Products are split into three levels based on ingredient labels
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.
Frequently Asked Questions
Please note that product images displayed on this page are obtained from third-party sources and provided for informational purposes only. Manufacturers and retailers may change product packaging, labeling, ingredients, or appearance without notice, so images may not reflect the most current version. Million Marker does not guarantee the accuracy of product images.
