Beauty ingredients explained in plain English

A hybrid ingredient that combines silica's oil-absorbing power with thiosulfate's antioxidant potential, but research on its cosmetic benefits is still limited.

Thiotaurine is a gentle antioxidant that may help protect skin from environmental stress, but research is still early.

Thioxanthine is a synthetic antioxidant that may help protect skin from environmental stress, but research is limited and it's not a well-established ingredient.

A novel synthetic ingredient with limited public research; early data suggests it may help even skin tone, but its safety and efficacy are not yet well-established.

Threitol is a gentle, lesser-known humectant that helps hydrate skin without stickiness, but research on its cosmetic benefits is still limited.

A gentle amino-acid derivative that may help reduce visible skin reactivity and support a more even tone, though human data is still limited.

Threonine is a gentle, hydrating amino acid that supports the skin's natural moisture barrier and is well-tolerated by most skin types.

Thuja Bark Extract may offer soothing and antimicrobial benefits, but its use in skincare is still emerging and requires caution due to potential skin irritation.

A gentle botanical extract with antioxidant potential, but research on its specific benefits in skincare is still limited.

Thuja Leaf Oil offers antimicrobial benefits but can be irritating for sensitive skin; use with caution.

A traditional botanical extract with some antimicrobial promise, but limited modern research and a moderate risk of skin irritation for sensitive individuals.

A gentle plant extract with antioxidant potential, but research on its cosmetic benefits is still limited.

A gentle botanical powder with antioxidant potential, but research in cosmetics is still limited.

A gentle plant extract with antioxidant potential, but research on its skincare benefits is still limited.

A plant-based antioxidant extract that may help calm skin and fight free radical damage, though research is still early.

A gentle plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.

A gentle, antioxidant-rich botanical water that may help soothe skin, but research is limited.

A gentle botanical extract with antioxidant potential, but research on its topical benefits is still limited.

A plant extract with traditional astringent uses, but limited modern research on its effectiveness and safety in skincare.

A potent essential oil with antimicrobial potential, but its strong nature and limited skincare research mean it's best used cautiously in low concentrations.

Thujanol is a fragrant plant compound that can add a fresh, woody scent to products but may cause irritation for sensitive skin.

Thujic acid is a plant-derived compound with early evidence of antioxidant and antimicrobial benefits, but it is not well-studied in human skincare and is rarely used as a standalone active.

Thurfyl Nicotinate creates a temporary flush and warmth by widening blood vessels, but it is not a long-term solution for skin concerns and may irritate sensitive skin.

Thurfyl nicotinate HCl creates a temporary warming sensation by dilating blood vessels, but its cosmetic benefits are short-lived and may cause irritation in sensitive skin.

Thyme extract is a gentle botanical antioxidant that helps protect skin from environmental stress and may support a balanced skin microbiome.

Thyme extract is a gentle botanical antioxidant that may help protect skin from environmental stress, but its fragrance can be a concern for sensitive skin.

Thyme water is a mild, fragrant botanical water that can add a subtle antimicrobial boost and a pleasant herbal scent to skincare, but it is not a potent active ingredient on its own.

Thyme powder brings antioxidant and antimicrobial benefits to skincare, but its gritty texture limits it mostly to rinse-off products.

Thyme Leaf Extract is a gentle antioxidant that helps protect skin from environmental stress while offering mild soothing benefits.

Thyme Leaf Water offers a mild, natural way to add light antimicrobial and soothing benefits to skincare, but its effects are subtle and best for those who enjoy botanical ingredients.

Thyme oil can help fight acne-causing bacteria and provide antioxidant protection, but it is potent and may irritate sensitive skin if used undiluted.

A gentle, plant-based extract that may help calm skin and fight free radical damage, though research is still early.

Thymidine is a gentle, science-backed ingredient that helps support skin’s natural repair processes, making it a smart addition to anti-aging and recovery routines.

Thymine is a DNA base with emerging research in skin repair, but its cosmetic benefits are not yet well-established in human studies.

Thymol is a natural antimicrobial from thyme oil that helps preserve products and fight acne-causing bacteria, but it can be irritating for sensitive skin at higher concentrations.

Thymol Acetate is a synthetic fragrance ingredient with mild antimicrobial properties, but it can be irritating for sensitive skin.

A synthetic UV filter that helps shield skin from sun damage, but research on its long-term safety and efficacy is still limited.

A gentle herbal extract that helps protect skin from environmental stress and may support a balanced skin microbiome.

A potent botanical oil with antimicrobial benefits, best used in low concentrations and with caution for sensitive skin.

A gentle, antioxidant-rich plant extract that may help calm skin and defend against environmental stress, though research is still emerging.

A gentle, plant-based antioxidant that may help calm skin and fight free radicals, but research is still early.

Thymus Zygis Flower Oil offers antimicrobial and antioxidant benefits, but its strong fragrance and potential for irritation mean it's best for those with resilient skin.

A gentle, antioxidant-rich plant extract that helps protect skin from environmental stress while offering mild soothing benefits.

Tiare flower extract adds a pleasant tropical scent and mild antioxidant benefits, but its skincare effects are not well-studied.

A gentle botanical extract with early research suggesting soothing and antioxidant benefits, but human studies are limited.

A gentle, plant-derived antioxidant that may help protect skin from environmental stress, though research is still emerging.

Tiger lily extract is a gentle botanical ingredient that may help calm skin and provide antioxidant support, though research is still emerging.

A gentle, plant-based extract that may help calm skin and fight free radicals, but research on its specific benefits is still limited.

A gentle botanical extract that may help calm skin and provide antioxidant support, but research is still early.

Tiger nut root oil is a gentle, nutrient-rich emollient that hydrates and soothes skin without clogging pores, making it a good choice for sensitive and dry skin types.

Tiglic acid is a gentle exfoliating acid with antimicrobial potential, but research on its efficacy and safety in cosmetics is still limited.

A gentle plant extract with antioxidant potential, but research on its cosmetic benefits is still limited.

Tiliroside is a gentle plant antioxidant that may help calm redness and defend skin from daily pollution, though human studies are still limited.

Timonacic is a synthetic antioxidant that may help protect skin from environmental stress, but research on its cosmetic benefits is still limited.

A gentle, antioxidant-packed fruit extract that may help protect skin from environmental stress, though research is still early.

Tin is a safe, low-risk metallic pigment used in small amounts for color in cosmetics, but it offers no skincare benefits.

Tin oxide is a safe, inert mineral that helps give cosmetics a smooth texture and opaque finish, but it offers no active skincare benefits.

A gentle, plant-based antioxidant from Ayurveda that may help calm skin and fight environmental stress, though human studies are still limited.

A traditional Ayurvedic botanical that may offer antioxidant and soothing benefits, but clinical skincare evidence is still limited.

A gentle botanical powder with antioxidant potential, but research is limited and it's not a skincare staple.