0.25% Finasteride Topical Hair Loss Spray by Healer's Pharma0. 25% Finasteride Topical Hair Loss Spray Finasteride 0. 25% Topical Spray by Healers Pharma is a prescription hair loss treatment applied directly to the scalp. Finasteride inhibits the 5 alpha reductase enzyme, reducing scalp DHT the primary hormonal driver of male pattern (androgenic) alopecia. Prescription required. Topical application targets scalp DHT with lower systemic absorption than oral finasteride, making it a clinically preferred option