Polysorbate 40 is a synthetically produced emulsifier and dispersing agent used to carry flavors and colors in foods.
Polysorbate 40 is considered safe and has no adverse effects reported at the levels present in food. Polysorbate 40 may aggravate propylene glycol sensitivity.
The fatty acids used to synthesize polysorbates may come from animal sources. If this is of concern, consumers should contact manufacturers.
Ice cream, soft drinks, cakes, puddings, desserts, confectionery
The UK Food Guide
EWG’s Skin Deep
Polyoxyethylene sorbitan monopalmitate, E434