This Tretinoin Skin Care Routine Transformed My Skin for the Better Allure Ask A Dermatologist: Mixing Active Ingredients with Tretinoin The Dose Can I use 0.025% retin a gel (prescribed) with a glutathione serum in my skincare routine? Using tretinoin or another retinoid on your neck? Watch this before your skin freaks out! , Comment below if youre using a retinoid in your routine and if you want to see a beginners guide to Can You Use Retinol and Tretinoin Together? TheBeautyFoodie