It can be used in small amounts in water based gels that will hold it in suspension.
Heat sensitive so must be used in Stage 3 (below 40°C) when making creams and lotions.
Adding a minimum of 0.5% to your oil blends, creams and lotions is the bare minimum to help slow down oxidation of the product.
However, we really want to have a good antioxidant effect in our skin as well so for that purpose, you normally have to add more. 1% or 2% adds a good antioxidant effect.
Once you go above 3% we feel that you need to consider the whole formulation in a different way and may need to add some Rosemary Antioxidant as well.
Each formulation will be different because of the fatty acid profiles of the oils chosen.
Using Vitamin E at the higher levels like 10% will feel extremely sticky and unpleasant on the skin.
It can also cause reddening of the skin as the higher percentages have an exfoliating effect on the skin.
Of course, this my be an action that you want, for example, to help reduce the appearance of scar tissue.
It will also need Rosemary Antioxidant as stated above.