Sorbitol 70% in Toothpaste: Why It Is Used and What to Look For

Open almost any tube of toothpaste and look at the ingredient list: sorbitol is usually among the first ingredients. In oral care it is typically used as sorbitol solution 70% (E420, CAS 50-70-4), a clear, viscous liquid that is easy to pump and dose. This article explains what sorbitol does in toothpaste and what to look for when sourcing it.

What sorbitol 70% does in toothpaste

1. Humectant: keeps the paste from drying out

Sorbitol binds water. It prevents toothpaste from drying out and hardening in the tube and at the nozzle, and keeps the paste smooth over the whole shelf life. This is its most important function.

2. Sweetener without sugar

Sorbitol has about 60% of the sweetness of sugar and improves the taste of the paste. Because it is a sugar alcohol, it is a standard sweetener in sugar-free oral care products.

3. Body and texture

As one of the main liquid components, sorbitol contributes to the body, viscosity and mouthfeel of the paste, together with the thickener and abrasive.

4. Cost-effective alternative to glycerin

Sorbitol and glycerin are the two classic humectants in toothpaste. Many formulations combine both, using sorbitol 70% as the main humectant for cost reasons and glycerin for specific properties.

How much sorbitol is used?

Sorbitol solution is usually one of the largest ingredients in a toothpaste formulation, often in the range of several tens of percent. The exact level depends on the formulation, the other humectants and the desired texture.

Why liquid sorbitol 70% instead of powder?

• No dissolving step: the solution can be pumped directly into the mixer.
• Easy dosing by weight or volume.
• Bulk handling in IBCs fits continuous production.

Other uses of sorbitol 70%

Beyond toothpaste and mouthwash, sorbitol solution 70% is used in sugar-free confectionery, bakery fillings, syrups and oral liquid pharmaceuticals, and as a humectant in creams and lotions.

What to check when sourcing sorbitol 70%

• Specification for your application: food (E420), pharmacopoeia or oral care requirements.
• Dry substance (approx. 70%) and the crystallising or non-crystallising type.
• CoA for every batch and an up-to-date SDS.
• Packaging and logistics: IBC delivery to your plant.

Buy sorbitol solution 70% in Europe

biolla chemicals supplies sorbitol solution 70% (E420) in IBCs to manufacturers across Europe. Specification, CoA and SDS on request. If you need a dry ingredient, see our sorbitol powder. Contact us or call +49 40 67 555 155 for an offer.