Period Care

A famous surfer swore period blood draws sharks. Marine biologists, the shark-attack records, and the fluid physics all say otherwise — the honest correction.

Yes, you can swim on your period — safely and hygienically. What water pressure really does to your flow, why the "pink puddle" is physics not failure, and your options with or without a tampon.

No, the ocean does not stop your period — you are bleeding the whole time. Here is why it only LOOKS paused underwater, why it is not the salt, and why you still need protection.

Most period swimwear doesn't wear out — the dryer and fabric softener kill it. The exact wash routine that keeps the gusset absorbent, and why it starts to smell.

The PFAS lawsuits were about period underwear — not swimwear, which almost no lab has tested. How to read a "PFAS-free" swimsuit claim, and whose evidence actually holds up.

Why does most period swimwear leak on a heavy day? The suits that actually hold, the teen, budget and backup picks, and the "pink puddle" physics other guides skip.

No swimsuit survives a heavy day-1 alone — the highest-capacity period swimwear, why you also need a menstrual disc, and the double-up that gets you through the water.

Does period swimwear actually work underwater? Why it absorbs blood but can't keep pool water out — and what that "pink puddle" really is.

Period swimwear a teen will actually wear — Ruby Love, KT by Knix, Red Drop and a budget pick, ranked on honest pros, cons and real-world limits.

The drag-suit trick competitive swimmers use to train on their period — how underswimming works, and the lowest-drag period bottoms for the pool.

How to write a first period letter your daughter will keep—mom-to-daughter templates, age-appropriate language, what belongs in a first period kit, and what to avoid.

A science-backed breakdown of period underwear vs. pads. We compare absorbency, comfort, cost, and health risks to help you make the best choice for your cycle.

An honest look at Beautikini, the budget Amazon period swimsuit brand — how its leak-proof gusset really works, who it's for (teens, light-to-moderate flow), and where it fits among the better-known options.

Discover the science behind period underwear. Our expert guide explains how absorbent gussets work, what materials to choose, and how to find the perfect fit for all-day comfort and confidence. Your ultimate guide to sustainable menstrual solutions.

A materials-led deep dive into how leak-proof period swimwear actually works — the absorbent-layer science, the honest "pink-puddle" physics, and a style guide for matching silhouette and flow. Brands compared: Modibodi, WUKA, Knix, The Period Company and more.

Discover the advanced material science behind leak-proof protection. Our 2025 guide deconstructs the 4-layer technology that offers all-day confidence and empowers your freedom, based on real cosmetic lab insights.