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Paula's Choice Clinical Niacinamide 20% Treatment scores 8.7/9.8 and Sunday Riley B3 Nice 10% Niacinamide Serum scores 8.5/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.2 points apart.
Scores last verified: June 2026
19 unique
37 unique
These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Active Ingredient Strength is another area of separation. Sunday Riley B3 Nice 10% Niacinamide Serum scores 7.6 here versus 6.7 for Paula's Choice Clinical Niacinamide 20% Treatment. That difference comes down to how each formula is built — the ingredient list tells the story.
Paula's Choice Clinical Niacinamide 20% Treatment brings Niacinamide, Acetyl Glucosamine, and Ascorbyl Glucoside as actives, while sunday Riley B3 Nice 10% Niacinamide Serum relies on Niacinamide, Resveratrol, and Asiaticoside. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Paula's Choice Clinical Niacinamide 20% Treatment is better if you have
Sunday Riley B3 Nice 10% Niacinamide Serum is better if you have
At mid-range pricing with a score of 8.7, Paula's Choice Clinical Niacinamide 20% Treatment delivers strong value. Sunday Riley B3 Nice 10% Niacinamide Serum sits at the premium level with a 8.5 score — the extra cost doesn't translate to better scores here.
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Based on ingredient analysis, Paula's Choice Clinical Niacinamide 20% Treatment scores higher overall. See the full score breakdown above for details on each attribute.
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.