The glide rules

There are three lubricant families and they don't all behave well with each other. Water-based glides are forgiving — latex-safe, toy-safe, easy to rinse. Silicone-based last longer but don't pair with silicone toys. Oil-based have no place near latex.

Fink Aqua Glide is water-based on purpose. It's the most universally compatible answer, and it stays clean.

The 50 ml bottle isn't a sample. We sized it to last about sixty uses, which is roughly two months of regular use. Smaller and you're back at a chemist. Larger and the bottle dominates the bedside.