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OBAGI MEDICAL

C-Clarifying Serum - Normal To Dry

Last verified: March 2, 2026

  • Hydroquinone USP (4%) (40 Mg/G)
  • Propylene Glycol
  • Water (Aqua)
  • Ascorbic Acid
  • Propylene Carbonate
  • Sodium Lauryl Sulfate

Why This Product is Rated STOP

C-Clarifying Serum - Normal To Dry by OBAGI MEDICAL has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.

We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.

Learn more about how Million Marker scores products →

Frequently Asked Questions

C-Clarifying Serum - Normal To Dry by OBAGI MEDICAL - Non-toxic Facial Care product rated STOP by Million Marker, free from BPA, phthalates, and parabens

Where to buy

OBAGI MEDICAL Google Search

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