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Paula's Choice 10% Niacinamide Booster scores 8.3/9.8 vs Horace Sérum Acide salicylique + Niacinamide at 8.0/9.8. 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: April 2026
15 unique
7 in common
15 unique
Where Paula's Choice 10% Niacinamide Booster really shines is hydration efficacy, scoring 7.7 compared to Horace Sérum Acide salicylique + Niacinamide's 5.9. 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. Horace Sérum Acide salicylique + Niacinamide scores 7.4 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 horace Sérum Acide salicylique + Niacinamide relies on Niacinamide, Zinc Pca, and Salicylic Acid. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Horace Sérum Acide salicylique + Niacinamide is better if you have
Paula's Choice 10% Niacinamide Booster is better if you have
Paula's Choice 10% Niacinamide Booster comes in at mid-range pricing with a 8.3 score, which is solid value at that tier.
Paula's Choice 10% Niacinamide Booster edges ahead with a slightly stronger formulation, but Horace Sérum Acide salicylique + Niacinamide 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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