Hair Fibre Locking Spray
- Use With Hair Guru London Fibres
- Gym, Rain & Wind Proof
- Keeps Fibres Secure All Day
How It Works
Formulated to work in perfect harmony with Hair Guru London Fibres, our Locking Spray creates a fine, invisible bond between the fibres and your natural hair. The micro-mist secures your style without stiffness or sticky residue. The result? A waterproof, wind-resistant shield that keeps your density looking natural all day.
How To Use
1. Apply fibres to clean, dry hair
2. Hold spray 10cm from hair
3. Spray 6-8 short bursts over fibre areas
4. Allow to dry naturally or use light heat
5. Enjoy all-day confidence
Ingredients
Ethanol, Water (Aqua), VP/DMAPA Acrylic Copolymer, Propylene Glycol, Fragrance (Parfum), PEG-40 Hydrogenated Castor Oil
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.
Damaged on Arrival? Free Replacement
If your bottle arrives damaged or the pump is faulty, we'll replace it immediately.
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.
Hair Fibre Locking Spray
what our 30,000+ customers say.
The locking spray is an absolute must. I used to worry about rain and wind ruining my look — now it stays perfect all day no matter what. Game changer.
see the difference.
How to use.
Apply Hair Guru London Fibres to clean, dry hair first.
Hold the bottle approximately 10cm from your hair.
Spray 6-8 short, even bursts over the fibre-applied areas.
Let air dry or use a hair dryer on a light setting. Enjoy all-day confidence.
We use Cotton.
- plant based & vegan
- naturally wraps around hair
- gentle on scalp
- undetectable
- animal proteins
- synthetic & made in lab
- risk of irritation
- visable & looks fake
real people, real results.
from the people.
Jo W.I got this for my partner to help with his confidence and even I was shocked at the result. I can't believe how well the product blends and looks so natural! Great customer service and fast delivery too!
Mark S.This really is the best on the market! The colour match is spot on and how it blends in to your natural hair is brilliant. I will always buy from here until I deceive to bite the bullet and get a hair transplant
Jake B.I can't believe how good these fibres are, tried two shades before getting the bigger pot. Was so skeptical before trying this
Simon T.Recently purchased the starter bundle and I've been using the products for a few days now. As a 34 year old man with an ever increasing forehead I needed some help. Instant results and easy to use. Thanks HG Team
Robert W.Thank you very much for my item you sent out , colour is brilliant
Frequently Asked Questions.
Our Locking Spray creates a fine, invisible bond between Hair Guru fibres and your natural hair. The micro-mist secures your style without stiffness or sticky residue, creating a waterproof, wind-resistant shield that keeps your density looking natural all day.
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.
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.
Yes. Once secured with the 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.
After applying your Hair Guru fibres, hold the spray about 20cm from your hair and apply 4–6 light mists over the fibre areas. Allow about a minute to dry. That’s it — you’re locked in for the day.
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.
Absolutely. Both our fibres and Locking Spray are made with gentle, cosmetic-grade ingredients. No harsh chemicals, no parabens, no sulfates. Safe for daily use, even on sensitive skin.
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 replacements for damaged or lost packages.
