as to the question is it a chemical or not.... my gut instinct says yes, but this is what wkipedia says
Polysorbate is an oily liquid. It is a class of emulsifiers used in some pharmaceuticals and food preparation. It is often used in cosmetics to solubilise essential oils into water based products. Polysorbates are derived from PEG-ylated sorbitan (a derivative of sorbitol) esterified with fatty acids. Surfactants that are esters of plain (non-PEG-ylated) sorbitan with fatty acids are usually referred to by the name Span.
have you tried to google this to find your answer?
I personally use emulsifying wax and stearic acid in my lotions and creams.
but it will do nothing as a preservative.
but then trying to create a recipe that has " no chemical preservative" goes back to the safety issues. You need to have that chemical preservative to keep them safe. Especially if they are being sold.
You are required by law to comply with the rules the FDA has set forth for cosmetics/drugs being made and sold. If you haven't read up on this I suggest you do so.
PS if you sell lip balm and state it's for dry chapped lips your selling a drug and not a cosmetic. So learn the differences. And yes items sold on line can be reported to the FDA so it's important to comply. And yes they can step in if they are not being followed.