By now, you probably know that vitamin A, a.k.a. retinol, is an anti-aging superhero and can do wonders for minimizing fine ...

Tretinoin has anti-inflammatory properties that may reduce scalp inflammation, promoting a healthier environment for hair growth. It might also help increase blood flow to the area where it's applied.

Celebrities such as Hailey Bieber are swearing by a secret ingredient, a retinol alternative called tretinoin (pronounced tret-in-oh-in), aka retinoic acid, which, if you’re not all over TikTok ...

And this is done by coming into contact with an enzyme called sulfotransferase on the scalp. But if levels of the enzyme are low, then minoxidil will not be effective. Applying tretinoin can ...

While it’s been very well-known in the skincare world for quite some time now, it wasn’t until the ‘80s that tretinoin started being used on the scalp. “I first started seeing it discussed ...