A targeted exfoliating serum from Isntree, Hyper Acid 4 blends multiple acids in a lightweight, fast-absorbing texture suited for oily and combination skin. Fragrance-free and formulated for regular use, it aims to refine texture and promote smoother tone. Useful for those seeking a chemical exfoliant with clear benefits and measurable safety information.
Ingredient Safety
No risk5
Low risk18
Moderate risk3