For example, you may have wondered whether retinol or Retin-A is right for you. While there is some crossover in terms of the benefits you can expect with all retinoids, they do vary quite a bit ...

In addition to this: "Tretinoin, under the brand name Retin-A, was the first retinoid ... "It takes three to six months of regular use before improvements in wrinkles are apparent—and the ...