Beauty ingredients explained in plain English

A synthetic surfactant that effectively removes oil and dirt, but may be drying or irritating for sensitive skin.

A synthetic polymer that helps makeup last longer and resist water, but it's not a skincare active.

A synthetic polymer that helps products stay put and resist water, but offers no active skincare benefit.

A synthetic polymer that helps products stay put longer, especially in water-resistant formulas, with a good safety profile.

A lightweight, non-greasy emollient that improves product texture and spreadability without clogging pores.

An effective preservative and mild conditioner, but can be irritating for sensitive skin or eyes at higher concentrations.

A smart powder ingredient that helps control shine and improve the feel of makeup and skincare without clogging pores.

A lightweight synthetic emollient that helps soften and smooth skin without a greasy feel.

Didehydromenthane is a synthetic minty fragrance that can make products smell fresh, but it may cause irritation for sensitive skin.

Didehydropinane is a synthetic pine-scented fragrance ingredient that adds a fresh aroma but offers no skincare benefits and may irritate sensitive skin.

A gentle, non-greasy emollient that helps soften and smooth skin without clogging pores.

Dierucic acid is a synthetic fatty acid that helps soften and smooth the skin, but research on its long-term effects is limited.

An effective foam booster that has raised safety concerns due to possible diethanolamine (DEA) contamination; best used in rinse-off products if at all.

A synthetic fragrance ingredient with limited safety data; generally considered low risk at typical use levels but may cause sensitivity in some individuals.

A mild synthetic solvent that helps mix ingredients and thin out thick formulas, but offers no direct skin benefit.

A lightweight, non-greasy emollient that helps other ingredients absorb better and leaves skin feeling smooth.

A lightweight synthetic emollient that helps products glide on smoothly without greasiness, but it lacks extensive independent safety data.

A gentle, synthetic amino-acid derivative that may help soften the look of fine lines, but research is still early.

A lightweight, non-greasy emollient that helps products spread smoothly and leaves skin feeling soft without clogging pores.

Diethyl Aspartate is a gentle synthetic ingredient that helps skin feel smooth and conditioned, but research on its long-term benefits is still limited.

A synthetic ingredient that improves the feel of skincare products without adding heavy oils or silicones.

Diethyl carbonate is a gentle, fast-evaporating solvent that helps products spread and dry quickly, but it's not a star active ingredient.

Diethyl ethanolamine is a synthetic pH adjuster that helps keep products stable but may cause irritation for sensitive skin.

A gentle, water-binding amino acid derivative that helps keep skin hydrated and smooth without irritation.

A synthetic antioxidant that may help protect skin from environmental stress, but research is still early and benefits are not yet proven in human studies.

Diethyl Malate is a gentle skin-conditioning ester that helps products feel smooth and light, with low irritation potential.

Diethyl Malonate is a synthetic fragrance ingredient that adds a fruity, apple-like scent to products; it is generally considered safe at low concentrations but offers no skincare benefits.

Diethyl oxalate is a synthetic solvent with limited cosmetic benefits and potential skin irritation; it is rarely a primary active ingredient in skincare.

A gentle synthetic emollient that helps soften and smooth skin with a low risk of irritation.

Diethyl Phthalate is a synthetic plasticizer with a controversial safety profile; many brands have voluntarily phased it out due to consumer concerns, though regulatory bodies generally consider it safe at low levels.

A lightweight, non-greasy emollient that helps other ingredients spread smoothly and evaporates quickly, making it ideal for lightweight formulas.

Diethyl Succinate is a gentle solvent that helps dissolve other ingredients and improve product texture, with a low risk of irritation.

Diethyl Toluamide (DEET) is a proven insect repellent but is not a moisturizing or anti-aging skincare ingredient; use only for its intended purpose.

A synthetic ingredient that may help improve skin texture and tone, but research is still limited compared to more established actives.

A reliable, photostable UVA filter that helps protect skin from premature aging and sun damage without leaving a white cast.

A gentle film-forming polymer that helps products spread smoothly and create a light, flexible hold without heavy residue.

A mild conditioning ingredient that helps reduce static and improve softness, but may not suit extremely sensitive scalps.

A synthetic film-former that helps products stay put, but may cause irritation for sensitive skin or eyes.

A mild, coconut-derived conditioning agent that helps products spread evenly and leaves hair feeling soft without heavy buildup.

A gentle emulsifier that helps blend oil and water in skincare products, but its synthetic nature and limited research may give some pause.

A synthetic conditioning agent that can improve texture but may be irritating or clog pores for some skin types.

A synthetic fluorescent dye used for color in cosmetics; generally considered safe at low concentrations but may cause rare allergic reactions.

A synthetic scent ingredient that adds fragrance but offers no skincare benefits; generally safe at low levels but may cause sensitivity in some people.

A synthetic solvent and plasticizer that helps nail polishes and hair sprays apply smoothly and resist chipping, but it's not a hydrating or active skincare ingredient.

A lightweight synthetic emollient that helps products glide on smoothly without greasiness.

A lightweight synthetic emollient that gives a silky, non-greasy feel to products, with a low risk of irritation or clogging pores.

A pine-derived film former that helps makeup and sunscreens stay put, but may feel stiff or tacky on skin.

A safe, synthetic film-former that helps products stay put and resist water without clogging pores.

A synthetic ingredient that may help improve skin firmness and reduce fine lines, but research is still limited compared to more established peptides.

A synthetic pH adjuster that helps stabilize formulas but can be irritating at high concentrations.

A behind-the-scenes stabilizer that protects your products from metal contamination, but not a direct skin benefit ingredient.

Diethylheptadienal is a synthetic fragrance ingredient that adds a fresh scent but may cause irritation in sensitive individuals.

A lightweight synthetic emollient that helps products glide on smoothly, but may clog pores for some skin types.

A highly effective, photostable sunscreen ingredient that provides broad-spectrum protection without the greasy feel of some older filters.

A lightweight, non-greasy emollient that spreads easily and leaves a silky finish, ideal for oil-free formulations.

A lightweight, non-greasy emollient that helps products spread smoothly and leaves skin feeling soft without clogging pores.

A lightweight, non-greasy emollient that helps skin feel soft and smooth without clogging pores.

A lightweight, non-greasy emollient that helps products glide on smoothly without clogging pores.

A synthetic film-former that helps sunscreen and makeup stay put longer, but it's not a standout active ingredient.

A lightweight synthetic emollient that helps products spread smoothly without clogging pores or feeling heavy.