First off, I'd like to give a BIG thanks to everybody that kept mentioning Xanthan gum lube. If I would've discovered that tip years ago I would've saved a shitload of money over the years!
I'm now kicking myself for having bought 4 bottles of various liquid-based(also water-based) lubes a couple weeks ago.
Anyways, while at my local health food shop where I bought the xanthan gum, I noticed a small bottle of grapefruit seed extract was $10! Thanks to another poster, I also saw a link to get a REAL preservative called methylparaben - $5 for 4 ounces of powder. So that should be here soon.
Question is - they say to add a maximum of .1% methylparaben powder. How should that be measured if making an 8-ounce batch of lube? The smallest measuring spoon I have is 1/4 tsp.
I'd post the link, but I'm not sure if I would be allowed to.
(Can't wait for my first FL to arrive tomorrow!!! )