Where Medicube Deep Vita A Retinol Serum really shines is hydration efficacy, scoring 9.8 compared to Horace Sérum Acide salicylique + Niacinamide's 5.9. With Dipropylene Glycol, Butylene Glycol, and Glycerin in its top ingredients, Medicube Deep Vita A Retinol Serum 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 Medicube Deep Vita A Retinol Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Medicube Deep Vita A Retinol Serum brings Niacinamide, Allantoin, and Dipotassium Glycyrrhizate 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.