DIAMINOPYRIMIDINE OXIDE

Diaminopyrimidine oxide, is a chemical compound used to increase the volume of hair in the growth stage by working on the deep structure of the roots. It rejuvenates the hair roots so that healthy hair growth can persist.
The perifollicular fibrosis is a condition in which collagen around the roots becomes rigid, tightens, and pushes the hair out.

It is a cosmetic compound used in hair care products to prevent hair loss by combating the hardening of collagen around hair follicles, thereby improving nutrient and blood flow to the hair roots. It functions by inhibiting lysine hydroxylase, an enzyme involved in collagen degradation, to prevent fibrosis around the hair root. While its effectiveness has been shown in studies and it is considered safe for cosmetic use by some bodies, it is not approved as a drug for hair loss in the US or Europe.

It is similar to minoxidil.