ghk-cu topical for hair party tested and 99% purity confirmed by in GHK-Cu Topical Spray - Wells

Moreover, two main types of receptor-mediated mitophagy pathway have been classified as follows in brief: ubiquitin-independent mitophagy receptors, including BCL2-interacting protein 3 (BNIP3) (Quinsay et al., 2010), BCL2-interacting protein 3 like (NIX/BNIP3L) (Sandoval et al., 2008), FUN14 domain-containing 1 (FUNDC1) (Liu et al., 2012), BCL2-like 13 (BCL2L13) (Otsu et al., 2015), autophagy and beclin 1 regulator 1 (AMBRA1) (Strappazzon et al., 2015), FKBP prolyl isomerase 8 (FKBP8) (Wei et al., 2017), and NLR family member X1 (NLRX1) (Zhang et al., 2019)

Each step addresses specific degradation risks

1977 Apr 15;33(4):548-52

accessed November 25, 2020

This is likely due to collagen having a VERY low leucine content & leucine is the amino acid responsible for stimulating muscle protein synthesis Perhaps collagen has benefits but I will want to see a much more fleshed out mechanism & more hard objective outcome data before I recommend it as a supplement

It also contributes to skin radiance and brightness, making whitening/brightening pills beneficial for skin tone