Can Retinol and/or Salicylic Acid Be Used with Vitamin C?

Q&A, Retinol, Skin Care, Vitamin C

For today’s daily question feature, I combined two readers’ inquiries:   Question 1: I have a question, I’m wondering whether it’s still effective to use a 2% Salicylic acid toner (Paula’s Choice Clear Extra Strength Targeted Acbe Relief Exfoliating Toner) or 10% Glycolic acid toner (DDF Glycolic 10% Toning Complex) before applying 15% Vitamin C serum (Skinceuticals C Read more »