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Arginine:An amino acid and antioxidant that nourishes the scalp and helps to reduce hair damage and breakage

2006;18(1-2):2538 [DOI] [PubMed] [Google Scholar] 15

Purity, concentration, and sterility cannot be assumed without third-party testing

The position this article takes, given those three valid critiques, is that the mechanism evidence is strong enough, the delivery evidence is biologically plausible enough, and the safety window is wide enough that the recommendation is defensible

Figure 1: Changes in breaking tensile force and relative elongation of the burned part of skin in response to different experimental treatments

Arbutin: Arbutin is a natural compound present in bearberry, cranberry, and blueberry extracts
