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Page A-002
Top 10 niacinamide serum benefits
Most people who use a well-formulated 2–5% niacinamide serum consistently with sunscreen start to notice brightness and texture changes in 4–8 weeks; deeper marks and fine lines usually take longer and results vary from person to person.
Page A-011
Safety, timelines, and when DIY is not enough
Pigmentation rarely vanishes overnight, no matter what the packaging says. With a steady alpha arbutin and niacinamide routine, plus daily sunscreen, many people start to notice subtle changes in eight to twelve weeks: new marks do not look as dark, older spots begin to soften at the edges, and overall tone looks a bit more even. Deeper marks and melasma-type patches can take longer, and some may only improve partially with cosmetic care. It is better to think in terms of gradual fading and prevention of new spots than a complete reset. [3]