emulsifying
Ingredients that help things which normally do not like to mix together (most notably water and oils) to do just that and form a nice, uniform mixture. Without them, your cosmetic product would separate into a watery part and an oily part.
Sodium Taurine Cocoyl Methyltaurate
Sodium Tocopheryl Phosphate
Sodium Trideceth Sulfate
Sorbeth-20 Beeswax
Sorbeth-230 Tetraoleate
Sorbeth-30
Sorbeth-30 Tetraisostearate
Sorbeth-30 Tetraoleate
Sorbeth-40 Tetraoleate
Sorbeth-6 Beeswax
Sorbitan Caprylate
Sorbitan Isostearate
Sorbitan Laurate
Sorbitan Oleate
Sorbitan Oleate Decylglucoside Crosspolymer
Sorbitan Olivate
Sorbitan Palmitate
Sorbitan Sesquiisostearate
Sorbitan Sesquioleate
Sorbitan Stearate
Sorbitan Trioleate
Sorbitan Tristearate
Sorbityl Laurate
Soy Acid
Stearamidopropyl Dimethylamine
Steareth-10
Steareth-16
Steareth-2
Steareth-20
Steareth-200
Steareth-21
Steareth-25
Steareth-3
Steareth-4
Steareth-6
Steareth-7
Stearoyl Inulin
Stearoyl Macrogolglycerides
Stearyl Alcohol
Stearyl Olivate
Stearyl Palmitate
Stearyl Phosphate
Sucrose Cocoate
Sucrose Dilaurate
Sucrose Distearate
Sucrose Hexaisostearate
Sucrose Laurate
Sucrose Palmitate
Sucrose Polybehenate
Sucrose Polycottonseedate