Apply 2–3 drops to a cleansed face and neck every morning and evening. Gently massage until fully absorbed, then follow with a moisturizer. During the day, always finish with a broad‑spectrum sunscreen (SPF 30 or higher) to prevent new pigmentation and maximize the serum’s efficacy. For best results, use consistently as a 3‑month intensive treatment. If using alongside other exfoliating products, gradually introduce to avoid over‑exfoliation.