Blonde hair after the sea and pool: keeping colour and condition

After the sea, blonde hair gets drier and the colour turns dull and yellow: salt draws out moisture, UV oxidises the protein and the toner pigment, and in the pool copper settles on porous hair and leaves a greenish tint. Some of this can be prevented with a few simple habits on holiday. Whatever has already built up is dealt with in the salon through chelation, reconstruction and fresh toning.

What salt and sun do to lightened hair

As seawater dries on the hair, the salt pulls moisture out of it. After a few days of swimming without rinsing in fresh water, hair turns stiff, the ends tangle and you get that straw-like feel. It's worse on lightened hair, because the cuticle is already raised and the hair loses water faster.

The sun adds its own share. UV triggers photo-oxidation: it damages the hair's proteins and breaks down what's left of the natural pigment as well as the toner. That's why blonde after the summer often looks both drier and more yellow than before. Toner fades faster than it does in town: salt, sun, frequent washing and swimming all work together. That doesn't mean the lightening was bad. Any toned blonde behaves this way in those conditions.

Why hair turns green after the pool

The green tint after swimming is less about chlorine and more about copper. Copper gets into the water from pipes, equipment and some pool treatment products. Chlorine oxidises the hair and makes it even more porous, and copper settles in those areas. On dark hair you won't see it; on light hair a greenish or grey-green tint appears, usually on the ends.

Ordinary shampoo won't remove copper, because it binds to the keratin. Purple shampoo won't help either. It needs chelation, products that bind metal ions and carry them out. Copper in the hair also doesn't mix well with later lightening: it speeds up the breakdown of peroxide and raises the risk of damage. More on that in hair chelation.

How to protect blonde at the sea and the pool

The simplest things work better than you'd expect:

• wet your hair with fresh water before swimming, so it soaks up less salt or chlorinated water;
• put a leave-in product or oil on the lengths, especially the ends;
• rinse your hair with fresh water as soon as you can after the sea or pool, and don't let the salt dry in;
• wear a hat in the sun or keep your hair tied up;
• for the pool, a swimming cap does more than any product.

If it's a long trip, take a gentle shampoo and mask in travel sizes: hotel products are often too clarifying for lightened hair. And remember that coastal wind also dries and tangles the ends, so a loose plait at night helps more than you'd think.

Recovering your hair after the sea starts while you're still away: less hot styling, more masks, a gentle shampoo. If you take purple shampoo with you, use it carefully, because sun-dried hair absorbs pigment unevenly.

What to do with your hair after the sea

Once you're back, the hair usually needs three things. First, chelation: removing the minerals, salt and metals from seawater and pool water. Without it, the next treatments work less well and lightening becomes less predictable. Second, reconstruction: after sun and salt the hair has lost some proteins and lipids, and part of that needs putting back. You can't return hair fully to its pre-lightening condition, but dryness and breakage can be reduced considerably. Third, toning, to take out the yellow it has picked up and bring back shine.

If the ends are badly split or breaking, some length will have to go. I've written about why hair breaks and what to do about it in hair breaking after bleaching.

Lightening before your holiday or after

Both are possible; it's a matter of weighing what matters more to you. If you want fresh blonde on holiday, it's better to lighten in advance, roughly a week or two before you travel, so the hair has a little time to settle. But expect the toner to fade faster at the sea, and plan toning with reconstruction for when you're back.

If you've got a lot of sun, sea or pool ahead and your hair is already weakened, I more often suggest doing the main lightening after the holiday. Then we're working with hair that has already been through the season: we clean it with chelation first, assess its condition and lighten with that in mind. I don't like lightening straight after the beach, without cleansing, on hair full of salt and metals: the risk of damage is higher.

How I work with blonde after the summer

Chelation is part of every service I do, so the hair is first cleared of whatever the sea, the pool and tap water left behind. After the season, toning with reconstruction is usually the right fit; it costs from 700 UAH. If the lightening needs refreshing, we choose a technique: Airtouch from 3,200 UAH, relief from 2,500 UAH, contouring from 1,000 UAH.

Message me on Telegram with a photo of your hair in daylight after you get back. If there are greenish or reddish patches, photograph them separately, so I can see more quickly what we'll be working with.