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As of September 1, 2025, the European Union has officially banned TPO (trimethylbenzoyl diphenylphosphine oxide)—a chemical that helps gel nail polish cure under UV or LED light.
A New York City "Super Doc" dermatologist sits down for a Q&A about the popular skincare ingredient.
Paola Ponce breaks down what HEMA is and if it's bad for you when found in nail product.
Parabens are a family of related chemicals that are commonly used as preservatives in cosmetic products.
Self-tanning agents work by tinting the uppermost skin layer with the active ingredient DHA, a sugar molecule that reacts with the amino acids in the upper skin layer.
A first-of-its-kind law in California requires all ingredients to be disclosed on the labels of professional beauty products. Lawmakers also toughen cruelty-free cosmetics regulations.
Here’s the lowdown on some of the most common types of glitter.
1997 was a pivotal year in the nail industry’s fight against the use of MMA (methyl methacrylate) in acrylic monomer.
According to a survey commissioned by all-natural beauty brand Kari Gran, American women care about what goes into their beauty products, but natural nail product ingredients are less of a priority.
From tosylamide/formaldehyde resin to stearalkonium bentonite, ingredient names can sound more like a top secret formula for NASA than a recipe for regular old nail polish. Each of these ingredients, however, has a purpose and plays a part in the overall performance of the polish.
When vitamin E was discovered, the biggest producer of soybean oil was Eastman Kodak, which used the oil in photo processing. After realizing it could extract alpha tocopherol from the oil waste, it began selling it to vitamin producers and remains a leading supplier to this day.
San Francisco’s newly passed Healthy Nail Salon Recognition ordinance is intended to address occupational health hazards among the city’s more than 200 nail salons and 1,800 nail technicians. This ordinance establishes a voluntary recognition program for salons that use polishes and top and base coats that are “three-free.”
Although glycerin has about the same food energy as table sugar, it does not raise blood sugar levels, nor does it cause cavities.
The ancient Egyptians used natural baking soda and incense as spiritual cleansers in purification ceremonies.
Women used to eat green papaya as a contraceptive.
Because it aids in pigment spread, the oil combats the “caking effect” in lipsticks.
Many licorice candies and sweets are actually flavored with the similar-tasting herb anise.
