Beauty ingredients explained in plain English

A fragrant essential oil with some antimicrobial potential, but its strong aroma and potential for skin irritation limit its use in sensitive skin formulations.

A fragrant essential oil that adds a fresh citrus scent to products, but may cause irritation in sensitive skin and offers limited proven skincare benefits.

Tangerine Peel Oil adds a bright citrus scent to products and may offer mild antioxidant benefits, but it can be irritating for sensitive skin and may increase sun sensitivity.

Tansy flower oil is a fragrant botanical oil with limited modern skincare research; it may offer antimicrobial benefits but carries a moderate risk of skin irritation and is best used in low concentrations.

Tepyl acetate is a synthetic scent ingredient that adds a fresh, herbal note to products, but it offers no skincare benefits and may cause sensitivity in some individuals.

Terpene alcohol acetates are natural fragrance compounds that add pleasant scents to products but may cause irritation in sensitive individuals.

A fragrant terpene blend that adds scent but may irritate sensitive skin.

Terpineol adds a pleasant floral scent to products but may cause irritation in sensitive skin, especially at higher concentrations.

Terpineol Acetate is a naturally derived fragrance ingredient that adds a pleasant floral scent but may cause irritation in sensitive skin.

Terpinolene is a natural antioxidant and fragrance ingredient, but its strong scent and moderate irritation potential mean it's best for those without sensitive skin.

Terpinyl Formate is a synthetic fragrance ingredient with a pleasant floral-herbal scent; it is generally considered safe at low levels but offers no skincare benefits beyond scent.

Terpinyl Isobutyrate is a synthetic fragrance ingredient with a pleasant floral-herbal scent; it is generally considered safe at low concentrations but offers no skincare benefits.

Terpinyl Propionate is a synthetic fragrance ester that adds a pleasant floral-herbal scent to products, but it offers no skincare benefits and may cause sensitivity in those with fragrance allergies.

A synthetic floral scent that can cause irritation in sensitive skin; best avoided if you react to fragrance.

A synthetic fragrance compound with limited public data; generally considered safe at low concentrations but best for those who tolerate added fragrance.

A synthetic fragrance compound with limited safety data; best for those who tolerate added scents well.

A synthetic scent ingredient that adds a unique woody note but may cause irritation in sensitive individuals.

A synthetic scent ingredient that adds a pleasant floral-woody note but offers no skincare benefit and may cause sensitivity in some people.

A synthetic scent ingredient that adds a warm, woody aroma but offers no skin benefit and may cause sensitivity in some people.

A synthetic scent molecule that adds a rose-like fragrance but offers no skincare benefits.

A synthetic cooling agent that adds a minty feel to products, but may cause irritation in sensitive skin.

A synthetic scent ingredient that adds a pleasant aroma but offers no skincare benefits; safe for most when used at low levels.

A synthetic fragrance ingredient that adds a woody, amber scent but offers no skincare benefits and may cause sensitivity in some people.

A synthetic fragrance ingredient that adds a pleasant scent but offers no skincare benefits and may be a concern for those with fragrance sensitivities.

A synthetic scent ingredient that adds a fresh, woody note to products but offers no skin benefit and may cause sensitivity in some people.

A synthetic scent ingredient that adds a fresh note to products; generally safe at low levels but may cause sensitivity in some people.

A synthetic fragrance ingredient that adds a fresh scent but offers no skincare benefits and may irritate sensitive skin.

A synthetic fragrance ingredient that adds scent to products but may cause irritation in sensitive individuals.

A synthetic fragrance ingredient that adds a sweet floral note to products; generally safe at low concentrations but may cause sensitivity in some individuals.

A synthetic fragrance ingredient that adds a pleasant scent but offers no skincare benefits and may cause sensitivity in some people.

A synthetic scent ingredient that adds a sweet, warm note to products; generally considered safe at low concentrations but may cause sensitivity in some individuals.

A synthetic scent ingredient that adds a warm, woody note to products but offers no skincare benefit and may be unnecessary for sensitive noses.

A synthetic citrus-scented fragrance ingredient that can cause skin irritation in sensitive individuals.

Tetrahydroindeno-Dioxin is a synthetic fragrance ingredient with limited research; it is generally considered safe at low concentrations but may cause sensitivity in some individuals.

A synthetic scent ingredient that adds a woody-floral note but may cause irritation in sensitive individuals.

A synthetic scent ingredient that adds a fresh, citrusy note to products but offers no direct skin benefit.

Tetrahydronaphthalenol is a synthetic fragrance ingredient that adds scent to products but may cause irritation in sensitive individuals.

A synthetic fragrance ingredient with limited safety data; best for those who tolerate synthetic scents well.

A widely used synthetic fragrance that gives a warm, woody scent but offers no skincare benefits and may cause sensitivity in some people.

A synthetic scent ingredient that adds a fresh floral note but offers no skincare benefit and may cause sensitivity in some people.

A synthetic scent ingredient that adds a pleasant floral-woody note but offers no skincare benefits and may trigger sensitivities in some people.

A synthetic scent ingredient that adds a fresh citrus note but offers no skincare benefits and may be a concern for those avoiding fragrance.

A synthetic fragrance ingredient that adds a fresh scent but may cause irritation in sensitive individuals.

A synthetic scent ingredient that adds a pleasant note to products but offers no skincare benefit and may cause sensitivity in some people.

A synthetic scent ingredient that adds a fresh note but offers no skincare benefit and may cause sensitivity in some people.

A synthetic scent ingredient that adds a warm, woody note but offers no skincare benefit and may be unnecessary for sensitive noses.

A synthetic fragrance ingredient that adds scent but may cause irritation in sensitive individuals.

A synthetic scent ingredient that adds a warm, woody note but offers no skincare benefits and may cause sensitivity in some people.

A synthetic scent ingredient that adds a warm, woody note but offers no skin benefit and may cause sensitivity in some people.

A synthetic fragrance ingredient that adds a pleasant floral note but offers no skincare benefits and may be unnecessary for sensitive skin.

Tetramethylhexanal is a synthetic fragrance ingredient that adds a fresh, citrusy note to products, but it may cause skin irritation in sensitive individuals.

A synthetic scent compound that adds a fresh note to products but may cause irritation in sensitive individuals.

Texas cedarwood oil adds a warm, woody scent to skincare but can be irritating for sensitive skin if used at high concentrations.

Thianthol is a synthetic fragrance ingredient with limited safety data; it may cause skin irritation in sensitive individuals.

Thiomorpholinone is a synthetic fragrance ingredient with limited safety data; use with caution if you have sensitive skin.

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

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

Tobacco flower oil adds a unique scent to products but has limited research on skin benefits and may irritate sensitive skin.

Tobacco leaf oil is a controversial ingredient with potential antioxidant benefits but significant safety concerns, including skin irritation and nicotine content.

Tolu Balsam Resin adds a warm, sweet scent to products but is a known allergen for some people, so it's best avoided in sensitive or fragrance-reactive skin.