Setipiprant is an oral drug that’s currently being tested for use as a hair loss treatment. It was initially developed as a treatment for allergic rhinitis, but recent hair loss-related discoveries have made it a better candidate for hair loss reversal.

setipiprant is an antagonist of the prostaglandin D2 receptor 2 (DP2). This receptor is responsible for bonding with and responding to certain prostaglandins, particularly PGD2. This prostaglandin has been linked to various pathological responses, including those linked to allergies, asthma, and inflammation.

Increase cellular proliferation of outer root sheeth cells.
Increase hair diameter and hair density.
Increase the percentage of hair in the anagen phase.
Exert no negative effect on body hormone levels.
Provide equivalent or better net growth than Finasteride.