Airy & S-Curl Perms: Soft Korean Waves Explained
If you have been scrolling through Korean hair inspo and keep landing on that soft, weightless “just woke up looking gorgeous” wave, you are looking at an airy perm or an S-curl perm. They are the gentlest, most natural-looking end of the Korean perm world, and in Singapore’s humidity they can be a genuine game-changer for anyone tired of flat, lifeless hair by lunchtime.
What an airy perm and an S-curl perm actually are
Both are loose, low-tension perms designed to add movement rather than tight, spiral curls. The difference is subtle but worth knowing:
- S-curl perm shapes your hair into a gentle “S” wave that runs down the length. Think soft bends that catch the light, not ringlets.
- Airy perm (sometimes called a “hush” or “see-through” perm) is even looser and focuses on volume and a feathery, wispy finish around the face. The curl barely reads as a curl; it just makes everything move beautifully.
Most airy and S-curl looks are created with a digital perm technique, where heated rods set the wave so it holds its shape as your hair dries. That heat-set is a big reason the curl looks defined when styled but relaxed when you run your fingers through it.
Airy vs S-curl vs a tighter perm, side by side
The names blur together on Instagram, so here is the honest breakdown of curl shape, volume and who each one actually suits:
| Perm | Curl shape | Volume | Who it suits |
|---|---|---|---|
| Airy perm | Barely-there bends, wispy face-framing pieces | Soft lift near the roots and face | Fine or flat hair wanting movement so subtle it reads as natural |
| S-curl perm | A clear, flowing “S” down the length | Moderate, even body through the mid-lengths | Medium to long hair wanting effortless, feminine waves |
| Tighter perm | Small, springy curls packed close together | High, bouncy, all-over texture | Anyone who genuinely wants to look curly, with time to style |
If you want to see where C-curls, hush and volume perms sit alongside these, our Korean perm styles explained guide lays out the full family.
How it differs from a tight perm
A traditional tight or cold perm packs small curls close together for maximum texture and bounce. An airy or S-curl perm does the opposite: larger rods, looser winding, lower tension. The result is waves you can wear straightened-out on lazy days and defined on styled days. If you have ever worried that a perm will make you look like a poodle, this is the family of perms that puts that fear to rest.
Who it suits
- Medium to long hair is the sweet spot; there needs to be enough length for the S to form and fall.
- Anyone with fine, flat or pin-straight hair who wants body without a dramatic change.
- People who want a feminine, youthful, effortless vibe rather than glamorous volume.
- Busy folks who want their morning routine to shrink, not grow.
If your hair is very short or heavily layered, a C-curl or a root-lift perm may serve you better. Our perms guide walks through matching curl type to length and lifestyle.
How to ask for it at the salon
Vocabulary saves everyone a lot of guesswork. Try these:
- “I want a loose S-curl, soft and natural, not tight.”
- “An airy perm with movement around my face and a bit of volume at the roots.”
- Bring two or three reference photos of hair a similar length and thickness to yours. Photos of very long hair on a very slim wave will not translate onto a shorter bob.
Also be honest about your styling habits. If you never touch a hairdryer, tell your stylist, so they set a curl that looks good air-dried.
What actually happens in the chair
Knowing the steps takes the nerves out of a first perm. After a quick consultation on tightness and rod size, your stylist sections the hair, winds it onto rods, and applies the first lotion to soften the bonds. For a digital set, the rods are then gently heated to lock the wave in. A second neutralising lotion re-sets those bonds into their new shape, everything is rinsed, and you get a rough dry so you can see the curl. Budget roughly two to three hours depending on length and thickness — bring something to watch.
The first 48 hours matter most
Whatever style you choose, the wave is still settling after you leave. Keep it dry and loose:
- No washing for 48 hours — early washing can drop a soft curl fast.
- Don’t clip, tie or tuck it tightly, or you’ll set a crease into the new wave.
- Sleep with it loose and, once you can wash, switch to sulphate-free, curl-friendly products.
Upkeep and cost realities in Singapore
A digital-set airy or S-curl perm in Singapore typically runs somewhere in the region of a couple of hundred dollars and up, depending on length, thickness and salon. It usually lasts around three to six months before the wave softens out, which for most people means a refresh two to three times a year.
Day-to-day, the honest truth about our climate:
- Humidity is friend and foe. Loose perms cope better than straightened hair, but frizz still creeps in. A light leave-in cream or curl mousse scrunched into damp hair tames it.
- Air-dry, then leave it alone. The more you fuss, the frizzier it gets. Scrunch, don’t brush.
- Perms love moisture. Booking a hair treatment now and then keeps the wave springy and the ends from going straw-like.
- Refresh, don’t restyle. A spritz of water and a scrunch in the morning wakes the wave back up without heat.
Is it worth it?
For anyone chasing low-effort, natural movement, an airy or S-curl perm is one of the most rewarding things you can do to fine or flat hair. It works with our weather rather than fighting it, and it grows out gracefully instead of leaving a hard line. If you are curious whether your length and texture will take the wave well, explore our Korean perm options and let us take a look.
Not sure which wave is “yours”? WhatsApp us two or three reference photos and we will tell you honestly what will suit your hair, then help you book a slot that fits your schedule.
