The Inkey List Niacinamide Serum vs Paula's Choice 10% Niacinamide Booster
Paying $39.01 more for Paula's Choice buys you ascorbic acid.
Paula's Choice 10% Niacinamide Booster adds ascorbic acid (moderate evidence) that The Inkey List Niacinamide Serum doesn't have. On consumer consensus, The Inkey List Niacinamide Serum holds 4.3★ across 12,400 reviews vs Paula's Choice 10% Niacinamide Booster's 4.5★ across 4,100 reviews. The extra $39.01 for Paula's Choice 10% Niacinamide Booster is defensible for the added ascorbic acid.
Not medical advice — consult a dermatologist. Conditions are self-declared and never diagnosed by this app.