
Shiseido Clear Sunscreen Stick SPF 50+ is a product with 27 ingredients: Avobenzone, Homosalate, Octisalate, Octocrylene, Diphenylsiloxy Phenyl Trimethicone, Mineral Oil, Hydroxystearic Acid, Triethylhexanoin, PEG/PPG-9/2 Dimethyl Ether, Methyl Methacrylate Crosspolymer and 17 more.
Contains: Vitamins - Tocopheryl Acetate; Antioxidant - Tocopheryl Acetate, Lecithin, Glycyrrhiza Glabra (Licorice) Root Extract, BHT, Tocopherol;
Organic score: 19% natural, 67% chemical. Vegan - No; Cruelty free - No; Reef safe - No;
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INCI - Full Breakdown
Avobenzone is the only chemical UV-protection component with a broad spectrum coverage. It can help to block both UVA I and UVA II rays. It's safe and it is allowed to use at a 3% concentration in the USA and a 5% concentration in the EU countries.
There is one problem: avobenzone loses efficiency when exposed to the sun. If you are outside, it loses 36% of its ability to block UV rays an hour after application. That's why it's recommended to reapply sunscreen every 2 hours.
Octocrylene is an organic chemical sunscreen. It protects against UVA and UVB rays that can damage your skin or even lead to melanoma. It also stabilizes other sunscreen ingredients in a formulation and increases the water resistance of a product. It is approved by the FDA in concentrations of up to 10%. It’s not a very effective component on its own, that’s why manufacturers combine it with other chemical sunscreens.
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