Comparisons · FAQ
What is the main difference between topical and oral finasteride for hair loss?
Short answer
Oral finasteride is a pill, while topical finasteride is applied to the scalp. Both reduce DHT, a hormone linked to male pattern hair loss. Oral finasteride is FDA-approved for this use in men. Compounded topical finasteride is not FDA-approved. Either may help some patients. Results vary.
The main difference is how the medicine enters your body. Oral finasteride is swallowed and acts throughout the body. Topical finasteride is placed on the scalp. Some of the topical medicine can still enter the bloodstream, so scalp use does not mean there is no whole-body exposure.
Finasteride blocks an enzyme that helps turn testosterone into dihydrotestosterone, or DHT. DHT can shrink scalp hair follicles in people with male pattern hair loss. Lowering DHT may slow this process and support hair growth. Results vary. Neither form is a cure, and not every type of hair loss is linked to DHT.
Oral finasteride is FDA-approved for male pattern hair loss in men. There is no FDA-approved topical finasteride product in the United States. Compounded medications are prepared by a licensed pharmacy for one patient and are not FDA-approved. A physician licensed in your state reviews your health history and hair loss pattern before deciding whether either form is appropriate.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.
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