Sunday Riley B3 Nice 10% Niacinamide Serum
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Formulation Summary
A premium 10% niacinamide serum built around antioxidant-rich botanicals. The formula pairs standard niacinamide with trans-resveratrol and EGCG from green tea for free radical protection. Brightenyl, a biotechnology-derived brightening agent, rounds out the active complex.
Sunday Riley positions this as a multi-tasking antioxidant treatment rather than a pure niacinamide serum. The botanical extracts include turmeric, centella, boswellia, and neem. These add anti-inflammatory properties but also increase the formula's complexity. The water-based texture absorbs quickly without residue. Contains less than 1% synthetic fragrance.
Quick Facts
Designed For
- •Those seeking an antioxidant-rich niacinamide treatment
- •Users who want botanical anti-inflammatory ingredients alongside niacinamide
- •People addressing post-acne dark spots and uneven tone
- •Those who prefer prestige skincare with complex formulations
- •Users comfortable with light synthetic fragrance
May Not Suit
- •Those sensitive to synthetic fragrance
- •Users who prefer minimal ingredient lists
- •People seeking budget-friendly niacinamide options
- •Those with known sensitivities to botanical extracts
Key Ingredients
| Ingredient | Concentration | Function |
|---|---|---|
| Niacinamide | 10%brand-confirmed | Regulates sebum production, minimizes pore appearance, brightens skin tone, supports barrier function |
| Trans-Resveratrol | — | Antioxidant derived from grapes; neutralizes free radicals; supports brightening |
| Diglucosyl Gallic Acid (Brightenyl) | — | Biotechnology-derived brightening ingredient; activated by skin microbiome; reduces dark spot appearance |
| Epigallocatechin Gallatyl Glucoside (EGCG) | — | Green tea-derived antioxidant; protects against pollution and oxidative stress |
| Madecassoside + Asiaticoside | — | Centella asiatica derivatives; calm inflammation; support skin healing |
The Formulation Explained
Antioxidant-forward approach
Sunday Riley positions this as a multi-tasking antioxidant treatment rather than a pure niacinamide serum. Trans-resveratrol and EGCG from green tea provide free radical protection. Brightenyl, a biotechnology-derived ingredient activated by the skin microbiome, addresses dark spots through a different mechanism than niacinamide alone.
Complex botanical formula
The formula includes turmeric, centella, boswellia, neem, and other botanical extracts. These add anti-inflammatory and soothing properties but also make this a more complex formula. Users with botanical sensitivities may want to patch test.
10% niacinamide concentration
Niacinamide appears second in the INCI list after water, consistent with the 10% claim. This is a standard effective concentration for oil control, pore minimizing, and brightening benefits.
Contains fragrance
Unlike many niacinamide serums, this formula includes synthetic fragrance at less than 1%. The brand is transparent about this. If you're sensitive to fragrance, this may not be the right choice.
Ingredients to Know
Present at less than 1%; may sensitize fragrance-reactive skin
Common preservative; generally well tolerated
Preservative; rare sensitizer
Anti-inflammatory botanical; rare sensitizer in some individuals
User Feedback Patterns
Full INCI List
34 ingredients · Click "Show full list" to view
About Sunday Riley
Discloses niacinamide percentage but not concentrations of supporting actives. Does not publish full clinical study data.
Related Comparisons
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Side-by-side ingredient comparisons against other products in the same category.
- vs COSRX The Niacinamide 15 Serum
- vs Glow Recipe Watermelon Glow Niacinamide Dew Drops
- vs Good Molecules Niacinamide Brightening Toner
- vs La Roche Posay Mela B3 Serum
- vs Naturium Niacinamide Serum 12% Plus Zinc 2%
- vs Paula's Choice 10% Niacinamide Booster
- vs Paula's Choice Clinical Niacinamide 20% Treatment
- vs Peach & Lily Glass Skin Refining Serum
- vs Stratia Lipid Gold
- vs The Inkey List Niacinamide Oil Control Serum
- vs The Inkey List SuperSolutions 20% Niacinamide Serum
- vs The Ordinary Niacinamide 10% + Zinc 1% Serum
- vs Versed Just Breathe Clarifying Serum
Sources
- • sundayriley.com (brand website)
- • sephora.com (retailer reviews)
- • ulta.com (retailer reviews)
- • Reddit r/SkincareAddiction
Last updated: 2026-03
Rating Scales
Comedogenicity (0-5)
Likelihood of clogging pores. 0 = won't clog, 1-2 = low, 3 = moderate, 4-5 = high.
Irritancy (0-5)
Potential for skin irritation. 0 = non-irritating, 1-2 = low, 3 = moderate, 4-5 = high.
Ratings based on published ingredient studies. Individual reactions may vary.