Answer
Sep 02, 2025 - 05:30 AM
Difference Between Obagi Professional-C Serum 15% and 20%
The main difference between the 15% and 20% Obagi Professional-C Serums is the concentration of L-ascorbic acid (vitamin C).
-
15% Serum – Ideal for sensitive or dry skin, offering strong antioxidant protection while being gentle enough for daily use.
-
20% Serum – Best for normal to oily or more resilient skin, delivering a higher dose of vitamin C for enhanced brightening and anti-aging results.
Both formulas help reduce fine lines, brighten skin tone, and protect against free radicals, but choosing the right strength depends on your skin type and sensitivity.
