4.8 out of 5 11828 reviews

Hair Building Fibers 23g - Hair Loss Concealer - Cover the gaps and roots

£19.99 GBP £25.00 GBP
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Proven Results Since 2012
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Doctor's photo

"Quality dedicated hair growth treatments such as the Watermans range is an excellent starting point to consider. Diligent use for 3–4 months can see a reduction in hair thinning and the hope of healthier hair growth"

Dr Anthony Pearce - Specialist Trichologist

InstaHair® Hair Building Fibres 23g – Disguise Thinning Hair & Rediscover Confidence Instantly

Feel trapped by thinning hair, exposed scalp, or patchy roots? You're not alone. Many experience insecurity, embarrassment, and frustration as hair loss chips away at their confidence. Whether it’s caused by stress, hormones, postpartum changes, or genetics, the emotional weight is real. But what if the solution was just seconds away?

InstaHair® Hair Fibres are your instant confidence boost — helping you look in the mirror and love what you see again. Made for both men and women, this powerful concealer delivers salon-style results from the comfort of home, hiding visible scalp, grey roots, or regrowth in seconds. Because no one should feel invisible because of their hair.

Who It’s For

Perfect for anyone who feels insecure, self-conscious, or defeated by thinning hair, sparse spots, or exposed roots. Whether you're preparing for a night out, a job interview, a photo shoot, or just want to feel like yourself again — InstaHair® empowers you to feel confident, seen, and in control. Suitable for all genders, ages, and hair types.

Why Choose InstaHair® Hair Building Fibres

  • Instant Transformation: Conceals visible thinning, scalp gaps, root regrowth, and even that see-through scalp — for fuller-looking hair in seconds. Perfect for enhancing and defining your hairline, giving the illusion of a thicker, healthier frame to your face instantly.
  • Salon-Worthy Finish: Delivers flawless results with natural keratin fibres that blend seamlessly into your real hair.
  • Natural Keratin-Based: Made from wool-derived keratin, nearly identical to human hair for a natural appearance even under bright lights.
  • Smudge-Free & Colour-Safe: Won’t stain skin, clothing, or pillowcases. Your secret stays safe — even close-up.
  • Weatherproof Confidence: Sweat-, rain-, wind-, and humidity-resistant so you can live fully without worrying about your hair.
  • Available in Multiple Shades: Choose from a wide range of colours to perfectly match your natural tone for a flawless finish.

How It Works

InstaHair® fibres are electrostatically charged to cling tightly to even the finest hairs, instantly disguising bald spots or thinning areas. Simply shake the fibres over the desired area and pat gently. Lock in place with your favourite hairspray for all-day wear. When you're ready, just shampoo it out — easy, clean, and residue-free.

Why Millions Trust Watermans

  • Trusted by hair and makeup professionals in the film and television industry
  • Used by millions globally since 2012
  • Recommended by trichologists, hairstylists, and beauty experts
  • Part of Watermans' award-winning range of Hair Loss Products
  • Watermans has been helping millions of clients since 2012 all over the world, restoring people’s confidence

Don’t let hair loss steal your self-esteem. Take control in seconds with InstaHair®. It’s the perfect companion while you're waiting for your long-term results from Grow Me® Shampoo and Grow More® Elixir — giving you that instant confidence boost you deserve. Add to cart now and experience the power of instant transformation, wherever life takes you.

hair fibres for women

why watermans

All testimonials are by real people and may not reflect the typical purchaser’s experience and are not intended to represent or guarantee that anyone will achieve the same or similar results.

Grow Me Consumer Study

*Claims data based on a study of 104 Females and 18 Males using a blank label
unbranded bottle of Grow Me Shampoo 4 times per week for 3 months.
Full report available on requested to Dr's and Government departments only.

👨🏼‍🦲 Covers Thinning Hair & Bald Spots⁣ - ⏳ Works in Just 30 seconds⁣
Cover bald patches and fine hair that's effecting your self confidence while Watermans other products is working their magic. 

Hair Building Fibres are an instant hair loss concealer for thinning Hair for women and men. Hair Fibres Create the Appearance of Naturally Thicker, Fuller Hair.

Hair Fibres are Natural, safe and Blend Undetectably with Your Existing Hair. Conceals transparent thinning hair problems, Instant Results. Suitable for Men & Women.

Benefits 
Works in Just 30 Seconds

Suitable for Men & Women

Natural, Safe and Blend Undetectably with Your Natural Hair

Create the Appearance of Naturally Thicker, Fuller Hair

Cellulose, Hydrolyzed Corn Protein, Cellulose Gum, Dodecylebenzene Sulfonic Acid, Ammonium Bicarbonate, CI 15985, CI 42090, CI 16185

Hair building fibres are a revolutionary solution for those struggling with thinning hair or hair loss. These tiny fibres are made from natural, keratin-based proteins that closely mimic the look and feel of real hair. When applied to the scalp, hair building fibres can instantly create the appearance of fuller, thicker hair, giving you the confidence and boost you need to feel your best.

One of the best things about hair building fibres is that they are incredibly easy to use. Simply sprinkle the fibers over thinning areas of the scalp, and then gently pat and style your hair to blend them in. The fibers will automatically bond with your natural hair, creating a seamless, natural-looking result.

Hair building fibres are also a great solution for those who want to conceal hair loss or thinning areas. Whether you are dealing with male or female pattern baldness, alopecia, or other types of hair loss, hair building fibres can help you achieve the look of a full, healthy head of hair in just seconds.

One of the key factors to consider when choosing hair building fibres is the quality of the product. It's important to choose a brand like Watermans that uses high-quality, natural ingredients that are gentle on the scalp and hair. You should also look for a product that offers a wide range of shades to match your natural hair colour, as well as one that is easy to apply and stays in place all day.

If you are struggling with thinning hair or hair loss, hair building fibres may be just what you need to boost your confidence and feel your best. Whether you are looking to conceal thinning areas or simply want to create the appearance of fuller, thicker hair, hair building fibres can help you achieve the look you want. So why wait? Try hair building fibres today and see the amazing results for yourself!

Experts Speak

Clinical backed by leading experts. Discover why right here.

Customer Reviews

Based on 37 reviews
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R
Ruth Turner (England, United Kingdom)
Love love love!

Thank you Watermans once again! I have been using your shampoo and elixir since beginning February and have some new regrowth and better quality hair (had a set back after using Olaplex No. 3 in June and lost a load of hair sadly) but it is gradually returning to how it was I think albeit slowly.

Using these fibres to hide the bald spots. Work amazingly well and gives me comfort to know I can hide that bald bits at the back while the shampoo and elixir are doing their thing.

Also on the vitamins now so hope to see even more results in the months to come.

Please don't change any of your range. You're saving peoples' self esteem which is one of the biggest achievements you could ever accomplish in life.

I will never stop using your products they have given me hope when I was at rock bottom before.

N
N.D. (Scotland, United Kingdom)
Excellent product

Excellent product for men/woman looking to cover thinning areas of hair. Gives you confidence back!!

E
Emma Wigmore Wigmore (City of Zagreb, Croatia)
Like magic!

I recently purchased the Hair Building Fibres- Dark Brown and I am thrilled with the results. Due to my thinning line I was looking for something to give my hair a thicker appearance. With just a shake of this magic powder my scalp is no longer visible and the colour is the perfect match too. I simply sprinkle along my parting and set with spray. It stays put until the next time I wash my hair and leaves no nasty residue. I have recommended this product to my sister and will continue to use it.
Thank you Watermans for restoring my self confidence :-)

G
Gill Thompson (England, United Kingdom)
Excellent product

My hair is so thin but it looks so different when I use this product. Can highly recommend

N
Nikita Ireland (England, United Kingdom)
Confidence boost

After being peri menopause for a few years and thinning quite a bit because of it! This gave me a real confidence boost!

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