What is polysorbate 80?
Polysorbate 80, also known as E 433, is a synthetically produced emulsifier. It helps fat-soluble substances disperse finely in a watery environment, which is why it is used in some curcumin products to improve absorption.
Polysorbate 80 explained simply
Emulsifiers join fat and water, which otherwise separate. Polysorbate 80 is made from sorbitol, oleic acid and ethylene oxide and is approved in the EU as the food additive E 433. You find it in ice cream, sauces and baked goods, but also in medicines and food supplements.
Curcumin is lipophilic (fat-soluble) and hardly dissolves in water. In the watery gut contents much of it therefore goes unused. Emulsifiers like polysorbate 80 can incorporate curcumin into tiny droplets or micelles that disperse better in the gut and can increase absorption.
Polysorbate 80 and curcumin
In practice there are several ways to make curcumin more available: piperine, fat, micelle technologies, phytosomes or cyclodextrins. Products with polysorbate 80 belong to the micelle or emulsion group. They can raise bioavailability, to a degree that depends on the formulation. An entry on the ingredient list is therefore not automatically a warning sign. Our blog stresses that such additives often stand for tried-and-tested formulation principles.
Routes to better curcumin absorption
A simplified overview.
| Approach | Principle | Typical excipient |
|---|---|---|
| Approach Emulsion / micelle | Principle Curcumin in very fine fat droplets | Typical excipient Polysorbate 80 and others |
| Approach Phytosome | Principle Bound to phospholipids | Typical excipient Lecithin |
| Approach Inclusion complex | Principle Curcumin inside the ring of a sugar molecule | Typical excipient γ-Cyclodextrin |
| Approach Enzyme inhibition | Principle Breakdown is slowed | Typical excipient Piperine |
Safety and debate
Polysorbates have been assessed by the European authority EFSA, and an acceptable daily intake has been set for the additive. At the same time, research discusses whether emulsifiers in high amounts could affect the gut lining or microbiome; the findings come mostly from cell and animal experiments, and transferability to humans is open. Some people prefer to avoid emulsifiers for personal reasons, which is entirely legitimate.
Frequently asked questions
Is polysorbate 80 dangerous? At the permitted amounts the additive is regarded as safe. Those who wish to avoid emulsifiers can find alternatives. The question is less "dangerous or not" than "does it fit my preferences".
Is polysorbate listed on the packaging? Yes, additives must appear on the ingredient list, either as "polysorbate 80" or "E 433".
What else is it used for? As an excipient in vaccines and medicines, in ice cream, dressings and cosmetics.
Does curcumin work without an emulsifier? Yes, if absorption is improved another way, for example through an inclusion complex with γ-cyclodextrin. The effectiveness of a method shows in measured data, not on the ingredient list.
Curcumin+ does not use polysorbate 80. It consists of an inclusion complex of curcumin and γ-cyclodextrin in a pullulan capsule, without piperine. Which variant suits you is a matter of tolerance and preference.
