How to choose the best RETINOL for your skin

Vitamin A as a whole can be made up of many different molecules. Each molecule is of a different weight and size and therefore goes to different levels in the skin.
If you use the prescription retin-A, retinoic acid, it is not working with all the skin layers. Think of your skin as a house, it has to have a strong floor, strong walls and a strong roof.
If you use a “complex” of retinoids (more then one) you will have a stronger skin structure which is what keeps your skin healthier and more youthful.
I prefer to use my retinoids every single evening over top of my serum. My retinoid has three molecules of the vitamin A grouping. This way, I have a stronger skin structure with less surface irritation .
A good home care regimen is about consistency, using products and ingredients that are right for your specific skin needs.
Here is a list of some vitamin a molecules with their molecular weight from smallest to largest.

Retinol - MW, 286.44.
Retinoic acid - MW, 300.42. - (Retin -A)
Retinyl acetate - MW 328.50.
Retinyl propionate - MW 342.56.
Retinyl palmitate - MW, 524.88