Intimacy · 5 min read
Post-sex UTIs: bacteria are only half the story
You showered. You peed. You still got one. Let's talk about friction.
By El Zahra · Co-Founder & Medical Lead
You can do everything "right." Shower before. Pee right after. Wipe front to back like your life depends on it. And still, two days later, there it is.
That's because bacteria are only half of the story. The other half is mechanical. Friction.
Tiny tears, big consequences
Delicate tissue that rubs without enough glide can get tiny irritations. You might not even feel them. But irritated tissue gives bacteria an easier time. It's one reason the pattern "sex, then a UTI" is so stubborn.
Perfect hygiene can't fix a friction problem.
The lube aisle isn't helping
Most lubes are water-based. Water lets microbes grow, so these products need preservatives. Many also contain glycerin, a sugar alcohol. And they dry out fast, turn sticky, and suddenly there's more friction, not less.
Oils like coconut oil feel natural and lovely, but they can damage latex condoms. Not ideal if a condom is your contraception.
What we built instead
That's why our Intimate Barrier Serum is waterless and silicone-based. No water, no preservatives, no glycerin, and safe with latex. Think of it less as lube and more as a cushion.
