A spermidine-based nutritional supplement prolongs the anagen phase of hair follicles in humans: a randomized, placebo-controlled, double-blind study.
Dermatol Pract Concept. 2017 Oct 31;7(4):17-21. doi: 10.5826/dpc.0704a05. eCollection 2017 Oct.
Dermatol Pract Concept. 2017.
PMID: 29214104
Free PMC article.