StephNickolSeca/ResistenteThese are great starter retinols. CeraVe Resurfacing Retinol Face Serum4.7(176)756COSRX The Retinol 0.1 Cream4.7(69)85First Aid Beauty 0.3% Retinol Complex Serum with Peptides4.8(5)610TakSeca/SensibleI like all three brands, I will definitely try any of them10