Abobenzone is one of the very few chemical sunscreens with good coverage of UVA spectrum. Abobenzone is relatively nonirritating, although, as with many skin care ingredients, the possibility of low-level topical or systemic toxicity with long-term use remains unresearched. Abobenzone degrades in sunlight (especially if mixed with inorganic sunscreens) and loses effectiveness over time. Development of stabilized and microencapsulated versions of avobenzone is promising and may reduce the above drawbacks.