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Hair Guru London Hair Fibres 5g Dark Brown 01 - Sample Size Hair Fibres 5g
Hair Guru London Hair Fibres 5g Dark Brown 02 - Sample Size Hair Fibres 5g
Hair Guru London Hair Fibres 5g Dark Brown 03 - Sample Size Hair Fibres 5g
Hair Guru London Hair Fibres 5g Dark Brown 04 - Sample Size Hair Fibres 5g
Hair Guru London Hair Fibres 5g Dark Brown 05 - Sample Size Hair Fibres 5g
Hair Guru London Hair Fibres 5g Dark Brown 06 - Sample Size Hair Fibres 5g

Sample Size Hair Fibres | 5g

✨ TRY OUR #1 BEST-SELLER — RISK FREE
16% off
  • Try Before You Commit — Just £1
  • Same Premium Cotton Fibres
  • Test Up To 3 Shades At Once
Ships within 24hwith tracking
60 day returnsguarantee
What's Included?

A 5g trial-size bottle of our premium natural cotton hair fibres — the same formula used in our best-selling 28g bottles. Enough for 5-7 applications so you can find your perfect shade.

How To Use

1. Apply on clean, dry, styled hair
2. Shake fibres over desired areas
3. Pat gently to blend
4. Seal with our Locking Spray
5. Style as desired

Ingredients

Gossypium Herbaceum Fibre, Mineral-based Colorant (Natural Iron Oxide)

Shipping & Returns

Enjoy free tracked delivery on all orders over £50.

Our Triple Guarantee
You're fully protected with:

30-Day Money Back Guarantee
If you don't love your results, get a full refund.
Wrong Shade? Free Exchange
We'll swap it for the right colour at no extra cost.
Lost Package? Free Replacement
If your parcel goes missing, we resend it immediately.

How Returns Work
Simply email our UK support team at info@hairgurulondon.com within 30 days of delivery. Items must be unused and in original packaging. Once received, your refund is processed in full.

what our 30,000+ customers say.

Before and after comparison of our customer wearing hair guru london fibres before and after

I ordered the 5g sample to test my shade before committing. Perfect match first time. Now I've got the full bottle and use it every day.

Sarah M.Verified Customer, Manchester

see the difference.

Hair Guru London customer 1 after hair fibres - fuller natural hair
After
Hair Guru London customer 1 before hair fibres application
Before
Hair Guru London customer 2 after hair fibres - fuller natural hair
After
Hair Guru London customer 2 before hair fibres application
Before
Hair Guru London customer 4 after hair fibres - fuller natural hair
After
Hair Guru London customer 4 before hair fibres application
Before

How to use.

1

Apply gently and build up the coverage gradually from the crown to the front.

2

Tap slightly to let the fibers settle onto the hair. Apply more fibers if necessary.

3

Use the pump to perfect the hairline. Apply in short bursts for a natural finish.

4

The final lock: Secure your look with 4-6 light mists. Allow a minute to dry.

Hair Guru London hair fibres rain proof weather resistant
Hair Guru London hair fibres rain proof weather resistant

rain, sweat & wind proof.

We use Cotton.

Hair Guru London cotton hair fibres microscope close up
Powered by CottonWrap™ Technology
us | cotton
  • plant based & vegan
  • naturally wraps around hair
  • gentle on scalp
  • undetectable
Hair Guru London cotton hair fibres microscope close up
others | keratin
  • animal proteins
  • synthetic & made in lab
  • risk of irritation
  • visable & looks fake

real people, real results.

Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review
Hair Guru London customer video review

only 2 natural ingredients.

Hair Guru London cotton hair fibres microscope close up
Botanical Fibre

Levant Cotton Fiber

Gossypium Herbaceum: A pure, ancestral botanical fiber used for its superior absorbency and soft, non-irritating texture.

Natural iron oxide pigment used in Hair Guru London fibres
Earth-Derived Pigment

Natural Iron Oxide

Mineral-based colorants sourced directly from nature, providing rich, stable hues without the need for synthetic dyes.

Frequently Asked Questions.

What are Hair Guru London fibres made of?

Our fibres are made from natural cotton using our proprietary CottonWrap™ technology. Unlike keratin-based fibres, cotton fibres naturally wrap around your existing hair strands for a denser, more undetectable finish. They’re plant-based, vegan, and gentle on even the most sensitive scalps.

How do I apply the fibres?

Application takes about 30 seconds. Shake the bottle gently over thinning areas, starting from the crown and working forward. Tap lightly to let the fibres settle, then finish with 4–6 light mists of our Locking Spray. For precision around the hairline, use our Easy Apply Fibre Pump.

Will people notice I’m wearing hair fibres?

No. Our cotton fibres are completely undetectable, even in bright sunlight and under close inspection. CottonWrap™ fibres blend seamlessly with your natural hair texture. Most of our 30,000+ customers tell us nobody can tell they’re using anything at all.

Are the fibres rain, sweat, and wind proof?

Yes. Once secured with our Locking Spray, Hair Guru fibres are resistant to rain, sweat, and wind. They’ll hold up through your gym session, a rainy commute, or a long day outdoors. The fibres stay in place until you wash them out with regular shampoo.

How do I choose the right shade?

We offer 14 shades to match virtually every hair colour. Use our free AI Colour Match Scanner — just scan your hair and get your perfect shade in 10 seconds. When in doubt, go slightly darker for the most natural result.

What’s included in the 5g sample?

A trial-size bottle of our premium natural cotton hair fibres — the exact same formula used in our best-selling 28g bottles. Enough for 5–7 applications so you can find your perfect shade before committing to a full bottle.

Is it safe for sensitive scalps?

Absolutely. Our fibres are made from natural cotton with no harsh chemicals, synthetic dyes, or irritants. They’re dermatologist-friendly and safe for daily use, even on the most sensitive skin. The formula is also vegan and cruelty-free.

What is your returns policy?

We offer a 30-day money-back guarantee. If you’re not completely satisfied, contact us and we’ll sort it out. We also offer free shade exchanges if your colour isn’t quite right, and free replacements for any lost packages.

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