5-Hour Retinoids Skincare Ingredient Course
Learn the science behind retinoids, how they work in the skin, retinization, “retinol uglies,” & how to choose the right retinoid.
If you're looking for an in-depth retinoids course that go...
Reviews
5.0
5 ratings
5
4
3
2
1
Another amazing course! I finally understand the retinoids. The funniest part is that many teachers at my escthetics school were actually saying that Retinoid thin the skin... I have learnt so much, and now I feel more confident! Thank you!