Tensioactives encompass emulsifiers and foaming agents.
They work the same way: they have the property to gather at interfaces, and stabilize them. Foam is an air/water interface, and an emulsion is an oil/water interface.
Generally in cosmetics, they are synthetic of highly chemically modified.
The most natural versions are:
- Saponins (found in soapnuts)
- Decyl glucoside, lauryl glucoside, and others of the same family
- Glyceryl oleate,
- Sodium cocoyl glutamate,
- Hydrolyzed wheat proteins
The chemical modifications generally aim at improving a functionality, an efficiency, a specificity. When using only raw ingredients, it is normal to grant that the efficiency can be lower.
Being aware of this is important, as you’ll remember to adjust the amount of ingredient in function. When you make an anti-scaling spray with Durgol or any other highly potent chemical, you need less than 10%. For a white vinegar anti-scaling spray, you can go for a 100%, or more. And add another layer. It doesn’t mean that it is not effective.
When you go from a carnivore to a vegan diet, you need to eat much more (in volume): veggies are less caloric. But it still fuels the whole body, with many side benefits associated with the vegetal-based nutrition. Now imagine for your skin…