Isostearic Acid
Isostearic Acid is a cosmetic ingredient used as a binding, cleansing agent. It appears in about 1% of cosmetic products in our 90,000+ product dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).
| INCI name | ISOSTEARIC ACID |
| Function | BINDING, CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - CLEANSING |
| CAS number | 30399-84-9 / 2724-58-5 |
| EC number | 250-178-0 |
| Prevalence | 494 products (0.53% of dataset) |
| Most used in | Skincare |
| EU status | Restricted (annex ) |
| Monthly searches | 390 |
Used in
Sunscreens 38.1%Lip Moisturizers 4.3%Blushes 3.4%Foundations 3.2%General Moisturizers 3%Mascaras 2.8%
Frequently asked
- What does Isostearic Acid do in skincare?
- Isostearic Acid functions as a binding, cleansing agent in cosmetic formulas.
- Is Isostearic Acid allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
- What products contain Isostearic Acid?
- It is most commonly found in Skincare products, especially sunscreens (38.1% of its uses).
Manufacturers with experience using Isostearic Acid
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.