Hydroxyproline
Hydroxyproline is a cosmetic ingredient used as an antistatic, hair conditioning agent. It is used in 62 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex). PubMed carries 2,298 studies of its skin or topical use.
| INCI name | HYDROXYPROLINE |
| Function | ANTISTATIC, HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - CLEANSING |
| CAS number | 51-35-4 |
| EC number | 200-091-9 |
| Prevalence | 62 products (0.07% of dataset) |
| Most used in | Skincare |
| EU status | Restricted (annex ) |
| Scientific studies | 2,298 on PubMed (skin/cosmetic/topical) |
| Monthly searches | 1,600 |
Used in
Serums 30.6%Eye Moisturizers 8.1%Toners 8.1%General Moisturizers 6.5%Shampoos 6.5%Day Moisturizers 4.8%
Frequently asked
- What does Hydroxyproline do in skincare?
- Hydroxyproline functions as an antistatic, hair conditioning agent in cosmetic formulas.
- Is Hydroxyproline allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
- What products contain Hydroxyproline?
- It is most commonly found in Skincare products, especially serums (30.6% of its uses).
Manufacturers with experience using Hydroxyproline
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.