does glutathione lighten skin for Skin: Acne Cure or Lightening Secret? – Fitspire Glutathione Skin Lightening Supplement -

Helps address Vitamin B12 deficiency and related absorption issues

Li et al demonstrated that vitamin B12 may up-regulated insulin like growth factor-1 (IGF-1) gene expression, and showed a better neuroprotective effect in the presence of good control of hyperglycemia in rats with diabetic peripheral neuropathy 20

Lipophilic side-chain substitutions and conjugation with transport-facilitating groups (e.g., fatty acids, bile acid conjugates) can further increase membrane affinity and intestinal residence time

There is nothing wrong with skin boosters like Profhilo IF you know what to expect and arent expecting miracles

As noted in MHs peptide guide, a lot of health claims come from experiments that are designed poorly, work from a single lab with glaring conflicts of interest, or only feature testing in cells or animals