Most TPR toys, TPR silicone included, are not compatible with oil based lubes because of the rubber component. You also did not specify but I assume your question was asking about vaginal insertion rather than anal. Oil based lube is generally not recommended vaginally.

Water based is pretty much your best option. A thicker formula, like Maximus, might work better. Or if you didn't have water running over you that would reduce the wash off. Only other suggestion would be to use a silicone or hybrid lube with a condom.

Good to know, thanks a lot! I kind of suspected as such, but it's good to have my suspicions confirmed. Kind of disappointed, but oh well. I'll probably try my Sliquid gel (thickest stuff I have currently) and just direct the shower head away from me, at least until I get the toy in.

And yes, it's vaginal. I use Yes oil-based lube every so often for shower play and I've never experienced problems (I believe Gunsmoke said he and his wife use oil-based all the time without trouble, which is what gave me the idea) and none of the sources I've checked have ever cautioned against using oil-based lube vaginally. Is there something specific I should be worried about with it?

It's not that the oil itself is harmful, but it doesn't get absorbed very well and can lead to a vaginal infection. I'm sure some types of oil are "safer" than others, but I'm not sure. I've only used oil based for anal.

I can see that being the case. Yes is, from what I've seen and heard, a reputable brand that focuses heavily on producing healthy and safe products (much like Sliquid does), and since I'm not using it too frequently I believe I'll be okay. Several months down the line and no problems thus far, though if I do get an infection I'll at least be aware of one possible cause.

I know it's safe with normal TPR, it's the TPR silicone I worry about. I know pure silicone may withstand it, but I don't know about a compound. Truthfully, I don't much like silicone lube (too thin, feels weird, hardest to wash off) - I generally only keep it around for my "bath toys" that I know for certain won't work with the oil, which admittedly I don't like much better (doesn't feel wet enough), but I just don't make enough lubrication on my own. I might do a spot test, though, just to see.

I'm actually kind of surprised - this is the first time I've ever heard of oil-based lube being bad for you. I've never had a problem, and with this thread I've been looking the topic up and still can't find any reference to oil-based lubes negatively effecting vaginal health (for the most part all I get is warnings not to use it with latex condoms, which I already know). If anyone can send me some links, I'll be happy to read up.

Thank you so much. I didn't know Oil based lubes can be used vaginally. I'll tell my girl. Thanks again.