A synthetic fragrance ester that adds a sweet, floral scent to products; generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
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 synthetic fragrance ester that adds a sweet, floral scent to products; generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic propellant that helps spray products work smoothly, but it has a high global warming potential and is being phased out in some regions.
Irritation
low
Source
synthetic
Hydrogen is a trendy antioxidant ingredient that may help calm skin, but its benefits in topical skincare are still being studied and are not yet proven in large human trials.
Irritation
low
Source
synthetic
Hydrogen Dimethicone is a gentle silicone that smooths and protects skin and hair without clogging pores or causing irritation.
Irritation
low
Source
synthetic
Film Former
Hydrogen Dimethicone/Octyl Silsesquioxane Copolymer
A gentle silicone polymer that helps makeup and sunscreen last longer without feeling heavy or greasy.
Irritation
low
Source
synthetic
A gentle silicone that smooths skin and hair without clogging pores, making it a reliable choice for most skin types.
Irritation
low
Source
synthetic
Hydrogen peroxide can kill bacteria and lighten skin, but it's harsh and can damage healthy skin cells, making it a risky choice for routine skincare.
Irritation
moderate
Source
synthetic
A lightweight silicone that helps products spread smoothly and feel silky, but may not suit those avoiding silicones.
Irritation
low
Source
synthetic
A synthetic polymer that helps makeup and sunscreen stay put longer, but offers no active skincare benefits.
Irritation
low
Source
synthetic
Film Former
HYDROGENATED ACETOPHENONE/OXYMETHYLENE COPOLYMER
A synthetic film former that helps products stay put and resist water, but offers no active skincare benefit.
Irritation
low
Source
synthetic
A gentle, non-greasy emollient that helps lock in moisture without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that mimics the skin's natural lipids to support hydration and barrier repair.
Irritation
low
Source
semi-synthetic
A stable, non-greasy emollient that locks in moisture and improves product texture, ideal for dry or sensitive skin.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that strengthens the skin barrier and is well-tolerated by most skin types.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that locks in moisture and gives products a smooth, velvety feel.
Irritation
low
Source
semi-synthetic
A gentle, stabilized version of chamomile-derived bisabolol that helps calm irritated skin without causing breakouts.
Irritation
low
Source
semi-synthetic
A gentle, nourishing emollient that helps reinforce the skin barrier without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, plant-based fatty alcohol that softens skin and improves product texture without common irritation.
Irritation
low
Source
natural
Film Former
HYDROGENATED BRASSICA CAMPESTRIS/ALEURITES FORDI OIL COPOLYMER
A gentle, plant-derived film former that helps makeup and skincare stay put without clogging pores or irritating skin.
Irritation
low
Source
semi-synthetic
Film Former
HYDROGENATED BUTADIENE/ISOPRENE/STYRENE COPOLYMER
A synthetic polymer that helps makeup last longer and resist water, but offers no skincare benefit.
Irritation
low
Source
synthetic
A gentle, plant-based emollient that softens skin and improves product feel without clogging pores.
Irritation
low
Source
natural
A gentle, processed root extract that may help calm skin and fight free radicals, but research is still limited.
Irritation
low
Source
semi-synthetic
A gentle, plant-based emollient that locks in moisture without clogging pores—great for dry or sensitive skin.
Irritation
low
Source
natural
A gentle, non-greasy emollient that locks in moisture and gives a silky feel — great for dry or sensitive skin.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that helps creams feel silky without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that gives a smooth, non-greasy feel and helps stabilize formulas.
Irritation
low
Source
semi-synthetic
A gentle, plant-based emollient that gives a silky, non-sticky feel to lipsticks and foundations while helping them stay put.
Irritation
low
Source
semi-synthetic
A reliable, low-irritation emulsifier that helps mix oil and water in your skincare products, but may feel slightly heavy on very oily skin.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived ingredient that helps thicken and stabilize formulas without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that improves product texture and feel without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that improves product texture and spreadability without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, PEG-modified castor oil derivative that helps mix water and oil, making it a reliable emulsifier for stable, non-greasy formulas.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that gives products a smooth, non-greasy feel and helps stabilize formulas.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that helps create a smooth, non-greasy feel in creams and lip products.
Irritation
low
Source
semi-synthetic
A gentle, non-greasy emollient that improves texture and spreadability without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that adds a smooth, non-greasy feel to products and helps stabilize formulas.
Irritation
low
Source
semi-synthetic
Film Former
HYDROGENATED CASTOR OIL/SEBACIC ACID COPOLYMER
A gentle film-former that helps products stay put and resist water without clogging pores.
Irritation
low
Source
semi-synthetic
Film Former
HYDROGENATED CASTOR OIL/SEBACIC ACID COPOLYMER CAPRATE/CAPRYLATE
A gentle film-forming ingredient that helps products stay put without feeling heavy or sticky.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emollient that softens skin with low irritation risk, though research on its unique benefits is still limited.
Irritation
low
Source
semi-synthetic
A gentle, coconut-derived emollient that softens skin without clogging pores, ideal for dry or sensitive skin.
Irritation
low
Source
natural
A gentle emollient that helps restore softness and smoothness to dry or rough skin without clogging pores.
Irritation
low
Source
semi-synthetic
A stable, lightweight emollient that softens skin without feeling heavy, ideal for sensitive and dry skin types.
Irritation
low
Source
natural
A gentle, non-greasy emollient that strengthens the skin barrier and is well-tolerated by most skin types.
Irritation
low
Source
semi-synthetic
Film Former
HYDROGENATED DICYCLOPENTADIENE/ISOPENTENE/ISOPRENE COPOLYMER
A synthetic polymer that helps makeup and skincare stay put longer by forming a flexible, water-resistant film on the skin.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that spreads easily and leaves skin feeling soft without clogging pores.
Irritation
low
Source
synthetic
A lightweight, synthetic emollient that improves product texture and leaves skin feeling silky without clogging pores.
Irritation
low
Source
synthetic
A next-generation, plant-derived emollient that feels lightweight and non-greasy, with a strong sustainability profile.
Irritation
low
Source
biotech
A gentle, plant-based emollient that softens skin and improves product texture without clogging pores.
Irritation
low
Source
natural
A gentle, plant-derived emollient that helps products feel silky and stay put without clogging pores.
Irritation
low
Source
natural
Film Former
HYDROGENATED DIMER DILINOLEIC ACID/HEXANEDIOL COPOLYMER
A gentle, plant-derived film former that helps makeup and sunscreen stay put without clogging pores or irritating skin.
Irritation
low
Source
semi-synthetic
A mild, plant-based emulsifier that keeps formulas stable and skin-friendly, ideal for sensitive skin.
Irritation
low
Source
semi-synthetic
A gentle, high-performance emulsifier that helps water and oil mix into a stable, creamy texture without irritation.
Irritation
low
Source
synthetic
A gentle, plant-derived emulsifier that helps create stable, smooth lotions and creams without common irritation.
Irritation
low
Source
semi-synthetic
A mild, plant-based emulsifier that helps create stable, creamy textures without common irritation.
Irritation
low
Source
semi-synthetic
A gentle, plant-derived emulsifier that helps oil and water mix, making creams and lotions smooth and stable without irritation.
Irritation
low
Source
semi-synthetic
Film Former
HYDROGENATED DIMER DILINOLEYL/DIMETHYLCARBONATE COPOLYMER
A silicone alternative that forms a flexible, breathable film on skin and hair, offering long-lasting hold and moisture without heavy buildup.
Irritation
low
Source
semi-synthetic
An effective emulsifier and antistatic agent, but may cause irritation or clog pores in sensitive individuals.
Irritation
moderate
Source
synthetic
A gentle, plant-derived emollient that improves product texture and skin feel without clogging pores or causing irritation.
Irritation
low
Source
semi-synthetic
A gentle, nourishing emollient that helps soften and smooth skin without clogging pores.
Irritation
low
Source
semi-synthetic
Fragrance Ingredient
HYDROGENATED ETHYLBICYCLOHEPTANE GUAIACOL
A synthetic fragrance ingredient that adds a warm, woody scent but has limited published safety data compared to more common fragrance materials.
Irritation
low
Source
synthetic