A gentle, plant-based antioxidant that may help protect skin from environmental stress, though research is still early.
Irritation
low
Source
biotech
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-based antioxidant that may help protect skin from environmental stress, though research is still early.
Irritation
low
Source
biotech
A gentle, plant-derived antioxidant that may help protect skin from environmental stress, though human studies are limited.
Irritation
low
Source
biotech
A gentle, antioxidant-rich flower extract from the Himalayas that may help soothe and protect skin, though research is still early.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and fight free radicals, but research is still limited.
Irritation
low
Source
natural
A gentle, plant-derived ingredient that may help calm irritation and provide light hydration, but research on its specific benefits is still limited.
Irritation
low
Source
natural
A mild botanical extract that may help calm skin and provide antioxidant protection, but research is limited.
Irritation
low
Source
natural
A gentle, fragrant flower oil that adds a light emollient feel and a subtle floral scent, but research on its specific skin benefits is limited.
Irritation
low
Source
natural
Lily Hybrid Extract is a gentle botanical ingredient that may help soothe skin and provide antioxidant protection, but research is limited.
Irritation
low
Source
natural
A gentle, lab-grown plant extract that may help protect skin from environmental stress, but research is still early.
Irritation
low
Source
biotech
A fragrant flower extract with mild antioxidant potential, but its main role in skincare is scent—and it can be irritating for sensitive skin.
Irritation
moderate
Source
natural
A gentle botanical extract with antioxidant potential, but limited human studies and a known skin sensitization risk in some individuals.
Irritation
moderate
Source
natural
A gentle, antioxidant-rich plant extract that may help calm skin and fight free radical damage, though research is still emerging.
Irritation
low
Source
natural
A gentle botanical extract blend that may help calm skin and fight free radicals, but research is limited.
Irritation
low
Source
natural
A gentle botanical blend that may help calm skin and provide antioxidant support, though research is limited.
Irritation
low
Source
natural
A gentle botanical extract that adds a light citrus scent and a touch of antioxidant support, but research on its direct skin benefits is limited.
Irritation
low
Source
natural
Lime fruit extract adds a fresh citrus scent and mild antioxidant benefits, but its potential for skin irritation means it's best for those without sensitive skin.
Irritation
moderate
Source
natural
Lime oil adds a fresh citrus scent and some antioxidant activity, but it can be irritating for sensitive skin and may increase sun sensitivity.
Irritation
moderate
Source
natural
Lime fruit water offers a light, refreshing feel and mild astringent action, but its natural acidity and phototoxic potential require careful formulation.
Irritation
moderate
Source
natural
Lime leaf extract offers antioxidant benefits and a light astringent effect, but may cause irritation in sensitive skin due to natural citrus compounds.
Irritation
moderate
Source
natural
Lime peel oil adds a bright citrus scent to products but can be irritating for sensitive skin and increases sun sensitivity.
Irritation
moderate
Source
natural
Lime peel powder offers gentle physical exfoliation and a bright scent, but its citrus oils can cause irritation or photosensitivity in some people.
Irritation
moderate
Source
natural
Lime Peel Water adds a fresh citrus scent and mild astringency to products, but its fragrance can be irritating for sensitive skin.
Irritation
moderate
Source
natural
A gentle, antioxidant-rich oil that hydrates and soothes skin without clogging pores.
Irritation
low
Source
natural
A gentle, plant-derived emollient that helps strengthen the skin barrier and offers antioxidant protection without clogging pores.
Irritation
low
Source
natural
A gentle herbal extract with antioxidant potential, but research is still emerging and benefits are not yet well-established in human skin.
Irritation
low
Source
natural
Limonene adds a fresh citrus scent but can be a skin sensitizer, especially when oxidized.
Irritation
moderate
Source
natural
A plant-based antioxidant extract that may help calm skin and fight free radicals, though research is still early.
Irritation
low
Source
natural
A gentle, natural exfoliating powder from wood apple bark, best for those who prefer plant-based physical exfoliants.
Irritation
low
Source
natural
A natural, gritty powder that physically exfoliates skin, but its coarse texture may be too harsh for sensitive or compromised skin.
Irritation
moderate
Source
natural
A gentle, natural wood powder that helps slough off dead skin and absorb excess oil, but lacks strong clinical research.
Irritation
low
Source
natural
Limus is a gentle, seaweed-derived ingredient that may help calm irritated skin and support hydration, though research is still emerging.
Irritation
low
Source
natural
Limus Extract is a gentle botanical antioxidant that may help calm skin and fight free radicals, but research is limited.
Irritation
low
Source
natural
Linalool is a common fragrant component of many essential oils; it can cause skin sensitization in some people, especially when oxidized.
Irritation
moderate
Source
natural
Linalool Dihydroepoxide is a synthetic scent ingredient that can cause skin irritation in sensitive individuals, especially when oxidized.
Irritation
moderate
Source
synthetic
Linalool oxide is a common fragrance ingredient that can cause skin sensitivity in some people, especially when oxidized.
Irritation
moderate
Source
natural
Linalyl acetate is a fragrant ester from lavender and other plants that adds a floral, calming scent to products, but may cause sensitivity in some individuals.
Irritation
low
Source
natural
Linalyl anthranilate is a synthetic fragrance ingredient that adds a floral, fruity scent to products, but it may cause skin irritation or allergic reactions in sensitive individuals.
Irritation
moderate
Source
synthetic
Linalyl Benzoate is a synthetic fragrance ester that adds a pleasant scent to products, but its primary role is aesthetic rather than functional for skin health.
Irritation
low
Source
synthetic
Linalyl butyrate is a synthetic fragrance ingredient that adds a floral, fruity scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Linalyl Cinnamate is a synthetic fragrance ingredient that adds a sweet, floral scent to products but may cause skin irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
Linalyl Formate is a synthetic fragrance ingredient that adds a floral, fruity scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ester that adds a floral, slightly fruity scent to products; generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A synthetic fragrance ingredient that adds a floral, lavender-like scent; generally safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Linalyl isovalerate is a synthetic fragrance ingredient that adds a pleasant scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
Linalyl Methyl Ether is a synthetic scent ingredient that adds a fresh, floral note but may cause irritation in sensitive individuals.
Irritation
moderate
Source
synthetic
A synthetic fragrance ester that adds a sweet, floral scent but offers no direct skin benefit.
Irritation
low
Source
synthetic
Linalyl propionate is a synthetic fragrance ingredient that adds a floral, lavender-like scent to products; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.
Irritation
low
Source
synthetic
A gentle, fragrant oil that softens skin and provides antioxidant benefits, but research on its specific effects is limited.
Irritation
low
Source
natural
A gentle, plant-derived ingredient that helps calm irritated skin and provides antioxidant protection without common irritants.
Irritation
low
Source
natural
A gentle, plant-based extract blend that may help calm irritation and defend against environmental stress, though clinical evidence is limited.
Irritation
low
Source
natural
A gentle, plant-based ingredient that helps calm irritated skin and provides antioxidant protection without clogging pores.
Irritation
low
Source
natural
A gentle floral water that can soothe and lightly tone the skin, but its benefits are mostly anecdotal and not backed by strong clinical evidence.
Irritation
low
Source
natural
A gentle, plant-based extract that may help calm irritated skin and provide antioxidant protection, though research is still emerging.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A gentle, plant-based antioxidant extract that may help calm skin and fight environmental stress, though research is still early.
Irritation
low
Source
natural
A gentle, hydrating botanical water that can replace plain water in formulas, offering mild soothing and antioxidant benefits.
Irritation
low
Source
natural
A gentle botanical extract with antioxidant potential, but research on its skincare benefits is still limited.
Irritation
low
Source
natural
A gentle, antioxidant-rich root extract that may help calm skin and fight free radical damage, though research is still early.
Irritation
low
Source
natural
Lindera twig oil offers a natural, aromatic option for soothing and antioxidant support, but its potency means it should be used in low concentrations to avoid irritation.
Irritation
moderate
Source
natural
Lindera Umbellata Leaf Oil is a natural essential oil that adds a pleasant scent and may offer mild antioxidant benefits, but it carries a moderate risk of skin irritation, especially for sensitive skin.
Irritation
moderate
Source
natural