If the pH is 2 units below the pKa, the HH equation becomes -2 = log A/HA, or \)
Our Top Brightening Body Lotions Best Overall: AmLactin Daily 12% Lactic Acid Moisturizing Lotion, $16 Best with Retinol: Topicals Slather Exfoliating Body Serum, $30 Best for Extra-Dry Skin: OSEA Hyaluronic Body Serum, $48 Best for Mature Skin: Ncessaire The Body Retinol, $62 According to Jenna Queller, MD, a board-certified dermatologist based in Boca Raton, Florida, ingredients such as glycolic acid, lactic acid, salicylic acid, niacinamide, urea, vitamin C, and tranexamic acid are worth keeping an eye out for, as they can exfoliate, reduce inflammation, and interrupt pigment production
Many researchers run both simultaneously, using injectable for systemic tissue support and topical for targeted facial or area-specific improvements