SADOER Arbutin Nicotinamide Serum – Brightening & Moisturizing – 30ml:

• Nicotinamide (Niacinamide): A form of Vitamin B3 that is widely studied for its ability to strengthen the skin barrier, reduce transepidermal water loss, regulate sebum production, and visibly fade dark spots by blocking the transfer of pigment (melanin) to skin cells.
• Arbutin: A naturally derived compound derived from plants like bearberry. It functions as a topical skin-brightening agent by inhibiting tyrosinase, the main enzyme responsible for initiating melanin production.
• 3-O-Ethyl Ascorbic Acid (Vitamin C Derivative): Mentioned in the product’s official specifications, this stable derivative provides secondary antioxidant support, helps neutralize free radicals, and assists in evening out the skin tone.

• Visual Appearance: The graphic showcases a transparent 30ml glass dropper bottle filled with a clear, low-viscosity liquid serum.
• Marketing Claims: The left panel uses checkmarks to emphasize three target benefits: smooth skin, bright skin, and moisturization. A red circular emblem reading “Moisturizes Skin” features a chemical structure diagram, styled to convey a sense of scientific or laboratory formulation.
• Application Guidance: Per standard cosmetic practices for active brightening serums, it is typically instructed to apply a few drops evenly across a cleansed face and neck during morning or evening skincare routines, followed by a moisturizer and daily broad-spectrum sun protection.