Prep4+ [Drops] is a serum formulated with 13% Acids, 8% Glycolic Acid, and 5% Mandelic Acid, enhanced with an exfoliating peptide, which accelerates cell renewal to effectively renew the skin, improving radiance and sebum levels immediately. It also optimally maintains the barrier function thanks to Ectoin, and provides immediate soothing action thanks to Tazmann Pepper. Thanks to its effective exfoliating action, it will enhance the results of anti-aging treatments. Suitable for night use Do not apply to the corner of the lips. Do not apply to the periorbicular area.