Rohto Mentholatum Acnes C10 Serum delivers a powerful 10% pure vitamin C formula to target dark spots, hyperpigmentation, and acne scars. This 15ml lightweight serum penetrates deeply to brighten skin, even out tone, and stimulate collagen production for firmer, younger-looking skin. Suitable for all skin types, it is dermatologically tested and gentle enough for daily use. With regular application, it reveals a more radiant, even-toned complexion.