Chastity and orgasm denial discussion

It looks like KY now offers a pricey desensitizing product (KY Duration) that you can find at local pharmacies. I’ve put money into the desensitizing condoms, but I’m considering going all in since she is able to make me reach orgasm even when using it. I know I could layer two condoms, but she isn’t fond of them anyway, so adding a second one might just turn her off. So now I am looking for simple, ready-made options that will reduce my sensitivity and keep me frustrated in the cage. My initial idea is to look at OraGel’s ‘Severe tooth and gum pain’ cream as an alternative to KY. It costs about a third of what KY does and claims to work right away with long-lasting effects. This specific product contains 20% Benzocaine, and user reviews praise its effectiveness. Has anyone tested this out? Do you have any worries or better recommendations? I’d prefer not to order from Amazon if I can help it.