A synthetic antioxidant that may help protect skin from environmental stress, but research is still limited.
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 antioxidant that may help protect skin from environmental stress, but research is still limited.
Irritation
low
Source
synthetic
A synthetic antioxidant that helps shield skin from pollution and UV damage while supporting a brighter, more even complexion.
Irritation
low
Source
synthetic
DHA is the gold standard for sunless tanning, providing a natural-looking tan without UV exposure, but requires careful application to avoid streaks and uneven color.
Irritation
low
Source
synthetic
DHA is the most common active ingredient in sunless tanners, providing a temporary tan without UV exposure.
Irritation
low
Source
synthetic
Anti-aging agent
DIHYDROXYBENZYL ADAMANTANYLDIMETHOXYBENZAMIDE
A lab-made molecule that aims to mimic the skin-firming effects of certain peptides, but human research is still limited.
Irritation
low
Source
synthetic
A synthetic brightener that targets uneven skin tone and dark spots with low irritation potential.
Irritation
low
Source
synthetic
A synthetic brightening compound with early evidence for reducing pigmentation, but limited long-term safety data.
Irritation
moderate
Source
synthetic
A gentle antioxidant from the chalcone family that may help calm skin and defend against pollution and UV damage.
Irritation
low
Source
natural
Surfactant
DIHYDROXYETHYL C12-15 ALKOXYPROPYLAMINE OXIDE
A gentle surfactant that helps create a rich, stable foam while being less stripping than traditional sulfates.
Irritation
low
Source
synthetic
A gentle surfactant that helps create a rich foam while being less stripping than traditional sulfates.
Irritation
low
Source
synthetic
A gentle surfactant that helps create a rich, creamy foam while being less stripping than traditional sulfates.
Irritation
low
Source
synthetic
A gentle, coconut-derived cleansing ingredient that helps remove dirt and oil without stripping the skin.
Irritation
low
Source
semi-synthetic
A gentle, coconut-derived surfactant that helps create a rich lather while being less stripping than traditional sulfates.
Irritation
low
Source
natural
A gentle, coconut-derived surfactant that boosts foam and cleanses without stripping the skin, making it a good choice for sensitive skin.
Irritation
low
Source
semi-synthetic
A gentle, amino-acid-based surfactant that cleanses effectively without stripping the skin, making it a great choice for sensitive or dry skin types.
Irritation
low
Source
semi-synthetic
A mild, plant-derived cleansing ingredient that effectively removes dirt and oil without stripping the skin.
Irritation
low
Source
natural
A gentle emulsifier and conditioner from soybean oil that helps blend oils and water while softening hair and skin, but may be too heavy for oily or acne-prone types.
Irritation
low
Source
semi-synthetic
A gentle, conditioning surfactant that helps create rich foam without stripping the skin or hair.
Irritation
low
Source
semi-synthetic
A mild, effective conditioning agent that leaves skin and hair feeling soft without heavy buildup.
Irritation
low
Source
semi-synthetic
A mild, tallow-derived surfactant that cleanses without stripping, but may raise concerns for those avoiding animal-derived ingredients.
Irritation
low
Source
semi-synthetic
A gentle conditioning ingredient that softens hair and skin, but may be too heavy for oily or acne-prone skin.
Irritation
low
Source
semi-synthetic
An effective cleanser and antistatic agent from tallow, but may be drying or irritating for sensitive skin.
Irritation
moderate
Source
semi-synthetic
A gentle conditioning ingredient that softens hair but may be too heavy for oily scalps or acne-prone skin.
Irritation
low
Source
semi-synthetic
An effective foam booster and surfactant, but may cause irritation for sensitive skin and raises ethical concerns due to its animal-derived origin.
Irritation
moderate
Source
semi-synthetic
A synthetic film-forming polymer that helps products stay put, but its animal-derived origin may not suit everyone.
Irritation
low
Source
synthetic
Hair Conditioning Agent
DIHYDROXYETHYLAMINO HYDROXYPROPYL OLEATE
A mild, plant-derived conditioning agent that helps detangle hair and soften skin without heavy buildup.
Irritation
low
Source
semi-synthetic
A synthetic dye ingredient used in permanent hair color; it can be effective but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Dihydroxyindole is a natural melanin precursor that may help enhance pigmentation and provide antioxidant benefits, but its cosmetic use is still emerging and not widely studied in humans.
Irritation
low
Source
natural
A synthetic hair dye intermediate that helps create rich, lasting color but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Skin Conditioning Agent
DIHYDROXYISOPROPYL CAPRYLOYLCAPRYLAMIDE
A gentle synthetic ingredient that helps condition skin and improve the feel of cleansers without stripping moisture.
Irritation
low
Source
synthetic
A mild synthetic surfactant that helps create rich foam and improve cleansing texture, generally well-tolerated by most skin types.
Irritation
low
Source
synthetic
A gentle, synthetic ceramide that strengthens the skin barrier and locks in moisture without irritation.
Irritation
low
Source
synthetic
A gentle synthetic antioxidant that helps brighten skin and fight signs of aging, with a good safety profile for most skin types.
Irritation
low
Source
synthetic
A gentle antioxidant that helps calm redness and protect skin from environmental stress.
Irritation
low
Source
natural
A gentle, water-loving amino acid derivative that helps attract moisture to the skin and may support a healthier barrier.
Irritation
low
Source
semi-synthetic
A gentle amino acid derivative that helps reinforce hair structure, making strands feel stronger and less prone to breakage.
Irritation
low
Source
semi-synthetic
Eyelash growth enhancer
Dihydroxypropyl Dehydrolatanoprostamide
A synthetic prostaglandin analog that can boost eyelash growth but may cause irritation and requires careful use.
Irritation
moderate
Source
synthetic
Eyelash growth stimulant
DIHYDROXYPROPYL DIDEHYDROLATANOPROSTAMIDE
A synthetic prostaglandin analog that can enhance eyelash and brow growth but carries risks of irritation and potential eye-area side effects.
Irritation
moderate
Source
synthetic
A gentle, modified milk protein that forms a protective film on hair and skin to lock in moisture and smooth texture.
Irritation
low
Source
semi-synthetic
A gentle, low-irritation surfactant that helps create a rich lather and improve cleansing without stripping the skin.
Irritation
low
Source
semi-synthetic
Antistatic Agent
DIHYDROXYPROPYL PEG-10 STEARAMMONIUM CHLORIDE
A synthetic conditioning ingredient that helps detangle and soften hair, but may not suit very fine or easily weighed-down hair types.
Irritation
low
Source
synthetic
Antistatic Agent
DIHYDROXYPROPYL PEG-5 LINOLEAMMONIUM CHLORIDE
A mild, water-soluble conditioning ingredient that helps reduce static and improve hair manageability without weighing hair down.
Irritation
low
Source
semi-synthetic
A modern, non-sticky humectant that pulls water into the skin without the tackiness of glycerin.
Irritation
low
Source
semi-synthetic
A gentle antistatic and conditioning ingredient that helps reduce flyaways and improve hair feel without heavy buildup.
Irritation
low
Source
synthetic
An effective preservative but can be a skin sensitizer, so it's best suited for rinse-off products or low concentrations.
Irritation
moderate
Source
synthetic
A silky, non-greasy emollient that feels lightweight on skin and helps other ingredients spread evenly.
Irritation
low
Source
semi-synthetic
A silky, non-greasy emollient that softens skin without clogging pores, ideal for lightweight formulas.
Irritation
low
Source
natural
A lightweight synthetic emollient that helps products spread smoothly without a greasy feel, generally considered safe for most skin types.
Irritation
low
Source
synthetic
A synthetic pigment that delivers vivid, stable color but has limited research on long-term skin effects.
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 synthetic solvent used mainly in fragrances; not a primary skincare active and may cause irritation at higher levels.
Irritation
moderate
Source
synthetic
A lightweight synthetic emollient that helps products spread smoothly and leaves skin feeling soft without greasiness.
Irritation
low
Source
synthetic
Diisobutyl Oxalate is a synthetic solvent that helps dissolve other ingredients and creates a silky feel, but it has limited research on long-term skin effects.
Irritation
low
Source
synthetic
A strong synthetic cleanser that effectively removes oil and dirt but may be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
A lightweight, non-greasy emollient that helps products glide on smoothly without clogging pores.
Irritation
low
Source
synthetic
A lightweight synthetic oil that softens skin without clogging pores, commonly used to improve product texture.
Irritation
low
Source
synthetic
A lightweight, non-greasy emollient that hydrates and smooths skin without clogging pores.
Irritation
low
Source
synthetic
A lightweight synthetic emollient that softens skin without clogging pores, commonly used to improve product texture and spreadability.
Irritation
low
Source
synthetic
Diisodecyl phthalate is a plasticizer with limited cosmetic use; it is not a typical skincare ingredient and is best avoided due to potential health concerns.
Irritation
low
Source
synthetic
Diisoheptyl Phthalate is a synthetic plasticizer with no proven skincare benefit and potential health concerns; it is best avoided in leave-on products.
Irritation
moderate
Source
synthetic