A Research Article: Formulation and Evaluation Studies of Zinc Oxide-Infused Tinted Sunscreen

Tinted sunscreens have emerged as a multifunctional skincare product offering both photoprotection and cosmetic benefits. While broad-spectrum sunscreens are effective against ultraviolet (UV) radiation, they fall short in protecting the skin from visible light, which also has harmful effects. Traditional Broad-spectrum sunscreens guard against uv radiation but offer limited defence against visible light. For to effectively shield the skin from visible light, a sunscreen must remain visible on the surface. Inorganic filters (also known as mineral filters), like zinc oxide and titanium dioxide, are tipically used in nanoparticles form in sunscreens to avoid leaving a white residue; however, this compromises their ability to block visible light as such, they do not protect against visible light. Tinted sunscreens overcome this limitation by useing different formulations and concentrations of iron oxides and pigmentary titanium dioxide to provide protection against visible light and a more even skin tone. This article aims in the formulation and evaluation of tinted sunscreens, emphasizing their role in protecting sensitive skin types, such as post-inflammatory hyperpigmentation.