Keratin Bond vs Tape-In Extensions: The Honest Comparison

After fitting hundreds of both keratin bonds and tape-ins, here's the honest comparison — no marketing, no method-preference, just what we've learned.

Quick summary

• Keratin bonds: individual strands heat-fused with a tiny keratin tip. Lasts 3–6 months. Discreet, long-lasting, less maintenance.
• Tape-ins: pre-taped wefts applied close to the root. Refit every 6–8 weeks, hair reusable for 9–12 months. Fast, flexible, lower upfront cost.

Which lasts longer?

Keratin bonds are a single application that lasts 3–6 months before removal and refit. Tape-ins need a refit every 6–8 weeks but the hair itself can be reused for 9–12 months — so the hair actually lasts longer overall, but you'll have more appointments.

Which is better for fine hair?

Keratin bonds — small individual bonds are less visible on fine hair and distribute weight evenly. Tape-ins can show through if your hair is very fine or thin at the roots.

Which is cheaper?

Tape-ins have a lower upfront cost (around £250–£550 for a full session) but require 6–8 weekly refits. Keratin bonds are £400–£1,100 for a session but last 3–6 months. Total annual cost is comparable.

Which takes longer to apply?

Keratin bonds: 2–4 hours (depending on volume). Tape-ins: 1–2 hours.

Which is easier to maintain?

Tape-ins need more frequent appointments but each one is shorter (45–90 minutes). Keratin bonds need fewer appointments but each one is longer when it happens.

What we recommend

There's no universally 'better' method. The right choice depends on your hair, your lifestyle, and your goals. That's why every new client at Sisters' starts with a free consultation — so we can look at your hair and recommend the right method, not the one we prefer to fit.