Methenamine
Methenamine is a cosmetic ingredient used as a preservative agent. It is used in 2 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex, with a maximum permitted concentration). PubMed carries 304 studies of its skin or topical use.
| INCI name | Methenamine |
| Function (observed) | Preservative |
| CAS number | 100-97-0 |
| EC number | 202-905-8 |
| Prevalence | 2 products (0% of dataset) |
| Most used in | Skincare |
| EU status | Restricted (annex V) |
| Max concentration (EU) | 0.15% |
| Scientific studies | 304 on PubMed (skin/cosmetic/topical) |
| Monthly searches | 40,500 |
Used in
Facial Treatments 100%
Frequently asked
- What does Methenamine do in skincare?
- Methenamine functions as a preservative agent in cosmetic formulas.
- Is Methenamine allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with a maximum permitted concentration (0.15%).
- What products contain Methenamine?
- It is most commonly found in Skincare products, especially facial treatments (100% of its uses).
Manufacturers with experience using Methenamine
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.