Uv absorber

Ingredients with this function help to weaken the effect of ultraviolet rays.: they absorb some of the UV radiation and reduce its contact with skin or hair. In sunscreens, such substances act as active ingredients, reducing the risk of redness, photo-damage and premature signs of aging, primarily associated with UVA and UVB rays. The FDA explicitly states that it is the active ingredients of sunscreen products that protect the skin from the harmful effects of ultraviolet radiation, and a wide range of protection is associated with the FDA's UVA and UVB coating.

In a cosmetic formula, such components are important not only for skin care. They can also be used in hair products, where they help reduce damage to color and structure caused by the sun, as well as in decorative cosmetics and day creams with SPF. Their presence also affects the texture of the product: some filters dissolve better in the oil phase, while others require a particularly sophisticated stabilization system so that the product remains effective when applied in the light. For example, Avobenzone is known as an organic filter with good UVA absorption, but it is sensitive to light and often needs photostabilization; Octinoxate is more often used to absorb UVB rays PubChem, PubChem.

It is important to understand that such ingredients do not "cure" the skin and do not provide absolute protection on their own: the result depends on their combination, concentration, uniformity of application and the general formula of the product. Therefore, the same UV absorber can work differently in different products - from a light fluid to a dense cream or spray. This is why manufacturers usually combine multiple filters to achieve more complete and stable FDA protection.