What retinoic acid?
Retinoic acid is the active form that vitamin A breaks down into in order to be utilized by the skin. (1)
What does retinoic acid do?
plays a role in cell growth, stimulates collagen and elastin production and improves hyperpigmentation and discoloration (1)
Resources
1. https://www.dermstore.com/blog/types-of-retinoids-benefits/