Beauty ingredients explained in plain English

A non-greasy emollient that improves product texture and feel, generally well-tolerated by most skin types.

A silky, plant-derived emollient that hydrates without clogging pores, ideal for sensitive and oily skin types.

A mild synthetic emulsifier that helps mix water and oil in creams and cleansers, generally considered safe for most skin types.

Dicetearyl Succinate is a gentle, non-greasy emollient that helps skin feel soft and smooth without clogging pores.

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

A synthetic peptide that may help reduce the appearance of fine lines and support skin firmness, but more human studies are needed.

A gentle, synthetic emollient that helps soften skin and improve product texture without common irritation or clogging concerns.

Dicetyl Phosphate is a gentle emulsifier that helps create stable, creamy textures in skincare without common irritation.

Dicetyl Thiodipropionate is a gentle emollient that also helps protect oils in formulas from going rancid, making it a useful stabilizer in many moisturizing products.

A gentle synthetic conditioner that reduces static and softens hair without heavy buildup, but may not suit very fine or oily hair types.

A synthetic preservative that helps keep products fresh but may cause irritation for sensitive skin.

A synthetic preservative that helps keep products fresh but may cause mild irritation in sensitive individuals.

Dichloromethane is a strong solvent with significant safety concerns; it is not recommended for routine skincare and is largely banned or restricted in cosmetic products.

Dichlorophene is an effective preservative but can be irritating for sensitive skin and is less common in modern formulations.

An effective preservative with a moderate irritation risk; best for those without sensitive skin.

A gentle synthetic conditioner that helps soften hair and skin without heavy buildup.

Dicocodimonium Chloride is a synthetic conditioning agent that reduces static and softens hair, but may cause irritation or clog pores in sensitive individuals.

A gentle, plant-derived emollient that softens skin and improves product texture without clogging pores.

A mild, coconut-derived conditioning ingredient that smooths hair and reduces static without weighing it down.

A gentle fern extract that may help calm skin and fight free radicals, though research is still early.

A gentle, algae-derived oil that helps moisturize and protect the skin, but research on its specific benefits is still emerging.

A gentle seaweed extract that may help calm skin and fight free radical damage, though research is still early.

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.