t
- Talc
- Talc (Magnesium Silicate)
- Tallow
- Tamanu oil
- Tapioca starch
- TBHQ (tertiary butylhydroquinone)
- TEA-Carbomer
- TEA-Lauryl sulfate
- Teeth whitening products
- Testosterone Cream
- Tetrahexyldecyl ascorbate
- Tetrahydroxypropyl ethylenediamine
- Tetrasodium EDTA
- Tetrasodium etidronate
- Tetrasodium glutamate diacetate
- Tetrasodium iminodisuccinate
- Thiamin mononitrate
- Thymol
- Tin oxide
- Titanium dioxide
- Titanium Dioxide in Lip and Oral Care Products
- Titanium dioxide (nano)
- Tocopherols
- Tocopheryl acetate
- Tocopheryl nicotinate
- Tolnaftate
- Toluene
- Totarol
- Trehalose
- Tribehenin
- Tribromsalan
- Tri-C12-13 alkyl citrate
- Tricaprylin
- Triclocarban
- Triclosan
- Trideceth-12
- Tridecyl neopentanoate
- Tridecyl salicylate
- Triethanolamine (TEA)
- Triethoxycaprylylsilane
- Triethyl citrate
- Triethylhexanoin
- Trifluoroacetyl tripeptide-2
- Trihydroxystearin
- Triisostearoyl polyglyceryl-3 dimer dilinoleate
- Triisostearyl citrate
- Trimethylsiloxyamodimethicone
- Trimethylsiloxysilicate
- Trioctyldodecyl citrate
- Tripalmitin
- Triple dye
- Trisodium EDTA
- Trisodium ethylenediamine disuccinate
- Tromethamine
- Tropolone
- True unicorn root
- Tulsi
- Tyrosine
