Question from Patreon: Are there any green alternatives to SLSa in a bath bomb?

In July’s Q&A on Patreon, Ingrid asked: I’m investigating bath bombs and  more natural alternatives to using SLSa for bubbles. I’ve seen bath bomb ingredients listing decyl glucoside as a foaming agent. It’s also supposed to be a solubiliser. Can I use it (in liquid form) instead of the Polysorbate 85 and SLSa? If not,…