Chlorine keeps a pool safe to train in, but it strips the same oils that protect your skin and hair. Swimmers who train five or six days a week notice it fastest: dry patches, brittle ends, itchy scalp, sometimes a rash along the neck or armpits where a suit rubs. None of this is inevitable. A short routine before and after each session prevents most of it, and it takes less time than packing your bag.
Does chlorine actually damage skin and hair?
Yes, but indirectly. Chlorine itself is not what turns hair green or leaves skin flaky. It strips away the natural oils (sebum) that normally coat your skin and hair shaft, so both dry out and become more porous. Once hair is porous, it absorbs metals dissolved in pool water, usually copper from algaecide or old plumbing, which oxidizes and gives that greenish tint. Dry, oil stripped skin is also more prone to irritation from suit fabric, chafing, and sun exposure at outdoor pools.
When should you rinse off after swimming?
Rinse within a few minutes of getting out, before your skin and hair dry with chlorine still sitting on them. A plain water shower for 60 to 90 seconds, even without soap, washes away most residual chlorine before it fully evaporates and binds to hair or skin. Pool decks almost always have a rinse station for exactly this reason. If you only shower once you get home, twenty or thirty minutes later, the chlorine has had time to do more of its drying work.
Should you rinse before swimming too?
Yes, and it matters more than most swimmers realize. Wetting your hair and skin with clean water before you get in the pool means the hair shaft and skin absorb that water instead of pool water once you dive in. It is a simple form of saturation: hair that is already wet with fresh water soaks up less chlorinated water. Many competitive programs build this into warm up without ever explaining why it helps.
What shampoo should swimmers use?
A swim specific or chelating shampoo works best because it is formulated to bind and remove metal deposits like copper and calcium, not just oil and dirt. Regular shampoo cleans hair but does not target those mineral deposits, so green tinting and dryness build up over a season even if you shower every day. Wash with a swim shampoo two to three times a week and use a regular gentle shampoo the rest of the week so you are not over stripping hair on top of what the pool already does. Follow with a conditioner every time you wash, focusing on the ends where damage shows first.
Does swimmers' hair really turn green from chlorine?
Yes, and it is almost always copper, not chlorine itself. Copper is common in algaecide and in some water systems' pipes. Light or previously bleached hair shows it most because there is less natural pigment to mask the tint. A chelating shampoo used consistently removes existing buildup and prevents new tint from setting in. A swim cap also helps by cutting how much water contacts your hair in the first place, though it will not seal out all moisture.
How can you protect your skin during a swim?
Apply a thin layer of a water resistant moisturizer or barrier balm to areas prone to chafing and dryness before you get in: underarms, inner thighs, and any spot where a suit seam rubs. This is the same idea as the pre swim rinse, giving your skin something other than pool water to interact with first. For outdoor training, a water resistant sunscreen applied at least fifteen minutes before you get in is non negotiable, since UV exposure combines with chlorine dryness to age skin faster than either alone.
What about your ears and sinuses?
Dry your ears fully after every session to avoid swimmer's ear, an infection that thrives in trapped moisture. Tilt your head to each side and gently pull the earlobe to help water drain, then dry the outer ear with a towel. A few drops of a drying solution (equal parts white vinegar and rubbing alcohol) after swimming can help if you are prone to ear infections, but check with a doctor or pharmacist before using any ear drops regularly, especially if you have ever had a perforated eardrum. For chronic sinus irritation from pool chemicals, a saline rinse after practice is a simple, low risk habit worth asking a doctor about.
Should swimmers moisturize daily?
Yes, ideally right after your post swim shower while skin is still slightly damp. Moisturizer applied to damp skin traps water at the surface more effectively than applying it to fully dry skin. Use a fragrance free lotion or cream on your whole body, paying extra attention to elbows, knees, and hands, which dry out fastest with frequent water exposure. This one habit, repeated daily, prevents most of the flaking and tightness swimmers associate with training season.
What is a simple post swim routine to build as a habit?
Keep it to four steps so it actually sticks:
- Rinse with plain water for 60 to 90 seconds before you leave the pool deck.
- Wash hair with a chelating shampoo two to three times a week, conditioner every time.
- Dry ears thoroughly, tilting your head and toweling the outer ear.
- Moisturize skin while still damp, focusing on elbows, knees, and hands.
None of these steps take more than a couple of minutes, and together they prevent the dry skin, brittle hair, and ear irritation that make daily training feel worse than it needs to.
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