The systemic copper load from topical application is minimal, so there's generally no concern about combining routes
The body attempts to repair this damage, but the poor blood supply to tendons limits healing capacity
Dont assume that animal data is the same as human data
For controlled skin studies, topical application removes the confounders introduced by injection no injection site reactions, no systemic distribution diluting local concentration, no injection technique variability across research subjects
Primary keratinocyte culture is limited by their variability in culture conditions, and their susceptibility to irritants varies with the number of passages
MOTS-c is the peptide most directly tied to mitochondrial function, since it is encoded in mitochondrial DNA and signals mitochondrial stress [2][3]