I discuss the benefits of a "low and slow" approach, gradually building tolerance, and how this has positively impacted my skin in my late 40s. After 20+ years of using tretinoin, retinoic acid, and retinol, I believe it's one of the best things I've done for my skin, alongside lasers and daily sunscreen use. #retinol   #tretinoin    #vitamin A     #skincare products