3 Simple & Effective Tips For Your Retinol Complex 0.5% 1. Start slow New to retinoids? Start slow! You might have to slowly build up to daily use. Learn more here 2. Ingredients to watch out for Avoid using other treatment actives at the same time as our Retinol Complex 0.5%. Avoid ingredients like benzoyl peroxide, high concentrations of AHAs and BHAs. 3. Make it a routine Combine your Retinol Complex 0.5% with these products for the best results Vitamin C E + F Day Dream SPF 40 Hydra-Fader