A mild, coconut-derived conditioning agent that helps products spread evenly and leaves hair feeling soft without heavy buildup.
Irritation
low
Source
semi-synthetic
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
A mild, coconut-derived conditioning agent that helps products spread evenly and leaves hair feeling soft without heavy buildup.
Irritation
low
Source
semi-synthetic
A gentle emulsifier that helps blend oil and water in skincare products, but its synthetic nature and limited research may give some pause.
Irritation
low
Source
semi-synthetic
A synthetic conditioning agent that can improve texture but may be irritating or clog pores for some skin types.
Irritation
moderate
Source
synthetic
A synthetic fluorescent dye used for color in cosmetics; generally considered safe at low concentrations but may cause rare allergic reactions.
Irritation
low
Source
synthetic
A synthetic scent ingredient that adds fragrance but offers no skincare benefits; generally safe at low levels but may cause sensitivity in some people.
Irritation
low
Source
synthetic
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.
Irritation
low
Source
synthetic
Emollient
DIETHYLENE GLYCOL DIETHYLHEXANOATE/DIISONONANOATE
A lightweight synthetic emollient that helps products glide on smoothly without greasiness.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that gives a silky, non-greasy feel to products, with a low risk of irritation or clogging pores.
Irritation
low
Source
synthetic
A pine-derived film former that helps makeup and sunscreens stay put, but may feel stiff or tacky on skin.
Irritation
low
Source
semi-synthetic
Film Former
DIETHYLENE GLYCOL/DIMER DILINOLEIC ACID COPOLYMER
A safe, synthetic film-former that helps products stay put and resist water without clogging pores.
Irritation
low
Source
synthetic
Film Former
DIETHYLENE GLYCOLAMINE/EPICHLOROHYDRIN/PIPERAZINE COPOLYMER
A synthetic polymer that helps hold hairstyles in place by forming a flexible film on hair, but it may cause buildup or stiffness with heavy use.
Irritation
low
Source
synthetic
A synthetic ingredient that may help improve skin firmness and reduce fine lines, but research is still limited compared to more established peptides.
Irritation
low
Source
synthetic
A synthetic pH adjuster that helps stabilize formulas but can be irritating at high concentrations.
Irritation
moderate
Source
synthetic
Chelating Agent
DIETHYLENETRIAMINE PENTAMETHYLENE PHOSPHONIC ACID
A behind-the-scenes stabilizer that protects your products from metal contamination, but not a direct skin benefit ingredient.
Irritation
low
Source
synthetic
Diethylheptadienal is a synthetic fragrance ingredient that adds a fresh scent but may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A lightweight synthetic emollient that helps products glide on smoothly, but may clog pores for some skin types.
Irritation
low
Source
synthetic
A highly effective, photostable sunscreen ingredient that provides broad-spectrum protection without the greasy feel of some older filters.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that spreads easily and leaves a silky finish, ideal for oil-free formulations.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that helps products spread smoothly and leaves skin feeling soft without clogging pores.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that helps skin feel soft and smooth without clogging pores.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that helps products glide on smoothly without clogging pores.
Irritation
low
Source
synthetic
A synthetic film-former that helps sunscreen and makeup stay put longer, but it's not a standout active ingredient.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that helps products spread smoothly without clogging pores or feeling heavy.
Irritation
low
Source
synthetic
A silky, non-greasy emollient that improves spreadability and leaves skin feeling smooth without clogging pores.
Irritation
low
Source
synthetic
A lightweight, silky emollient that helps products spread smoothly without feeling heavy or greasy.
Irritation
low
Source
synthetic
A synthetic emollient that helps sunscreen formulas spread evenly and resist water, but it's less common and less studied than traditional alternatives.
Irritation
low
Source
synthetic
A well-tolerated, lightweight emollient that improves product feel and skin softness with a low risk of irritation or clogged pores.
Irritation
low
Source
synthetic
An effective synthetic cleanser that helps remove oil and dirt, but may be drying or irritating for sensitive skin types.
Irritation
moderate
Source
synthetic
A gentle, lightweight emollient that improves product texture and leaves skin feeling soft without clogging pores.
Irritation
low
Source
synthetic
A synthetic antioxidant that helps shield skin from pollution and UV damage, often used in anti-aging formulas.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that helps products glide on smoothly without greasiness, but it's not a hydrating or active ingredient.
Irritation
low
Source
synthetic
Diethyllutidinate is a synthetic stabilizer that may help other ingredients work better, but research on its direct skin benefits is still limited.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that helps soften skin and improve product texture with a low risk of irritation.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds scent but offers no skin benefit; safe at low levels but may cause sensitivity in some people.
Irritation
low
Source
synthetic
A synthetic fragrance compound that adds a nutty, roasted note to products; generally safe at low levels but offers no skincare benefit.
Irritation
low
Source
synthetic
Diethylquinoline is a synthetic fragrance compound with limited safety data; it may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Skin Conditioning Agent
DIFLUOROPHENYL PROPYLCYCLOPENTENE OXIME
A synthetic ingredient with limited research; may offer antioxidant benefits but lacks strong evidence for efficacy or safety.
Irritation
low
Source
synthetic
Emollient
DIGALACTOSYL GLYCERYL LINOLEATE/PALMITATE/OLEATE
A gentle, multi-fatty-acid emollient that helps soften and smooth skin while supporting the skin barrier.
Irritation
low
Source
semi-synthetic
A lab-made peptide that may help firm skin and soften lines, but research is still early.
Irritation
low
Source
synthetic
Digalloyl Trioleate is a gentle emollient with antioxidant potential, but research on its efficacy in skincare is still limited.
Irritation
low
Source
synthetic
A gentle red algae extract that may help calm irritation and provide light hydration, though research is still emerging.
Irritation
low
Source
natural
A gentle, stabilized antioxidant that helps brighten skin and protect against environmental damage without the irritation of pure gallic acid.
Irritation
low
Source
semi-synthetic
A lightweight, water-loving emollient that hydrates and softens skin without clogging pores or feeling heavy.
Irritation
low
Source
semi-synthetic
Diglycerin is a gentle, effective humectant that hydrates skin without the sticky feel of glycerin, making it a great option for lightweight moisturizers.
Irritation
low
Source
synthetic
Film Former
DIGLYCERIN/DILINOLEIC ACID/HYDROXYSTEARIC ACID COPOLYMER
A gentle film-forming polymer that improves water resistance and texture in sunscreens and lotions without clogging pores.
Irritation
low
Source
semi-synthetic
Emollient
DIGLYCERYL ADIPATE/CAPRATE/CAPRYLATE/HYDROXYSTEARATE/ISOSTEARATE/STEARATE
A gentle, multi-chain ester that softens skin and improves product feel without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, lightweight emollient that hydrates and softens skin without clogging pores, suitable for most skin types.
Irritation
low
Source
semi-synthetic
A lightweight, non-greasy emollient that helps soften skin and improve product texture without clogging pores.
Irritation
low
Source
synthetic
A mild, non-irritating emulsifier that helps create stable, creamy textures while also softening the skin.
Irritation
low
Source
semi-synthetic
Diglycol Guanidine Succinate is a synthetic conditioning agent that helps improve the feel and mildness of skincare and haircare products, but research on its long-term effects is limited.
Irritation
low
Source
synthetic
A synthetic polymer that helps products stay put longer, but offers no active skincare benefit.
Irritation
low
Source
synthetic
A sugar-modified peptide that may help firm skin and soften fine lines with low irritation potential.
Irritation
low
Source
synthetic
An effective synthetic cleanser that can be drying for some skin types, but generally safe and well-studied.
Irritation
moderate
Source
synthetic
A silky, non-greasy emollient that hydrates and smooths skin while improving product texture.
Irritation
low
Source
semi-synthetic
A silky, non-greasy emollient that hydrates and softens skin with a lightweight feel, suitable for most skin types.
Irritation
low
Source
natural
A silky, lightweight emollient that hydrates without clogging pores, ideal for oily and combination skin.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that softens skin without clogging pores, ideal for oily and combination skin types.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that softens skin without clogging pores, ideal for oily and combination skin types.
Irritation
low
Source
synthetic
An effective cleansing agent that can be drying for some skin types, but generally safe when formulated properly.
Irritation
moderate
Source
synthetic
A silky, non-greasy emollient that hydrates and softens skin without clogging pores.
Irritation
low
Source
natural