1, the active components of hand sanitizer mainly surfactants, other additives, such as essence, pigment, thickener is to improve the user experience, and preservatives.
2, hand sanitizer, usually nominal "toxic", but still can't entry, in addition to what you said "spit bubbles", "taste" and other issues, the main reason is that it's not food, not comply with the specification of food additives, the additive that is to say, these additives are potentially toxic, directly taking liquid soap will have certain toxicity.
3, in addition to additive toxicity, its main ingredients - surfactant on gastric mucosal damage.Differ according to each manufacturer USES the surface active agent, its failure mechanism has a little difference, but is basically a surfactant of membrane protein (mainly the inner membrane protein) elution effect, can cause some adverse reactions, serious need to gastric lavage.