Where Anua Niacinamide 10% + TXA 4% Serum really shines is hydration efficacy, scoring 8.4 compared to Horace Sérum Acide salicylique + Niacinamide's 5.9. With Glycerin, Butylene Glycol, and Sodium Hyaluronate in its top ingredients, Anua Niacinamide 10% + TXA 4% Serum delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. Anua Niacinamide 10% + TXA 4% Serum scores 8.5 here versus 7.4 for Horace Sérum Acide salicylique + Niacinamide. That difference comes down to how each formula is built — the ingredient list tells the story.
Anua Niacinamide 10% + TXA 4% Serum brings Niacinamide, Tranexamic Acid, and Alpha-Arbutin 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.
Anua Niacinamide 10% + TXA 4% Serum comes in at budget pricing with a 8.8 score, which is solid value at that tier.