As a facial plastic surgeon I have a lot of respect for Retin A, or better yet, Tazorac, for skin aging; but I have not recommended its use on the scalp. Now I think its fine if you are treating your forehead and a LITTLE gets into your hairline, but I wouldn't apply it to your recipient region.
Dr. Lindsey McLean VA
William Lindsey, MD
Member, International Alliance of Hair Restoration Surgeons
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