Very helpful information. I know I’ve been guilty of reading the benefits of different products and getting excited fantasying about the beautiful results I would gain if I slathered all of them all over my face, at once!
I learned not to use retinol & ahas/bha products together. When used together, they can cause redness and irritations. And also make your skin much more sensitive to sunlight. Use them at different times of the day or week.