Every method, explained

Nine ways to attach extensions, grouped into tape, strand and bond, weft systems, and removable pieces. For each: how it attaches, how long it lasts, who it suits, and what it asks of your routine.

Tape systems

Thin adhesive-backed wefts pressed on either side of a slice of your own hair. Flat, fast and reusable.

Tape-In

Tape extensions · Hotheads, BELLAMI

Thin wefts with medical-grade adhesive tabs are pressed on either side of a fine slice of your own hair, like a sandwich. Removed with a solvent that dissolves the adhesive.

Wear: 6–10 weeks per round
Application: 1–1.5 hours
Maintenance: Move-up every 6–10 weeks
Reusable hair: Up to ~3 re-tapes
Investment: ●●○○

Benefits

Lies flat against the head, very comfortable
Fastest semi-permanent application
No heat, beads or braiding
Hair is reusable across several move-ups

Drawbacks

Tabs can show in high ponytails or updos
Oils and conditioner near the root loosen adhesive
Needs regular move-ups as hair grows

Best for: Fine to medium hair, first-timers, anyone short on chair time
Think twice if: Very oily scalps, frequent high ponytails

Full guide to Tape-In

Strand & bond

Individual strands attached to small sections of hair. The most versatile results.

Individual keratin-tipped strands held beside a sectioned row of bonds

Keratin Bond

K-tip · fusion · hot fusion · Great Lengths

Individual pre-tipped strands are fused to small sections of natural hair with a heated tool that softens the keratin-based bond. Removed with a bond solvent and pliers.

Wear: 3–5 months
Application: 3–5 hours
Maintenance: Check-in every 6–8 weeks, full refit at 3–5 months
Reusable hair: Usually not; new strands each refit
Investment: ●●●●

Benefits

Most versatile for updos, as strands move individually
Longest wear between full appointments
Tiny, discreet bonds
Strand placement can be customised precisely

Drawbacks

Longest application and removal
Heat is used near the hair at the root
Highest upfront investment
Bonds can mat if not dried properly

Best for: Medium to thick hair, updos and high ponytails, long-term wear
Think twice if: Heat-sensitive or very fragile hair, tight budgets

Full guide to Keratin Bond

Fine individual strand extensions attached in a row and blended into long wavy hair

I-Tip

Micro-link · micro-bead · cold fusion

Strands with a hardened stick tip are threaded through a small copper or aluminium bead with your hair, then clamped. No heat, glue or chemicals.

Wear: 3–4 months
Application: 2–4 hours
Maintenance: Tighten and move up every 6–8 weeks
Reusable hair: Yes, often for several months
Investment: ●●●○

Benefits

No heat, glue or solvents
Strands reusable after move-ups
Good movement and updo-friendly
Easy adjustment of individual strands

Drawbacks

Beads can be felt when sleeping at first
Can slip on fine or slippery hair
Bead clamped too tightly can stress hair

Best for: Medium to thick hair, those avoiding heat and adhesives
Think twice if: Very fine or very silky hair where beads can slip

Full guide to I-Tip

Very small, closely spaced strand attachments along a sectioned row

Nano Ring

Nano bead · nano tip

Like an i-tip, but with a much smaller tip and ring, which sits closer to the scalp and is almost invisible.

Wear: 3–4 months
Application: 3–5 hours
Maintenance: Move up every 6–8 weeks
Reusable hair: Yes
Investment: ●●●○

Benefits

Smallest bead attachment available
Good for fine hair and short hairlines
No heat or glue

Drawbacks

Slow, detailed application
Fewer trained specialists
Tiny rings can slip on very fine hair

Best for: Fine or shorter hair, very discreet results
Think twice if: Clients who want a quick appointment

Full guide to Nano Ring

Weft systems

Curtains of hair attached along a row. Maximum volume per attachment.

A weft row revealed beneath lifted hair, blended into long straight hair

Hand-Tied Weft

Beaded row · NBR · IBE · sewn weft

Thin hand-tied wefts are sewn or beaded onto a horizontal row of micro-beads, usually in one to three rows. No heat or glue.

Wear: 6–10 weeks per move-up
Application: 2–3 hours
Maintenance: Move-up every 6–10 weeks
Reusable hair: Yes, wefts last 6–12 months
Investment: ●●●○

Benefits

Big volume with fewer attachment points
No heat, glue or adhesives
Wefts are reusable for months
Thin, flexible wefts lie flat

Drawbacks

Rows can show in high ponytails
Weight concentrated on a row of hair
Can feel tight for the first days
Not for fine or thinning hair

Best for: Medium to thick hair wanting dramatic volume
Think twice if: Very fine hair, sensitive scalps

Full guide to Hand-Tied Weft

A flat weft sitting under a lifted section of wavy brunette hair

Machine & Genius Weft

Flat weft · genius weft · hybrid weft

Machine-sewn wefts, including new thin “genius” wefts that can be cut to any width without shedding, attached with beads, sewing or tape.

Wear: 6–10 weeks per move-up
Application: 1.5–3 hours
Maintenance: Move-up every 6–10 weeks
Reusable hair: Yes
Investment: ●●○○

Benefits

Lower cost than hand-tied wefts
Genius wefts can be cut without shedding
Dense, even volume

Drawbacks

Older machine wefts are bulkier at the seam
Same ponytail limits as other wefts

Best for: Medium to thick hair, those wanting weft volume at a lower cost than hand-tied
Think twice if: Very fine hair

Full guide to Machine & Genius Weft

Removable

You put them in and take them out. No salon maintenance.

Clip-In

Clip-in wefts

Wefts with small pressure clips that you snap in at home and remove before bed.

Wear: Daily, removed nightly
Application: 5–15 minutes yourself
Maintenance: Wash the hair every 15–20 wears
Reusable hair: Yes, 6–12 months
Investment: ●○○○

Benefits

No salon appointment needed
Zero commitment
Most affordable entry point

Drawbacks

Must be removed every night
Clips can be felt, and can pull fine hair
Less secure in wind or during sport

Best for: Occasional volume, events, commitment-free trials
Think twice if: Very fine hair if worn daily, as clips can stress the root

Full guide to Clip-In

Halo

Wire halo · flip-in

One wide weft on an invisible wire that sits on your crown like a headband. Your hair is pulled over it to hide the wire. Nothing attaches to your hair.

Wear: Daily, removed nightly
Application: Under 2 minutes
Maintenance: Minimal
Reusable hair: Yes, 6–12 months
Investment: ●○○○

Benefits

No attachment, so no stress on your hair
Fastest to put on
Good for fragile hair

Drawbacks

Cannot wear hair up
Can shift in wind or exercise
Must be removed nightly

Best for: Fine, fragile or thinning hair; anyone avoiding attachment
Think twice if: High ponytails and updos

Full guide to Halo

Topper blended at the part, front view, adding volume at the crown

Ponytail & Topper

Wrap ponytails · clip-in toppers

A wrap-around ponytail piece clipped over your own ponytail, or a topper that clips over a thinning crown for volume at the part.

Wear: Daily, removed nightly
Application: Minutes
Maintenance: Minimal
Reusable hair: Yes
Investment: ●○○○

Benefits

Instant fullness where you need it
No commitment
Toppers cover a thinning part

Drawbacks

Single-style pieces
Colour match matters more on toppers

Best for: Event styling; crown thinning (toppers)
Think twice if: Those wanting all-day, all-week wear

Full guide to Ponytail & Topper

At a glance

The comparison

Wear times and application times are typical ranges and vary with growth rate, hair density, aftercare and the amount of hair applied. Your specialist will give you figures for your own hair.

Method	Attachment	Wear	Application	Maintenance	Best for	Investment
Tape-In	Tape systems	6–10 weeks per round	1–1.5 hours	Move-up every 6–10 weeks	Fine to medium hair, first-timers, anyone short on chair time	●●○○
Keratin Bond	Strand & bond	3–5 months	3–5 hours	Check-in every 6–8 weeks, full refit at 3–5 months	Medium to thick hair, updos and high ponytails, long-term wear	●●●●
I-Tip	Strand & bond	3–4 months	2–4 hours	Tighten and move up every 6–8 weeks	Medium to thick hair, those avoiding heat and adhesives	●●●○
Nano Ring	Strand & bond	3–4 months	3–5 hours	Move up every 6–8 weeks	Fine or shorter hair, very discreet results	●●●○
Hand-Tied Weft	Weft systems	6–10 weeks per move-up	2–3 hours	Move-up every 6–10 weeks	Medium to thick hair wanting dramatic volume	●●●○
Machine & Genius Weft	Weft systems	6–10 weeks per move-up	1.5–3 hours	Move-up every 6–10 weeks	Medium to thick hair, those wanting weft volume at a lower cost than hand-tied	●●○○
Clip-In	Removable	Daily, removed nightly	5–15 minutes yourself	Wash the hair every 15–20 wears	Occasional volume, events, commitment-free trials	●○○○
Halo	Removable	Daily, removed nightly	Under 2 minutes	Minimal	Fine, fragile or thinning hair; anyone avoiding attachment	●○○○
Ponytail & Topper	Removable	Daily, removed nightly	Minutes	Minimal	Event styling; crown thinning (toppers)	●○○○

Brands worth knowing

Great Lengths

Pre-bonded keratin strands. Great Lengths says it patented its synthesized keratin bond in 1992, designed to expand and contract with natural hair when wet and dry, and requires stylists to complete certification before applying it.

Hotheads

Tape-in extensions with thin adhesive tabs sandwiched around a slice of natural hair. Quick to apply and reusable across several move-ups.

BELLAMI Professional

Tape-ins, i-tips, k-tips, hand-tied and machine wefts, plus clip-ins and halos. BELLAMI publishes a stylist locator, which powers the listings in Find a Salon.