Polysilicone-15
What is Polysilicone-15?
Polysilicone-15 is a synthetic organopolysiloxane compound engineered as an ultraviolet absorber. Chemically, it features a flexible siloxane polymer chain attached to chromophoric groups derived from cinnamic acid, granting it strong absorbance in the UVB spectrum around 290-320 nm. Commonly incorporated into sunscreens, day creams, and makeup with SPF, this lipophilic ingredient disperses evenly in oil phases of formulations. When applied topically, it captures incoming UVB photons from sunlight, transforming the energy into low-level heat that dissipates without harming skin structures. Its silicone structure provides compatibility with various cosmetic bases, enhances water resistance in some products, and demonstrates notable photostability to sustain performance during prolonged sun exposure. Often paired with other filters to broaden protection scope.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Absorbs UVB radiation effectively to help guard against sun exposure.
Blends seamlessly into oily formulas without greasiness.
Maintains stability under sunlight for reliable performance.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People using chemical sunscreens for daily protection. | Those with rare silicone sensitivities. |
| Individuals with oily or acne-prone skin due to non-comedogenic profile. | People opting for mineral-based sun filters only. |
| Users preferring lightweight, silicone-enhanced sun products. | Individuals sensitive to certain chemical UV absorbers. |
Safety Notes
- Rated low concern by hazard assessment databases.
- Approved for regulated use in cosmetic products worldwide.
Frequently Asked Questions about Polysilicone-15
What does Polysilicone-15 do in skincare?
It acts as a UVB-absorbing agent in sun protection products to help block harmful rays.
Is Polysilicone-15 comedogenic?
It carries a comedogenic rating of zero, suitable for pore-prone skin.
How safe is Polysilicone-15?
It earns low hazard scores from safety databases and regulatory approvals.