History Malagasy woman from Madagascar wearing masonjoany, a traditional sunscreen whose use dates back to the 18th century Burmese girls wearing thanaka for sun protection and cosmetic purposes.Įarly civilizations used a variety of plant products to help protect the skin from sun damage. To effectively protect against all the potential damages of UV light, the use of broad-spectrum sunscreens (covering both UVA and UVB radiation) has been recommended. The routine use of sunscreens may also reduce the risk of melanoma. Medical organizations such as the American Cancer Society recommend the use of sunscreen because it aids in the prevention of squamous cell carcinomas. Some chemical ingredients have also been heavily scrutinised for their toxicity and have thus been banned in places such as Hawaii and Thailand for their impact on aquatic life and the environment. Chemical sunscreen ingredients mainly work by absorbing the UV rays. Chemical sunscreens (also referred to as petrochemical sunscreens), use active ingredients that are typically derived from petroleum (e.g.
Minerals mainly work by reflecting UV rays. Mineral sunscreens (also referred to as physical), use active ingredients that are minerals ( zinc oxide and titanium dioxide).Sunscreens are regulated in terms of containing an active ingredient that is of mineral or chemical origin: Sunscreens are common supplements to clothing, particularly sunglasses, sunhats and special sun protective clothing, and other forms of photoprotection (such as umbrellas). Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion ), sticks, powders and other topical products. Sunscreen, also known as sunblock or sun cream, is a photoprotective topical product for the skin that helps protect against sunburn and most importantly prevent skin cancer.
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