No.5 Vitamin Niacinamide Concentrated Serum
Concentrated niacinamide and vitamin C serum for brightening and even tone.
About this product
Numbuzin No.5 delivers a potent brightening duo of 5% niacinamide and stabilised vitamin C (ascorbyl glucoside) alongside 5% niacinamide in a concentrated serum that targets dullness, uneven skin tone, and hyperpigmentation. The lightweight, fast-absorbing formula is free from fragrance and alcohol, making it compatible with sensitive skin. Best used morning and evening for visible brightening results within 4 weeks.
Best for oily, combination, normal, dry, sensitive skin looking to address hyperpigmentation, dullness, uneven skin tone โ with a focus on brightening.
Product Attributes
pH Level
Mildly acidic โ close to skin's natural pH (4.5โ5.5). Generally well tolerated.
How to Use
- 1After cleansing and toning, dispense 2โ3 pumps onto fingertips.
- 2Gently press into face and neck.
- 3Allow to absorb before moisturizer.
- 4Use morning and/or evening for best results.
Dermatologist Note
Combines niacinamide with a multi-vitamin complex (B3, B5, C). The synergy between niacinamide and vitamin C in this formula is carefully balanced โ at the right concentrations and with buffering agents, the historically controversial combination can be used effectively for brightening without causing niacin flush.
Based on published clinical literature and dermatological research.
Ingredient Analysis
Full Ingredient List (INCI)
5 ingredientsListed in order of concentration (highest first)
Niacinamide, Ascorbyl Glucoside, Glycerin, Sodium Hyaluronate, Panthenol
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