Prospective, randomized, double‐blind assessment of topical bakuchiol and retinol for facial photoageing - Dhaliwal - 2019 - British Journal of Dermatology - Wiley Online Library
Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide – Kiehl's
RETINOIDS" THE NEW GENERATION OF VITAMIN A! – Derma MD