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. Paula's Choice Clinical 1% Retinol Treatment scores 7.1 here versus 5.2 for The INKEY List 360 Acne Clearing Serum with Dioic & Salicylic Acid. That difference comes down to how each formula is built — the ingredient list tells the story.
Paula's Choice Clinical 1% Retinol Treatment brings Retinol, Tetrahexyldecyl Ascorbate, and Palmitoyl Oligopeptide as actives, while the INKEY List 360 Acne Clearing Serum with Dioic & Salicylic Acid relies on Salicylic Acid, Zinc Pca, and Lactic Acid. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Both sit in the mid-range bracket, so value comes down to formulation quality. Paula's Choice Clinical 1% Retinol Treatment gets the nod here with its 8.7 overall score — you're getting more for a similar outlay.