Cyclopentasiloxane ●
TL;DR. This ingredient is primarily a volatile carrier and slip agent, helping formulas spread smoothly and dry down with a light, non-greasy feel. It is often used in hair care, makeup, sunscreens, and skin care to reduce tack and improve sensory elegance.
What does Cyclopentasiloxane do in a cosmetic formula?
This ingredient is primarily a volatile carrier and slip agent, helping formulas spread smoothly and dry down with a light, non-greasy feel. It is often used in hair care, makeup, sunscreens, and skin care to reduce tack and improve sensory elegance.
Is Cyclopentasiloxane clean?
It usually has low skin irritation potential, but many clean-beauty frameworks flag it for environmental persistence and bioaccumulation concerns rather than direct skin compatibility. It is commonly restricted or not accepted in stricter clean standards, especially in rinse-off formats.
Is Cyclopentasiloxane sustainable?
This material is synthetically made from mineral and petrochemical inputs rather than renewable feedstocks, and it is not readily biodegradable. Its volatility and persistence create scrutiny across wastewater, sediment, and air-release pathways.
Is Cyclopentasiloxane COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. From a Green Chemistry perspective, it scores poorly on renewability and end-of-life profile because it is synthetic, persistent, and not readily biodegradable.
How does Cyclopentasiloxane work chemically?
The molecule is a five-unit cyclic organosilicon fluid with low viscosity, high spreadability, and rapid volatility compared with heavier conditioning fluids. It is pH-independent and often used around 1 to 20% as a carrier, sensory modifier, or temporary conditioning aid that can evaporate after application.
Last updated 2026-05-13