Cyclotetrasiloxane
Cyclotetrasiloxane is a cosmetic ingredient used as a skin conditioning - emollient, hair conditioning agent. It is used in 115 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).
| INCI name | CYCLOTETRASILOXANE |
| Function | SKIN CONDITIONING - EMOLLIENT, HAIR CONDITIONING, SOLVENT |
| CAS number | 556-67-2 / 293-51-6 |
| EC number | 209-136-7 / - |
| Prevalence | 115 products (0.12% of dataset) |
| Most used in | Haircare |
| EU status | Restricted (annex ) |
| Monthly searches | 320 |
Used in
Sunscreens 15.7%General Moisturizers 7.8%Conditioners 7%Hair Oils 7%Hair Sprays 5.2%Serums 5.2%
Frequently asked
- What does Cyclotetrasiloxane do in skincare?
- Cyclotetrasiloxane functions as a skin conditioning - emollient, hair conditioning agent in cosmetic formulas.
- Is Cyclotetrasiloxane allowed in cosmetics?
- Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
- What products contain Cyclotetrasiloxane?
- It is most commonly found in Haircare products, especially sunscreens (15.7% of its uses).
Manufacturers with experience using Cyclotetrasiloxane
Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.