There are five main types of hair extensions: clip-ins, tape-ins, nano bonds, K-tips and wefts. Clip-ins go in and out at home with no commitment. Tape-ins and wefts are semi-permanent and fitted in a salon. Nano bonds and K-tips attach individual strands and are the most discreet. The right one for you comes down to three things: how thick your natural hair is, whether you want extensions in all the time or only sometimes, and how much salon maintenance you are willing to book. This guide covers each method honestly, including who it does not suit.
In this guide
- What are the main types of hair extensions?
- Clip-in hair extensions
- Nano bond hair extensions
- K-tip and flat tip hair extensions
- Tape-in hair extensions
- Weft hair extensions
- All five methods compared
- Which type should you choose?
- Which type is best for thin or fine hair?
- Which type is best for curly or textured hair?
- Does the hair itself matter more than the method?
- Frequently asked questions
What are the main types of hair extensions?
Every extension method is solving the same problem in a different way: how do you attach more hair to the hair you already have, without it showing and without damaging what is underneath.
They split into two groups. Temporary means clip-ins, which you fit yourself and remove at night. Semi-permanent covers everything else, fitted by a professional and worn continuously for weeks or months before being moved up as your hair grows.
Within the semi-permanent group, the difference is the size of the attachment. Wefts attach a whole row at once. Tape-ins attach a small panel. Nano bonds and K-tips attach a handful of strands at a time. Smaller attachments hide better and spread weight more evenly, but take longer to fit and cost more to have done.
Left to right: individual strand bonds, flat keratin tips, a sewn weft, and a clip-in set. The attachment is the only real difference.
Clip-in hair extensions
Small wefts with pressure clips sewn along the top edge. You section your hair, clip them in, and take them out before bed.
Who they suit. Anyone new to extensions, anyone who only wants length for events, and anyone nervous about damage. Because nothing stays attached, your own hair carries the weight for hours rather than months.
The honest downside. You have to put them in every time you want them, and on very fine hair the clips themselves can be felt if you overload one section. They are also the most expensive method per set, though there is no fitting fee to add.
How long they last. One to two years with good care, because they are not worn constantly.
No commitment, no salon appointment
WAVE Deluxe Clip-In Hair Extensions
100% Double Drawn Remy human hair in 16" to 24". The set to buy if you want to try extensions before committing to anything permanent.
From £229.99 Shop clip-ins →
Nano bond hair extensions
Individual strands pre-tipped with a tiny bond, threaded through a micro bead and clamped closed against your own hair. No heat, no glue.
Who they suit. Fine hair, short hair, and anyone who wants extensions to be genuinely undetectable, including in a high ponytail. The bead is smaller than any other bonded method, so there is very little to hide.
The honest downside. Fitting takes the longest of any method, often three to four hours, and it costs the most to have done. If you want a lot of volume quickly, this is a slow way to get there.
How long they last. The fitting holds three to four months before it needs moving up. The hair lasts six to nine months.
The most discreet permanent option
WAVE Nano Bond Hair Extensions
Individual strands on the smallest bead available, in 60+ shades. The usual recommendation for fine and textured hair.
From £161.99 Shop nano bonds →
K-tip and flat tip hair extensions
A small flat keratin bond fused to a section of your natural hair. The flat shape is the point: a round bond sits proud of the head, a flat one lies against it.
Who they suit. People who want the discretion of an individual strand method with a slightly faster fitting than nano bonds. The flat profile makes them comfortable to sleep on, which round bonds are not always.
The honest downside. Keratin bonds are applied with heat and removed with a solution, so both fitting and removal need someone who knows what they are doing. This is not a method to attempt at home.
How long they last. Similar to nano bonds: three to four months per fitting, six to nine months for the hair.
Flat bonds that sit close to the scalp
WAVE K-Tip Hair Extensions
Flat keratin tips in 16" to 24", 100% Remy human hair. Discreet enough for fine hair and comfortable to sleep on.
From £161.99 Shop K-tips →
Tape-in hair extensions
Thin panels of hair with a medical-grade adhesive strip along the top. Two panels sandwich a fine section of your own hair between them.
Who they suit. Anyone who wants a full head fitted quickly. Tape-ins are the fastest professional method, often under an hour, and they lie very flat, which suits straight and wavy hair particularly well.
The honest downside. Oil is the enemy. Conditioner, serums and even natural scalp oil near the tape will loosen it, so the aftercare is stricter than other methods. They also suit fine to medium hair better than very thick hair, where the panels can struggle to hold.
How long they last. Six to eight weeks per fitting, and the same hair can usually be re-taped and reused two or three times.
If your own hair is wavy or curly, WAVE also makes curly tape in hair extensions in a genuine curl pattern rather than straight hair set on a rod, which almost no other UK supplier stocks.
Fastest professional fitting
WAVE Tape In Hair Extensions
Slim tape panels in straight and curly textures, 16" to 24". A full head in around an hour.
From £175.00 Shop tape-ins →
Weft hair extensions
A continuous track of hair sewn onto a flat seam, fitted in rows using beads, a braid or a sew-in. WAVE wefts are flat wefts, which are slimmer than traditional hand-tied or machine wefts and sit closer to the head.
Who they suit. Medium to thick hair, and anyone who wants serious volume rather than just length. Because the weight is spread along a whole row rather than hanging off individual strands, wefts are genuinely comfortable for full-time wear.
The honest downside. Rows need enough hair above them to stay hidden, so wefts are the least suitable method for very fine or very short hair. They also need repositioning more often than bonded methods.
How long they last. Moved up every six to eight weeks. The hair itself holds condition for nine to twelve months and can be reused across several refits, which is what makes wefts cost-effective over a year.
Maximum volume in one appointment
WAVE Flat Weft Hair Extensions
Slim flat wefts in textures from straight through to 4C coily, so the row blends rather than fights your natural pattern.
From £199.99 Shop wefts →
Individual strand methods take the longest to fit, which is exactly why they hide so well.
All five methods compared
| Type | How it attaches | Best for | Hair from | Refit |
|---|---|---|---|---|
| Clip-in | Clips, in and out at home | Occasional wear, first-timers | £229.99 | None |
| Nano bond | Individual strands on a micro bead | Fine hair, short hair, invisibility | £161.99 | 3 to 4 months |
| K-tip | Flat keratin bond, heat fused | Discretion with a faster fitting | £161.99 | 3 to 4 months |
| Tape-in | Adhesive panels sandwiching the hair | Fast full head, fine to medium hair | £175.00 | 6 to 8 weeks |
| Weft | Rows beaded, braided or sewn in | Volume, medium to thick hair | £199.99 | 6 to 8 weeks |
Prices are for the hair itself. Salon fitting adds roughly £50 to £150 for tape-ins, £80 to £250 for wefts and £150 to £250 for individual bonds. Our UK price guide breaks down the full cost including maintenance.
Which type should you choose?
Work through it in this order.
Start with how often you want them in. If the answer is anything less than daily, choose clip-ins and stop there. No fitting cost, no maintenance appointments, no tension on your roots, and you can change your mind.
If you want them in permanently, look at your hair density next. Fine or thinning hair points to nano bonds or K-tips, because the small attachments spread weight best. Medium to thick hair opens up wefts, which give the most volume for the money.
Then consider your hair length. If you are working with a bob or shorter, small attachments are essential and rows are difficult to hide. We cover this properly in hair extensions for short hair.
Finally, be honest about maintenance. Tape-ins and wefts need attention every six to eight weeks. Bonded methods stretch to three or four months. If you know you will not book the appointment, choose the method with the longer window, because leaving a fitting in too long is the single most common cause of damage.
Which type is best for thin or fine hair?
On fine hair the size of the attachment decides everything, because the goal is thickness without a join that shows or tugs. For permanent wear, nano bonds are the usual answer: the bead is small enough to disappear against a delicate scalp, and K-tips run a close second. Flat wefts and tape-ins can work beautifully too, since both share the weight along a track rather than loading single strands, but each needs enough hair above the row or panel to stay covered. For occasional wear, a lighter clip-in set is the safest option of all, as long as you use fewer wefts than the set contains and move the clip positions between wears. We go deeper on this in our guide to the best hair extensions for thin hair.
Which type is best for curly or textured hair?
Curly and coily hair can wear all five methods, so the method matters far less than matching the curl pattern. Hair cut from a genuine pattern moves as one with your own texture, which straight hair curled to match never quite manages. Clip-in curly sets are lovely for flexible, occasional volume, while curly wefts and bonds give lasting length if you wear your texture every day. Browse the curly hair extensions collection, matched by curl code from 2A to 4C, then follow our curly extension care guide to keep the pattern defined once it is fitted. If your pattern is closer to a soft wave than a defined curl, our wavy hair extensions run across the same five methods.
One method worth singling out. Tape-ins in a real curl pattern are genuinely hard to find in the UK, because most suppliers only make tape in straight hair. If that is the method you want alongside your own texture, see the curly tape in hair extensions range.
If a supplier has offered you Burmese curly, read our guide to Burmese curly hair first. The name is used loosely across the trade and can mean anything from a 3B spiral to a 4C coil, so it is worth knowing which pattern you are actually buying before you commit to a length and a shade.
Does the hair itself matter more than the method?
Usually, yes. A cheap set of extensions fitted brilliantly will still mat and tangle within weeks. A quality set fitted reasonably well will look good for months.
The thing that separates them is whether the hair is Remy, meaning every strand has been kept running root to tip so the cuticles do not clash. Non-Remy hair is often coated in silicone to feel smooth in the packet, and once that washes off it tangles badly. Double Drawn goes a step further and removes the short strands, so the hair stays thick to the ends rather than tapering.
Everything WAVE sells is 100% Double Drawn Remy human hair. Our guide to what Remy hair actually means explains why this matters more than which method you pick, and how long hair extensions last shows what that buys you in practice.
Frequently asked questions
What are the different types of hair extensions?
The five main types are clip-ins, tape-ins, nano bonds, K-tips and wefts. Clip-ins are temporary and fitted at home. The other four are semi-permanent and fitted by a professional, differing mainly in how large the attachment point is and how long each fitting lasts.
Which type of hair extension is best?
There is no single best type. Clip-ins are best for occasional wear, nano bonds and K-tips for fine or short hair and maximum discretion, tape-ins for a fast full head, and wefts for volume on medium to thick hair. Your hair density and how often you want them in decide it.
Which hair extensions are least damaging?
Clip-ins, because nothing stays attached long term. Among permanent methods, nano bonds and K-tips are gentlest because the small attachments spread weight across many points rather than loading a few strands.
What is the difference between tape-in and weft extensions?
Tape-ins use adhesive panels that sandwich a thin section of hair and take under an hour to fit. Wefts are continuous rows attached with beads, a braid or a sew-in, giving more volume but needing more natural hair above them to stay hidden.
What are the longest lasting hair extensions?
Clip-ins last longest overall at one to two years, because they are not worn constantly. Among fitted methods, wefts hold their condition longest at nine to twelve months, and can be reused across several refits.
Which hair extensions are best for fine hair?
Nano bonds and K-tips. Both use very small attachment points that distribute weight evenly and hide easily in sparse hair. Clip-ins are also a safe choice for fine hair as long as you use fewer wefts than the set contains.
Ready to choose?
Every WAVE method comes in 100% Double Drawn Remy human hair across 60+ shades and lengths from 16" to 24". If you are unsure on shade, start with our free colour match service.
Salons and extensionists can apply for a trade account for professional pricing across all five ranges.
More guides
- How much do hair extensions cost in the UK?
- How long do hair extensions last?
- Do hair extensions damage your hair?
- Hair extensions for thin and fine hair
- Hair extensions for short hair
- What is Remy hair?
- How to wash hair extensions
- Hair extension products to avoid
- How to sleep with hair extensions
- How to care for curly hair extensions
- Can you dye hair extensions?
