COSRX The Niacinamide 15 Serum vs Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum
COSRX The Niacinamide 15 Serum is 15% niacinamide for niacinamide; Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum is 5% niacinamide. They also differ on paired actives: Zinc PCA · concentration not stated, Acetyl Glucosamine · concentration not stated versus Not stated. Choose by the difference that matters to you; neither is scored as a generic winner.
COSRXThe Niacinamide 15 Serum
A niacinamide serum with 15% Niacinamide, plus Zinc PCA · concentration not stated, Acetyl Glucosamine · concentration not stated.
From $33.00 at W Cosmetics
Kiehl'sUltra Pure High-Potency 5.0% Niacinamide Serum
A niacinamide serum with 5% Niacinamide.
From $58.00 at MECCAThe differences that matter
Ingredient checks
These checks describe the sourced ingredient lists; they are not safety or quality ratings.
Full ingredient lists
COSRX The Niacinamide 15 Serum
Aqua/Water, Pentylene Glycol, Niacinamide (15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol
From wcosmetics.com.au.
Kiehl's Ultra Pure High-Potency 5.0% Niacinamide Serum
Aqua/water, niacinamide, glycerin, propanediol, methyl gluceth-20, hydroxyacetophenone, sodium hyaluronate, caprylyl glycol, carbomer, sodium hydroxide. fmla 685871 4 f.i.l. code z296889/1
From mecca.com.