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Dutasteride vs Finasteride - Is there a huge difference in terms of regrowth/maintenance of hair?

lalo94
Is it true that Fin 1mg ED inhibits 85-90% of 5AR2 (and 1% of 5AR1) whereas Dut 0,5mg ED inhibits 98-99% of 5AR2 (and 50% of 5AR1). Since type 1 inhibition doesn’t prevent hair loss is that extra 8-14% suppression of 5AR2 really worth the 50 times greater suppression of 5AR1? By that I mean if it makes a huge difference in terms of regrowth/maintenance of hair. If so can the extra 8-14% suppression of 5AR2 really be the reason because some studies seem to suggest that Dut is far superior to Fin?

Answers (4)

From board-certified doctors and trusted medical professionals
Serkan Aygin, MD profile photo
Dr. Serkan Aygin, MD
Answered on Jan 22, 2019
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Dr. Serkan Aygin, MD
Physician
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Jeff Rapaport, MD profile photo
Dr. Jeff Rapaport, MD
Answered on Jan 21, 2019
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Dr. Jeff Rapaport, MD
Dermatologic Surgeon, Board Certified in Dermatology
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Jeff Donovan, MD, PhD profile photo
Dr. Jeff Donovan, MD, PhD
Answered on Jul 18, 2019
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1 person found this helpful
William Rassman, MD (retired) profile photo
Dr. William Rassman, MD (retired)
Answered on Jan 20, 2019
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1 person found this helpful

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