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Paula's Choice 10% Niacinamide Booster scores 9.2/9.8 vs Sunday Riley B3 Nice 10% Niacinamide Serum at 8.5/9.8. Paula's Choice 10% Niacinamide Booster wins for hydration.
Paula's Choice 10% Niacinamide Booster edges ahead, winning 2 of 5 attributes.
Scores last verified: June 2026
19 unique
38 unique
Where Paula's Choice 10% Niacinamide Booster really shines is hydration efficacy, scoring 7.7 compared to Sunday Riley B3 Nice 10% Niacinamide Serum's 5.1. With Butylene Glycol, Glycerin, and Pentylene Glycol in its top ingredients, Paula's Choice 10% Niacinamide Booster delivers stronger moisture-binding capability.
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 10% Niacinamide Booster. That difference comes down to how each formula is built — the ingredient list tells the story.
Paula's Choice 10% Niacinamide Booster 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 10% Niacinamide Booster 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 9.2, Paula's Choice 10% Niacinamide Booster 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.
Paula's Choice 10% Niacinamide Booster edges ahead with a slightly stronger formulation, but Sunday Riley B3 Nice 10% Niacinamide Serum is still a solid pick.
Based on ingredient analysis, Paula's Choice 10% Niacinamide Booster 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.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.