At least once a week I have someone stop by the blog to ask why the product they're trying to make with polysorbate 80 is separating. Upon further investigation, it turns out they are trying to use a solubilizer - mostly polysorbate 80 - as an emulsifier.

Polysorbate 20 and 80, PEG-40 hydrogenated castor oil, Caprol Micro Express, Cromollient SCE, and caprylyl/capryl glucoside are intended to solubilize small amounts of oils - essential oils, fragrance oils, tiny amounts of carrier oils - into water based products. They aren't intended to be an emulsifier for a 20% oil serum or a 50% oil moisturizer. They are solubilizers that allow you to add a bit of something that wouldn't normally mix with water into water. They aren't full blown emulsifiers that allow you to make a quick lotion or moisturizer.
Having said this, you can combine solubilizers with other things by using the HLB system to create emulsifiers, but you need to have that combination to make it work. On its own, polysorbate 80 isn't an emulsifier, it's a solubilizer. 

There are emulsifiers that you can use cold to create quick lotions, like Aristoflex AVC, Emulthix/RM-2051, Sucragel AOF, and Sepiplus 400, and more, if you don't want to heat and hold or spend loads of time in the workshop. I encourage you to take a look at those as you might find what you're looking for there!

I have a bunch of cold emulsifiers I'll be sharing with you soon as I've been having great fun with them! 

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