The only thing I know about cactus juice is that it is a bad thing to use to seal wood when you're pouring resin over it. Other than that I'm not sure how it's used as I don't normally used stabilizers. Now if you're wanting a sealer/over-coating, the Amazing Clear Cast is great for this. What are you putting it over?
Can we have some of our members who use stabilizers chime in and add their advice?