(We also use a reference sunscreen with known performance to ensure the accuracy of the testing.) About a day later, a trained technician examines the areas for redness. Afterward, smaller sections of that area are exposed to five to six intensities of UV light from a sun simulator for a set time based on how quickly the panelist’s skin burns without protection. Then they soak in a tub of water for 40 or 80 minutes, depending on the product’s water-resistance claim. Our Mineral Baby Organic Sunscreen Lotion SPF 50 is our purest lotion sunscreen, designed to safeguard the. To check SPF, a standard amount of each sunscreen is applied to a 2x3-inch rectangle on each panelist’s back. DETAILS Your little ones skin needs extra TLC. We also do a different test to determine UVA protection, which we think gives more helpful results. “We use three samples, preferably with different lot numbers, of each product.” For SPF-a measure of how well a product protects against UVB rays-we test the sunscreens on fewer people than the FDA’s protocol calls for, and we test only after water immersion because if a product holds up on wet skin, it should hold up on dry skin. and that the SPF products you choose need to fit seamlessly into your life. Taxes and shipping calculated at checkout. Shop facial sunscreen spray & lotion with SPF 18, 30 & 50. ![]() ![]() “We buy the sunscreens for our tests off the shelf, the way consumers would,” says Susan Booth, who oversees our sunscreen testing. Clean, organic face sunscreen with lasting protection for everyday wear.
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