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Prequel.

Lucent-C Brightening Vitamin C Serum

Last verified: March 24, 2026

  • Water (Aqua)
  • Propanediol
  • Ascorbic Acid
  • Ethoxydiglycol
  • Isopentyldiol
  • Ferulic Acid
  • Ergothioneine
  • Inulin
  • Niacinamide
  • Hydroxyacetophenone
  • Aminomethyl Propanol
  • 1,2-Hexanediol
  • Caprylyl Glycol
  • Mannitol

Why This Product is Rated SLOW

Lucent-C Brightening Vitamin C Serum by Prequel. 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 →

Frequently Asked Questions

Lucent-C Brightening Vitamin C Serum by Prequel. - Non-toxic Facial Care product rated SLOW by Million Marker, free from BPA, phthalates, and parabens

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