
SkinCeuticals Advanced Brightening UV Defense Sunscreen SPF 50 is a product with 35 ingredients: Water, Alcohol Denatured, Ethylhexyl Triazone, Drometrizole Trisiloxane, Isononyl Isononanoate, Isopropyl Lauroyl Sarcosinate, Avobenzone, Diisopropyl Sebacate, Tinosorb S, Niacinamide and 25 more.
Contains: Vitamins - Niacinamide; Antioxidant - Niacinamide, Tocopherol, Sodium Stearoyl Glutamate;
Organic score: 20% natural, 60% chemical. Vegan - No; Cruelty free - No; Reef safe - No;
Positive effects
Concerns
INCI - Full Breakdown
Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.

Alcohol Denatured is a great bacteria killer. Manufacturers often put it inside products to increase their shelf life.
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.
Niacinamide is a form of Vitamin B3 and it’s a superman in cosmetics. This ingredient is researched very well. It has a lot of positive reviews from scientists and experts. It's very important for healthy skin. The lack of this vitamin can cause dryness, itching, and sun sensitivity. The component removes small wrinkles and fine lines, heals wounds, and prevents the forming of cancer cells. It also makes the skin tone even by removing dark spots. It increases ceramide synthesis which increases the overall health of your skin. It fights acne and lowers pores.
Researches say that 4-5% of Niacinamide is the most effective concentration for skincare use.
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