By the third or fourth day of a beach holiday, hair that behaved fine at home starts to feel like a different material: rougher at the ends, harder to comb, and dull however much conditioner goes on afterwards. Salt water and pool water each do specific things to hair, beyond a vague “beach hair” feeling. Most of what helps is a habit, not a product. If you already use a moisturising shampoo day to day, this explains what’s going on and the routine that makes the difference.
What sea and pool water do to hair
Seawater is saltier than the water inside the hair fibre, and water moves towards the side with more salt. So time in the sea steadily draws water out of your hair rather than adding any, the opposite of what you’d expect.
As hair dries, the salt stays behind as fine crystals on the surface and between the cuticle scales, roughening a layer that normally lies flat. A rough cuticle catches on itself and on other strands. That’s why salt-water hair tangles more, and why it looks duller: light scatters off a rough surface instead of reflecting evenly off a smooth one.
Chlorinated water works differently. Chlorine disinfects the water, and it’s efficient at stripping sebum out of hair along with everything else it breaks down. That’s a large part of why hair can feel like straw, and squeaky, before it’s even dry.
One common mix-up: chlorine itself doesn’t turn light or bleached hair green. The tint usually comes from copper, from the water supply or from algaecides, binding to the hair. Chlorine gets the blame mostly because it’s the one you can smell.
On a real beach day none of this happens alone. UV dries and roughens hair by itself, which is partly why colour looks noticeably duller by the end of a sunny holiday. Wind adds everyday friction as strands rub against each other and your clothes, roughening a cuticle that salt or chlorine has already lifted. Sun, wind, salt and chlorine pile onto each other over the same afternoon.
What helps
These habits matter more than any product on the shelf, ours included.
Rinse with fresh water before you get in. Hair that’s already holding as much water as it can has less room to soak up salt or heavily chlorinated pool water. Some people smooth a little conditioner through the lengths first, too. It isn’t a barrier and won’t stop salt or chlorine reaching your hair, but hair already coated in something slippery has a little less room to take on more.
Rinse thoroughly as soon as you’re out. If hair dries with salt or chlorine still in it, both get far longer to crystallise and roughen the cuticle. Then wash properly the same day. A quick rinse tides you over, but it isn’t a wash. On a trip like this, do shampoo first, then conditioner every day rather than every second or third.
Detangle gently while the conditioner is still in, starting at the ends of a section and working upward while hair is slippery. On rough, sun-and-salt hair, a wide-tooth comb causes far less breakage than a brush. And let hair air-dry where you reasonably can; it’s had enough done to it for one day without heat on top.
What a bottle can’t do
No rinse-off shampoo or conditioner, ours included, prevents sun or salt damage, and nothing you rinse through in the shower reverses damage that’s already there. The most effective habits above are physical: rinsing early, wearing a hat, not brushing hair dry from the roots. They cost nothing and do more than anything in a bottle.
With that said plainly, our Moisturising Shampoo is formulated for daily use, which matters more than usual in a week when you’re washing every day. There’s no need to ration it. Our Moisturising Conditioner goes on the mid-lengths and ends, the oldest, most exposed hair on your head and the part sun, salt and chlorine hit hardest. It detangles easily, which counts most when hair is at its roughest.
Neither claims to protect hair from what the sea and pool do to it. They’re built to make the daily two-step wash-and-condition ritual easier to stick to, and that’s most of the job.
