How to Get Beach Waves With Sea Salt Spray
The wind came off the open water in long, salty breaths while I rowed the little boat back from the sandbar, my hair still wet from the swim. By the time the hull scraped the beach, it had dried into soft, loose bends that no curling iron has ever given me. Salt, a bit of twisting and air did that. You can bottle most of that rowboat at home.
So, how do you get beach waves with sea salt spray? Mist it onto damp hair, scrunch or twist sections the direction you want them to bend, then let your hair dry with as little touching as possible, by air or with a diffuser. Sea salt spray adds grip and a matte, piecey texture, so waves form and hold instead of falling flat. How much you use and how you shape it depends on your hair type, and that's where most guides stop short. Below you'll find the method, the amounts and a plan for straight, wavy, curly and coily hair.
- Spray onto damp (not dripping) hair, mid-lengths to ends, and keep it mostly off the roots unless you want lift there.
- Shape while it dries: scrunch for loose texture, twist for defined bends, braid for bigger waves.
- Straight and fine hair need fewer sprays plus a twist or braid. Curly and coily hair need a light hand and an oil on the ends.
- Salt can feel drying, so finish with 1 to 2 drops of hair oil on the ends and skip daily use if your hair already runs dry.
What sea salt spray actually does to your hair
Real ocean water leaves a fine film on each strand when it dries. That film roughs up the surface just a little, so strands grip each other and hold a bend instead of sliding apart. It also soaks up a bit of oil, which is why beach hair looks matte and full instead of sleek.
A sea salt spray copies that effect in a bottle. You get texture, a little volume and a bendy, lived-in shape. What it doesn't do is create curl out of nowhere. The wave comes from how you shape your hair while it dries. The spray just helps the shape stick around.
My own Siren Sea Salt Hair Tonic ($25) is a texturizing mist made for soft waves and volume, and it smells like my Brazilian Beaches scent, so you get the beach without the sand in your bag.
How to get beach waves with sea salt spray, step by step
This is the base method. Adjust the amounts and shaping for your hair type in the next section.
- Start with clean or second-day hair. Wash and condition as usual, then towel-dry gently until your hair is damp, not dripping. On second-day hair, mist lightly with water first so the spray has something to work with.
- Detangle first. Use a wide-tooth comb or your fingers now. You won't be brushing again once the waves set.
- Shake and spray. Hold the bottle 6 to 8 inches away. Work in 4 sections (two in front, two in back) and mist mid-lengths to ends. Start with about 6 to 10 sprays in total for shoulder-length hair.
- Shape it. Scrunch handfuls up toward your scalp for messy texture, twist 1 to 2 inch sections away from your face for defined bends, or put damp hair in one or two loose braids for bigger, softer waves.
- Dry without fuss. Air-dry, or use a diffuser on low heat and low speed, cupping hair up toward the roots. The less you touch it while it's drying, the better the waves hold.
- Break it up and finish. Once your hair is fully dry, undo any twists or braids and gently pull the waves apart with your fingers. Rub 1 to 2 drops of hair oil between your palms and smooth over the ends only.
Short on time? Do it on dry hair. Mist a few sprays, twist sections around a finger or wrap them around a flat iron or a 1 to 1.25 inch curling wand, leave the last inch straight, then scrunch. You'll get waves in about 10 minutes.
Beach waves by hair type
The biggest mistake I see on the sand is everyone using the same amount the same way. Fine, straight hair drowns in spray that a thick head of curls barely notices. Here's how I'd tune it.
| Hair type | How much spray | Best shaping method | Finish |
|---|---|---|---|
| Straight, fine | 4 to 6 sprays, more at the roots for lift | Two loose braids or twisted buns, dried fully (overnight works) | Skip oil or use 1 drop on the very ends |
| Straight, thick | 8 to 12 sprays, sectioned | Twist and pin sections, or a quick wand pass on dry hair | 1 to 2 drops of oil on the ends |
| Wavy | 6 to 8 sprays on damp hair | Scrunch and diffuse, or simply air-dry | 1 to 2 drops of oil to calm frizz |
| Curly | 3 to 5 sprays, over a leave-in conditioner | Scrunch gently or twist larger sections to loosen the curl | 2 drops of oil on the ends |
| Coily | A light mist only, over leave-in or oil | Twist-out or braid-out, then separate once fully dry | Oil on ends and seal well |
Straight or fine hair
Straight hair is the hardest to talk into a wave, because there's no natural bend to build on. The spray gives grip, but the shaping does the heavy lifting. Braid damp, sprayed hair into two loose braids and let it dry completely before you take them out. Half-dry hair just falls straight again by lunch. Keep the oil to a single drop so the texture doesn't flatten.
Wavy hair
Good news. Wavy hair already wants to do this. Spray damp hair, scrunch upward, then hands off. Diffuse on low if you're in a hurry. If you tend to get frizz, read my notes on hair oil for frizzy hair before you add the finishing drops.
Curly and coily hair
For curls and coils, sea salt spray is about loosening and texturizing, not adding more curl. Use a leave-in first, keep the spray light, and twist larger sections if you want a looser, beachy pattern. Salt can make tight textures feel dry fast, so seal the ends with oil and keep salt spray for special days rather than every day.
How to use sea salt spray without drying your hair out
The same salty grip that holds a wave can leave hair feeling crunchy or thirsty, especially if it's color-treated or already dry. A few habits keep it soft:
- Keep it off the ends you're worried about. Focus spray on mid-lengths, where the wave forms.
- Oil after, every time. My Siren Hair Oil Elixir (2 oz, $30) blends coconut, sweet almond, avocado, argan and vitamin E oils. A few drops on dry ends softens the crunch without killing the texture. Here's how to use hair oil if you're new to it.
- Wash it out. Don't stack three days of salt spray on top of each other. Rinse and condition before you restyle.
- Give hair days off. Two or three salt days a week is plenty for most hair.
Worried about damage in the long run? I break down what salt can and can't do in does sea salt spray damage hair. And if your scalp itches or flakes no matter what you change, see a dermatologist if it lasts more than a couple of weeks, since that's a skin issue, not a styling one.
How to make your waves last longer
- Let it dry 100%. Waves set as the hair dries. Damp braids taken out early lose most of their shape.
- Sleep on it smart. Pile hair loosely on top of your head or into one loose braid, and use a silk or satin pillowcase if you have one.
- Refresh, don't redo. On day two, mist a little water plus 2 or 3 sprays of salt spray, scrunch, and twist the few pieces that dropped.
- Hands off. Every time you run your fingers through it, you're brushing the wave out a bit.
My picks for beach waves
- The Siren Sea Salt Hair Tonic ($25): texturizing mist for soft waves and volume, in my pistachio, jasmine and sandalwood scent.
- The Siren Hair Oil Elixir ($30): the finishing step that keeps salty ends soft.
- The Valkyrie Sea Salt Hair Tonic ($25): same texturizing mist in a softer floral, vanilla and sandalwood scent.
- Sea Salt Hair Tonic Bundle ($85): if you want a few scents to rotate through the week.
FAQ
Do you use sea salt spray on wet or dry hair?
Both work. Damp hair gives the most natural, longest-lasting waves because they set as your hair dries. Dry hair works for a quick refresh or with a curling wand when you're short on time.
Does sea salt spray work on straight hair?
Yes, but the shaping matters more than the spray. Braid or twist damp, sprayed hair and let it dry completely, or use a wand on dry hair. The spray then gives the waves grip so they hold.
How many sprays of sea salt spray should I use?
Start with about 6 to 10 sprays for shoulder-length hair and adjust from there. Fine hair needs fewer, thick hair needs more. Too much leaves hair stiff or crunchy.
Can I use sea salt spray every day?
You can, but most hair does better with two or three salt days a week. Salt can feel drying, so rinse it out between styles and finish with a few drops of hair oil on the ends.
Can you use sea salt spray on curly hair?
Yes, with a light hand. Use it over a leave-in conditioner to loosen curls into a beachier texture, and seal your ends with oil. Tight curls and coils can dry out faster, so save it for special days.
Back to the rowboat
That afternoon on the water, nobody did my hair. The salt wind did it while I rowed. Now I keep the same trick in a bottle by the mirror: spray, twist, hands off, a drop of oil, and I'm back on that sandbar, at least from the shoulders up. Let the tide do half the work.
Every beauty has a story.
ā The Siren
