The Paula’s Choice Skin Perfecting 2% BHA Lotion Exfoliant featured in this post was provided for editorial consideration. Affiliate links that benefit this site are included. We’ve been incorporating Paula’s Choice Skin Perfecting 2% BHA Lotion Exfoliant into my skincare routine over the past few weeks and find it to be gentle, sting-free, and definitely effective. First you cleanse your skin, use a toner, use this to exfoliate, and finish with a moisturizer/SPF in the morning and a serum and moisturizer in the evening.