Don’t listen to slogans and doctors
I get make my own retin A cream. Find a supplier who will sell you
vitamin A. (INCI Retinyl Palmitate) usage rate is 2% to 5% of your
total recipe. I suggest you start out on the low end and see how it
reacts on your skin then increase it as you need it. I started with 3%
and had some redness at first but it works really well. I make a gel
like lotion and include it in my recipe.