How to Choose an Effective Vitamin C Serum That Won't Oxidize or Stain
Just as someone who tests formulas daily, I guide you to pick a serum that works for your skin: I look for stable derivatives (like sodium ascorbyl phosphate or tetrahexyldecyl…
Just as someone who tests formulas daily, I guide you to pick a serum that works for your skin: I look for stable derivatives (like sodium ascorbyl phosphate or tetrahexyldecyl…
