Bond Repair in Singapore: Olaplex, K18 and What They Actually Do (2026)

Bond repair treatments like Olaplex and K18 help rebuild the internal links in hair that bleach, colour and chemical straightening have broken, so your hair feels stronger and snaps less. In Singapore, adding one to a colour or rebonding service typically costs about $30 to $90, and a standalone in-salon treatment runs about $80 to $150.

What bond repair won’t do matters just as much. It doesn’t smooth frizz the way keratin does, it doesn’t straighten, and it can’t glue split ends back together. Knowing the difference saves you from paying for the wrong thing.

Bond repair sits between two bigger decisions: colouring and straightening. If you’re weighing up bleach or a new shade, start with our complete hair colouring guide. If it’s rebonding, our complete rebonding guide covers the service itself. This post covers the rescue step that often goes with both: what bonds are, when repair helps, in-salon vs at-home, cost, how often, and its honest limits.

What Are Hair Bonds, Anyway?

Each strand of hair is held together by chemical links between the protein chains inside it. There are two kinds worth knowing about:

• Temporary bonds break every time your hair gets wet or heated and re-form as it dries. That’s why a blow-dry holds until the humidity gets to it.
• Disulfide bonds are the strong, permanent ones. They give hair its strength and elasticity, and they’re what chemical services break.

Bleach breaks disulfide bonds as it lightens. Permanent colour does it to a lesser degree. Rebonding and perms break them on purpose so the hair can be reshaped. Every service leaves some bonds broken for good, and hair with too many broken bonds feels stretchy when wet, straw-like when dry, and snaps when you brush it.

Bond repair products are designed to reconnect or reinforce some of those broken links from the inside, rather than coating the outside of the strand the way a conditioner or mask does. That’s the whole idea, and it’s why salons pair them with bleach and chemical work.

The Types of Bond Repair You’ll See on Menus

Salons use several names: bond repair, bond builder, bond rebuilder, structural repair, plus a handful of brand names. Olaplex and K18 are the two you’ll hear most. They work in different ways, but for booking purposes there are three formats:

1. Bond builder during a chemical service. Added straight into the bleach or colour mix, then followed by a second step at the basin. The aim is to protect bonds while the chemical work is happening. This is the classic Olaplex-style in-salon add-on and the most common way it’s sold with balayage, highlights and bleach.

2. Post-service or standalone treatment. Applied after rinsing or on its own visit, left to work, then rinsed or left in. K18’s in-salon treatment falls here, as do standalone bond treatments for hair that’s already damaged.

3. At-home products. Take-home treatments, shampoos, conditioners and leave-ins from the same families. They’re weaker than the professional steps but help keep hair in better shape between visits.

Brands describe the chemistry differently, and we’re not going to referee those claims. What matters for you is the format: protect during a service, repair after, or maintain at home.

When Bond Repair Actually Helps (and When It Doesn’t)

It’s worth it if:

• You’re bleaching or going much lighter. Balayage, highlights, platinum and pastel colours are where bond builders earn their keep.
• You colour often. Regular permanent colour, especially lightening shades, adds up over time.
• You rebond or perm. Many salons add bond repair to a rebonding session, and it’s a smart ask if your hair has had colour before. If you plan to colour after rebonding, read how to colour hair after rebonding first.
• Your hair is already snapping. Stretchy, gummy or breaking hair after chemical work is the classic rescue case.

You probably don’t need it if:

• Your hair is uncoloured and healthy. There’s little to repair, so the difference is small. A good conditioner will do.
• Your main problem is frizz. Humidity frizz on healthy hair is a smoothing job. That’s keratin smoothing, not bond repair.
• Your problem is dryness or dullness. A hydrating mask or conditioning treatment is cheaper and better suited. Our complete hair treatment guide explains which in-salon treatment fits which problem.

One important line: if your hair is falling out from the root, rather than breaking along the length, that’s a scalp or health question, not a bond question. See a doctor rather than booking a hair treatment.

What Happens in the Chair

As an add-on: it barely changes your appointment. The bond builder goes into your bleach or colour mix, and the second step goes on at the basin before your final rinse. Expect an extra 10 to 20 minutes at most.

As a standalone treatment (about 45 minutes):

1. Consultation. Your stylist checks how the hair stretches wet and dry, and asks about your colour and straightening history.
2. Wash. Often a clarifying wash so the treatment absorbs evenly.
3. Application. Worked through towel-dried hair from mid-lengths to ends, where damage is worst.
4. Processing (10 to 20 minutes, depending on the product).
5. Rinse or leave-in, then blow-dry. Some products are left in and not rinsed, so ask before you plan a wash.

Most people notice hair feels stronger and less stretchy right away. How long that lasts depends on how damaged it was and what you do next.

How Often Should You Get Bond Repair?

A common rhythm, based on how salons typically recommend it:

Your situation	In-salon	At home
Bleach, balayage or highlights	With every lightening service	Weekly or as the product directs
Regular permanent colour	With colour visits if your hair is fragile	Optional
After rebonding or a perm	With the service, plus a follow-up if hair feels weak	Weekly while hair recovers
Visibly breaking hair	Every 4 to 8 weeks until it improves	Weekly
Healthy, uncoloured hair	Not needed	Not needed

These are general guidelines, not a prescription. Follow the instructions on any home product: using some of them more often than directed doesn’t give extra benefit.

How Much Does Bond Repair Cost in Singapore?

Short version from our salon menu research:

• Add-on to a colour or rebonding service: about $30 to $90
• Standalone in-salon treatment: about $80 to $150, with a median of about $110 across the six salon menus we reviewed that list it on its own

Length, the brand used and whether it’s part of a colour package all move the price. Some salons build bond repair into their bleach or balayage price. Others charge it separately, so ask which applies before you book.

Because bond repair is usually priced alongside the main service, it’s easiest to budget for it together. See our hair colour price guide for colour and bleach costs by hair length and salon tier, and our rebonding price guide if you’re straightening. Menu prices change, so always confirm for your hair.

In-Salon vs At-Home Bond Repair

In-salon is where the strongest steps happen, particularly the bond builder mixed into bleach, which you can’t replicate at home. It’s the priority if you’re about to lighten.

At-home products keep hair in better shape between visits. They’re the best value for maintenance, and a reasonable place to start if your hair is only mildly damaged.

The best results usually come from both: protection in the chair, maintenance at home, and gentler habits in between (lower heat, heat protectant, sulphate-free shampoo, fewer chemical services stacked close together).

The Honest Limits of Bond Repair

• It’s not keratin smoothing. Bond repair strengthens. It doesn’t seal the surface against humidity, so it won’t give you sleek, frizz-free hair on its own.
• It’s not rebonding. It doesn’t straighten or change your texture.
• It doesn’t fix split ends. Once an end has split, the only real fix is a trim. Bond repair can help prevent new breakage, not undo old splits.
• It isn’t a licence to over-process. Bleach over rebonded hair, or back-to-back lightening sessions, can still break hair with a bond builder in the mix. It lowers the risk; it doesn’t remove it.
• It’s a cosmetic product, not a medical treatment. In Singapore, products applied to the hair to keep it in good condition are regulated as cosmetics by the Health Sciences Authority, which is separate from products meant to treat a condition. Results vary with your hair and its history.

Is Bond Repair Worth It?

If you bleach, lighten or chemically straighten, yes. A $30 to $90 add-on is small next to the cost of the service it protects, and much smaller than a colour correction or months of growing out broken hair.

If your hair is healthy and uncoloured, save your money. And if frizz is the real complaint, a smoothing treatment will do more for you. Recommend it to yourself by need, not because it’s on every menu.

Frequently Asked Questions

What does bond repair actually do?

Bond repair helps reconnect or reinforce some of the strong disulfide bonds inside hair that bleach, colour and rebonding break. It works inside the strand rather than coating it, so hair feels stronger and snaps less. It does not smooth frizz, straighten hair or fix split ends that have already formed.

How much is an Olaplex or K18 treatment in Singapore?

From the Singapore salon menus we reviewed, a bond repair add-on to a colour or rebonding service typically costs about $30 to $90. A standalone in-salon treatment costs about $80 to $150, with a median of about $110. Hair length, brand and whether it is bundled into a package change the price.

Is bond repair the same as a keratin treatment?

No. Bond repair strengthens hair from the inside after chemical damage, while keratin smoothing seals the surface to tame frizz for a few months. Bond repair will not give you sleek, humidity-proof hair, and keratin will not rebuild broken bonds. Choose keratin for frizz and bond repair for bleached or chemically weakened hair.

How often should I get bond repair?

Get it with every bleach, balayage or highlight service, and with rebonding or perms. For visibly breaking hair, an in-salon treatment every four to eight weeks until it improves is a common rhythm, plus a weekly at-home product. Healthy, uncoloured hair does not need bond repair at all.

Where to Book Bond Repair in Singapore

The simplest way to get bond repair is to add it to the colour or rebonding service you’re already booking, with a stylist who checks your hair’s history first. Browse salons offering bond repair on Glamingo by area and price, see what’s on their menus, and request a booking in a few taps.

Planning the bigger service first? Our complete hair colouring guide and complete rebonding guide walk you through both.

Find a bond repair salon near you on Glamingo →