Beauty ingredients explained in plain English

A gentle, lanolin-derived emollient that softens and smooths skin without the heavy feel of pure lanolin.

A rich, protective emollient derived from sheep's wool that locks in moisture but may clog pores for some.

Lanolinamide DEA helps create rich lather and stabilize mixtures, but it may be mildly irritating or comedogenic for sensitive or acne-prone skin.

Lanosterol is a skin-friendly sterol that supports the skin barrier and helps keep moisture in, making it a gentle addition to moisturizing products.

A gentle, antioxidant-rich plant extract that may help protect skin from environmental stress, though human studies are limited.

Lantana camara extract offers antioxidant benefits but is less studied than other plant extracts and may cause irritation in sensitive skin.

Lanthanum Chloride is a rare earth salt that may help calm skin, but it's not well-studied in cosmetics and is used at very low levels.

Lapachone is a natural antioxidant that may help protect skin from environmental stress, but research in cosmetics is still limited.

Lapis lazuli adds a vivid blue hue to cosmetics but offers no proven skincare benefits beyond decoration.

Lapis lazuli extract adds a natural blue tint and may offer mild antioxidant benefits, but scientific research on its skincare effects is very limited.

A gentle, fatty-acid-rich seed oil that helps soften and condition skin, though research on its specific benefits is still limited.

A gentle botanical extract with traditional use for soothing skin, but limited modern research to back strong claims.

Lapyrium chloride is a synthetic surfactant that helps cleanse and condition hair and skin, but it may cause mild irritation in sensitive individuals.

A gentle plant extract that may help protect skin from environmental stress, though research is still early.

A gentle plant extract with antioxidant potential, but research on its specific skin benefits is still limited.

A gentle, plant-derived antioxidant that may help protect skin from environmental stress, though research is still early.

A gentle, plant-derived antioxidant that may help calm skin and fight environmental stress, though research is still limited.

A gentle, plant-derived antioxidant extract that may help calm skin and fight free radical damage, though research is still limited.

Lard is a traditional emollient that softens skin but may clog pores for some people.

A gentle plant extract with antioxidant potential, but research is still early — it's a nice-to-have rather than a must-have ingredient.

A gentle botanical extract that may help calm irritated skin and provide antioxidant support, though research is limited.

A gentle botanical extract that may help calm irritated skin and provide antioxidant protection, though human studies are limited.

A gentle, antioxidant-rich flower extract that helps calm irritated skin and provides mild protection from environmental stress.

A mild, fragrant floral water that may help calm sensitive skin, but its benefits are largely anecdotal and not backed by strong clinical evidence.

A gentle, plant-based ingredient that may help calm irritated skin and provide antioxidant protection, though human studies are limited.

A plant-based antioxidant that may help protect skin from environmental stress, but research is still early and some related species have raised safety concerns.

A plant extract with antioxidant potential, but limited human studies and a history of oral safety concerns mean it's best used cautiously in low concentrations.

A gentle, plant-based antioxidant that may help shield skin from pollution and UV damage, though human studies are limited.

Laudanosine is a rare plant alkaloid with theoretical antioxidant benefits, but it lacks robust safety and efficacy data for cosmetic use.

Lauraldehyde is a synthetic fragrance ingredient that adds scent but offers no skincare benefits and may cause irritation for sensitive skin.

A synthetic scent ingredient that adds a pleasant fragrance but offers no skincare benefits and may cause sensitivity in some people.

Lauralkonium Bromide is an effective preservative but can be irritating for sensitive skin, especially at higher concentrations.

An effective preservative but can be irritating for sensitive skin, especially at higher concentrations.

Lauramide helps create rich lather and thicken cleansers, but may cause mild irritation for sensitive skin.

Lauramide DEA is an effective foam booster but has moderate irritation potential and environmental concerns, making it less popular in modern formulations.

Lauramide DIPA helps create rich lather in cleansers but may be mildly irritating for sensitive skin.

Lauramide MEA helps create rich lather and thick texture in cleansers, but may cause mild irritation for sensitive skin.

Lauramide MIPA helps create rich lather in cleansers but may cause irritation for sensitive skin.

An effective foam booster and thickener, but its potential to form nitrosamines makes it a controversial choice in modern formulations.

A synthetic hair conditioning agent that helps detangle and soften hair without heavy buildup, but has limited research on long-term effects.

A gentle, coconut-based surfactant that helps cleansers lather without stripping the skin.

A mild conditioning agent that helps detangle hair and soften skin, but may cause irritation for sensitive types at high concentrations.

A gentle surfactant that helps cleansers foam without stripping the skin, making it a good choice for sensitive or dry skin types.

A gentle, coconut-derived surfactant that cleans without stripping the skin, making it ideal for sensitive or dry skin types.

A gentle conditioning ingredient that helps detangle hair and reduce static without heavy buildup.

A gentle surfactant that helps create rich lather and thicken formulas without stripping the skin.

A gentle surfactant that helps create rich foam and stabilize formulas, but may cause mild irritation in sensitive skin at high concentrations.

A mild cleansing agent that helps foam and rinse away dirt, but may cause irritation for very sensitive skin.

A gentle, amino-acid-based surfactant that cleanses without stripping the skin, making it ideal for sensitive or dry skin types.

Lauraminopropylamine is a synthetic surfactant that helps cleanse and condition hair and skin, but it may cause irritation in sensitive individuals at higher concentrations.

A gentle conditioning ingredient that helps detangle hair and soften skin without heavy buildup, suitable for sensitive types.

A gentle, conditioning cleanser that helps hair and skin feel soft without stripping natural oils.

A gentle, plant-derived conditioning agent that adds softness and manageability to hair without heavy buildup.

A gentle, protein-based conditioning ingredient that helps smooth hair and lightly moisturize skin without heavy buildup.

A gentle conditioning ingredient that helps smooth hair and reduce static, but offers minimal skin benefits beyond temporary softness.

A gentle, modified keratin that helps smooth and strengthen hair without the harshness of unmodified proteins.

A gentle, modified silk protein that adds softness and shine to hair and skin without heavy buildup.

A mild, sugar-based conditioning ingredient that detangles hair and softens skin without heavy buildup.

A gentle, starch-based conditioning agent that adds volume and softness without heavy buildup.

A gentle, sugar-derived conditioning ingredient that helps hair feel soft and smooth without heavy buildup.