Polysilicone-15 ( INCI) is an organic compound used in hair products like shampoos, conditioners, hair sprays, pomades and color treatment products to absorb UVB radiation. In the EU, it is also approved for use in

sunscreen Sunscreen, also known as sunblock or sun cream, is a photoprotective topical product for the skin that mainly absorbs, or to a much lesser extent reflects, some of the sun's ultraviolet (UV) radiation and thus helps protect against sunburn and ...

s and cosmetics. The absorption maximum is at about 310 nm. It is marketed as Parsol SLX by

DSM DSM or dsm may refer to: Science and technology * Deep space maneuver * Design structure matrix or dependency structure matrix, a representation of a system or project * Diagnostic and Statistical Manual of Mental Disorders ** DSM-5, the fifth e ...

. The backbone chain is mainly composed of siloxane repeat units, and is of low molecular weight, so being classed as an

oligomer In chemistry and biochemistry, an oligomer () is a molecule that consists of a few repeating units which could be derived, actually or conceptually, from smaller molecules, monomers.Quote: ''Oligomer molecule: A molecule of intermediate relativ ...

References

Parsol SLX
Silicones Sunscreening agents Siloxanes {{dermatologic-drug-stub