Products are split into three levels based on ingredient labels
Neutrogena
Collagen Bank 15% Vitamin C Serum
Last verified: May 17, 2026
- Propanediol
- Water
- Ascorbic Acid
- Gluconolactone
- Acetyl Dipeptide-31 Amide
- Chrysanthemum Parthenium (Feverfew) Extract
- Hydrolyzed Collagen
- Epigallocatechin Gallate
- Caprylyl Glycol
- Phenoxyethanol
- Sodium Hydroxide
Why This Product is Rated SLOW
Collagen Bank 15% Vitamin C Serum by Neutrogena 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
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