Phenylene Bis-Diphenyltriazine

Phenylene Bis-Diphenyltriazine is a synthetic UV filter designed to protect skin from solar radiation. It belongs to a class of organic sunscreen actives that work by absorbing ultraviolet energy across both the UVB and UVA spectrum.This ingredient is formulated into sunscreens and photoprotective skincare products where it functions as a stabilising agent and primary UV absorber. Its unique optical properties allow it to extend protection across a broader range of the light spectrum than some traditional sunscreen filters.

Phenylene Bis-Diphenyltriazine works by absorbing ultraviolet and visible light energy, converting it into heat that is then released from the skin. This prevents these wavelengths from penetrating deeper into the skin where they could cause cellular damage, DNA alterations, and oxidative stress.The broad absorption range of this filter means it can address damage triggers across the solar spectrum, rather than UV radiation alone. This is increasingly recognised as important, since emerging research indicates that visible light, particularly blue light, can contribute to skin damage and pho…

This ingredient is used in sunscreen and photoprotective products that should be applied generously to all sun-exposed areas of the face and body, at least 15 minutes before sun exposure. Reapplication every two hours, or more frequently after swimming or sweating, is recommended to maintain optimal protection. It can be used alongside other skincare actives without contraindication.

Phenylene Bis-Diphenyltriazine has been assessed for safety in cosmetic use. It is generally well-tolerated, though as with any skincare ingredient, patch testing is advisable if you have particularly sensitive skin or known photosensitivities.