Does Period Blood Attract Sharks? A Chemist Untangles the Myth From the Science
A famous surfer swore period blood draws sharks. Marine biologists, the shark-attack records, and the fluid physics all say otherwise — the honest correction.
Browsing Tag
period swimwear
12 posts
Articles tagged "period swimwear".
Can You Swim on Your Period? (Ocean, Pool, With or Without a Tampon)
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.
Does Salt Water Stop Your Period? What Actually Happens When You Swim
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.
How to Wash & Care for Period Swimwear (2026): A Chemist's Guide to Making It Last
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.
Non-Toxic & PFAS-Free Period Swimwear (2026): What the Lab Tests Actually Show — and What They Don't
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.
Best Period Swimwear (2026): A Materials Chemist Ranks the Leak-Proof Suits That Actually Hold
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.
Heavy-Flow Period Swimwear: The Honest Guide (Why You Need a Disc Too)
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.
How Does Period Swimwear Actually Work? The Pink Puddle Physics, Explained by a Chemist
Does period swimwear actually work underwater? Why it absorbs blood but can't keep pool water out — and what that "pink puddle" really is.
Best Period Swimwear for Teens (2026): A Materials Chemist's Honest Guide
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.
Underswimming: The Drag-Suit Trick Swimmers Use to Train on Their Period
The drag-suit trick competitive swimmers use to train on their period — how underswimming works, and the lowest-drag period bottoms for the pool.
The Rise of Period Swimwear: How Beautikini's Leak-Proof Design Works (An Honest Look)
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.
Period Swimwear: The Science & Style Guide (How Leak-Proof Suits Actually Work)
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.