A gentle, plant-derived antioxidant that helps protect skin from environmental stress while providing mild conditioning benefits.
Irritation
low
Source
natural
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 gentle, plant-derived antioxidant that helps protect skin from environmental stress while providing mild conditioning benefits.
Irritation
low
Source
natural
A lightweight, antioxidant-rich oil that hydrates and protects skin without clogging pores.
Irritation
low
Source
natural
Buriti pulp powder is a gentle, antioxidant-rich ingredient that helps nourish and hydrate skin without irritation.
Irritation
low
Source
natural
A gentle, semi-synthetic emollient derived from buriti seed oil that helps soften and condition skin without clogging pores.
Irritation
low
Source
semi-synthetic
A skin-friendly, plant-based emulsifier that hydrates and stabilizes formulas without clogging pores or causing irritation.
Irritation
low
Source
semi-synthetic
A gentle botanical extract that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
A gentle botanical root extract with soothing and antioxidant potential, best for sensitive or irritated skin.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant and soothing potential, but research is limited and mostly traditional.
Irritation
low
Source
natural
A gentle, plant-derived sap that may help calm irritated skin and provide antioxidant protection, though research is still early.
Irritation
low
Source
natural
A traditional botanical extract with potential soothing and antioxidant benefits, but limited modern research and a moderate risk of skin irritation for sensitive individuals.
Irritation
moderate
Source
natural
A gentle, plant-based resin extract with antioxidant and soothing potential, though research is still emerging.
Irritation
low
Source
natural
A gentle, aromatic oil from the Palo Santo tree that may offer antioxidant benefits and a pleasant scent, but research is limited.
Irritation
low
Source
natural
A fragrant wood oil with potential soothing benefits, but limited research and a risk of skin irritation for sensitive individuals.
Irritation
moderate
Source
natural
A gentle bark extract with antioxidant and soothing potential, though research on its cosmetic benefits is still limited.
Irritation
low
Source
natural
Bursera Wood Oil adds a woody, balsamic scent to products but has limited research on skincare benefits and may cause irritation in sensitive individuals.
Irritation
moderate
Source
natural
A gentle, plant-based antioxidant that may help calm skin and fight free radical damage, but research is still early.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is limited and benefits are not yet well-established in human skin.
Irritation
low
Source
natural
A synthetic rubber that helps makeup last longer and resist water, but offers no skin benefit.
Irritation
low
Source
synthetic
Butane is a safe and widely used propellant that helps deliver products like sprays and foams, but it offers no direct skin benefit.
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 crosslinking agent that strengthens nail coatings but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A safe synthetic film-former that helps products stay put and resist water, but offers no active skincare benefits.
Irritation
low
Source
synthetic
A synthetic film former that helps makeup last longer and resist water, but may feel tight or dry on sensitive skin.
Irritation
low
Source
synthetic
A gentle botanical extract that helps reduce puffiness and support skin firmness, especially around the eyes.
Irritation
low
Source
natural
A gentle, antioxidant-rich flower extract that may help calm skin and fight free radical damage, though research is still emerging.
Irritation
low
Source
natural
A botanical extract with antioxidant potential and traditional use, but modern skincare evidence is still limited.
Irritation
low
Source
natural
A plant root extract with traditional use and early research suggesting antioxidant benefits, but clinical skincare evidence is still limited.
Irritation
low
Source
natural
A traditional botanical root powder with emerging antioxidant potential, but human skincare studies are limited.
Irritation
low
Source
natural
A synthetic film-former that helps products stay put longer, but may feel tight or heavy on sensitive or dry skin.
Irritation
low
Source
synthetic
A synthetic polymer that gives cosmetics a smooth, water-resistant finish, but may feel heavy or clog pores for some skin types.
Irritation
low
Source
synthetic
A synthetic film-former that helps makeup last longer and resist water, but offers no skincare benefit.
Irritation
low
Source
synthetic
A synthetic amino acid derivative that may help support skin renewal, but research is still early and it is not a proven active.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds scent but offers no skincare benefits; generally safe at low levels but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient with limited safety data; best for those who tolerate synthetic fragrances well.
Irritation
moderate
Source
synthetic
A synthetic fragrance compound that adds a warm, woody scent; generally considered safe at low levels but offers no skincare benefit.
Irritation
low
Source
synthetic
A mild synthetic emollient that helps products spread smoothly and leaves skin feeling soft, but offers no active skincare benefits.
Irritation
low
Source
synthetic
Buteth-3 is a synthetic helper ingredient that blends oil and water, but it may cause mild irritation for sensitive skin.
Irritation
moderate
Source
synthetic
A mild synthetic cleanser that helps remove impurities but may cause slight dryness for sensitive skin.
Irritation
moderate
Source
synthetic
Butoxy Chitosan is a gentle film-forming ingredient that helps lock in moisture and gives a smooth, plumping feel, but research on its long-term benefits is still limited.
Irritation
low
Source
semi-synthetic
A gentle silicone that coats hair to reduce tangles and add shine, but may build up over time with infrequent washing.
Irritation
low
Source
synthetic
Butoxydiglycol is a synthetic solvent that helps ingredients blend together, but it can be a mild irritant for sensitive skin.
Irritation
moderate
Source
synthetic
Butoxyethanol is a synthetic solvent that can help dissolve other ingredients, but it carries moderate irritation and toxicity concerns, making it less common in modern skincare.
Irritation
moderate
Source
synthetic
Butoxyethyl Nicotinate is a synthetic ingredient that temporarily increases blood flow to the skin, often used in anti-cellulite and warming products, but it can cause irritation and redness in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic emollient that makes products feel silky, but may clog pores for some skin types.
Irritation
low
Source
synthetic
Viscosity Controlling
Butoxyhydroxypropyl Cetyl Hydroxyethylcellulose
A gentle, semi-synthetic thickener that helps create a smooth, non-greasy texture in skincare products.
Irritation
low
Source
semi-synthetic
An effective synthetic cleanser that can be drying for sensitive skin, but is generally safe in well-formulated products.
Irritation
moderate
Source
synthetic
A synthetic surfactant that effectively cleanses but may be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
A classic natural moisturizer that softens skin but may clog pores for some people.
Irritation
low
Source
natural
A lightweight, plant-based emollient that hydrates and softens skin without clogging pores.
Irritation
low
Source
semi-synthetic
A gentle milk-derived powder that softens and conditions skin without heavy oils.
Irritation
low
Source
natural
Butterbur leaf extract may help calm irritated skin and fight free radicals, but research on topical use is still limited.
Irritation
low
Source
natural
Butterbur root extract is a gentle botanical with potential soothing and antioxidant benefits, but research in topical skincare is still emerging.
Irritation
low
Source
natural
Butterbur root powder is a gentle botanical with potential soothing and antioxidant benefits, but research in topical skincare is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract that may help calm skin and fight environmental stress, though research is still early.
Irritation
low
Source
natural
A mild, milk-based exfoliant that gently sloughs dead skin cells and supports a smoother, more even complexion.
Irritation
low
Source
natural
A gentle, stable vitamin C alternative that brightens skin without the irritation or instability of pure ascorbic acid.
Irritation
low
Source
semi-synthetic
A synthetic ester that adds a fruity, apple-like scent to products; generally considered safe at low levels used in cosmetics.
Irritation
low
Source
synthetic
A gentle, stable vitamin C derivative that brightens skin and fights free radicals without the irritation of pure ascorbic acid.
Irritation
low
Source
semi-synthetic
Butyl acetate helps nail polish glide on and dry quickly, but it can be drying or irritating for sensitive skin or frequent use.
Irritation
moderate
Source
synthetic
A gentle, non-greasy emollient derived from castor oil that helps products glide on smoothly and keeps skin feeling soft.
Irritation
low
Source
semi-synthetic