Sepiplus 400 (INCI: Polyacrylate 13 (and) Polyisobutene (and) Polysorbate 2) is a neat emulsifier that can be used cold to emulsify up to 50% oils in a lotion! It comes as a thick, opaque, pearly liquid that can be used as the sole emulsifier at 0.5% to 3% or as a thickener and stabilizer in a lotion at 0.2% to 3%. It can be heated, if you wish, but you can also use it cold, which is how I've been playing with it.
It is stable to a huge pH range from 2.5 to 11, so you can use it in all kinds of applications with low pH ranges, like gels or lotions with salicylic acid or AHAs like Multifruit BSC and lactic acid.
Leave the oils out and make a gel that can handle electrolytes, ethanol, glycerin, and glycols with all kinds of goodies for those of us who can't handle oils on our faces or bodies.
You can mix Sepiplus 400 with anything you have, stick blender, hand mixer, stationary mixer, and so on!
I've been using it to make cream gels - which is what we call a lotion made with this emulsifier - by putting together all the oily ingredients, mixing a bit, then adding the water phase while mixing. I continue to mix for a minute or two, then I'm done!
If you want to make aqueous gels or those without oils, just put together all the ingredients, and add the Sepiplus 400 to the container while mixing.
If you want to make gels with alcohol as the base, then you'd make the aqueous gel as above, then add the alcohol while stirring.
Here are few recipes I found from the company to show you the different ways you can use Sepiplus 400...
A basic cream gel recipe - substitute any oil you wish for the 20% C12-15 alkyl benzoate
Pleasures of mineral balance cream gel - you can substitute the ethylhexyl palmitate with any light oil you wish, like fractionated coconut oil or another ester.
Where can you find Sepiplus 400" The only place I've found it is at Lotioncrafter. If you have other suggestions, please make them in the comments so others can ...