Products are split into three levels based on ingredient labels

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Best choice
SLOW
Contains ingredients with possible health concerns
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Contains harmful ingredients
SLOW

iS Clinical

Hydra Cool Serum

Last verified: March 9, 2026

  • Water/Aqua/Eau
  • Sodium Hyaluronate
  • Pantothenic Acid
  • Pentylene Glycol
  • Menthol
  • Phenoxyethanol
  • Asiaticoside
  • Polyporus Umbellatus (Mushroom) Extract
  • Asiatic Acid
  • Madecassic Acid
  • Blue 1 (CI 42090)

Why This Product is Rated SLOW

Hydra Cool Serum by iS Clinical has been evaluated by Million Marker and contains some ingredients with possible health concerns. This product is rated SLOW, indicating moderate concern.

We recommend reviewing the ingredient list carefully and considering safer alternatives when possible. SLOW-rated products may still be acceptable for occasional use.

Learn more about how Million Marker scores products →

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