Avobenzone

What is it?

A broad-spectrum chemical UVA filter widely used in sunscreens, known for a photostability challenge that formulators address with stabilizing co-ingredients or encapsulation.

What does it do?

According to PubMed, a study encapsulating avobenzone in polymeric nanocapsules using a natural palm oil as the oily core found the encapsulated avobenzone retained 51-52% of its initial UV-filtering content after 48 hours of UVA exposure, versus only 10% retention for free (non-encapsulated) avobenzone -- real evidence for how modern delivery-system formulation meaningfully improves avobenzone's well-documented photostability limitation.

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Sources

Licuri Oil as a Natural Oily Core for Cationic Polymeric Nanocapsules for Topical Formulation: Development, Characterization, and Incorporation into Hydrogels

Important disclaimer

This page provides general skincare information and is not medical advice, diagnosis or treatment. Ingredient interactions and evidence summaries reflect published, cited sources — not a personal assessment of your skin. For medical skin conditions, rashes, pregnancy/lactation questions or persistent concerns, please consult a licensed dermatologist or HPCSA-registered practitioner.