-cystine associated with reduced L-glutathione-GSH on human skin pigmentation: a randomized, double-blinded, benchmark- and placebo-controlled clinical trial J Cosmet Dermatol