Female Hair Fibres
confidence boost in a few seconds
- Shake in, quick coverage
- Designed By Women For Women
- Non-toxic, 100% natural vegan cotton
- There is a colour to suit everyone
- Colour doesn't run — even in sweat or rain
- Feel confident FAST!
- Wrong colour? We'll swap it for free
GET FULLER-LOOKING HAIR IN SECONDS
⭐⭐⭐⭐⭐ Average 4.8 stars — Trusted by thousands of women
- ✔️ Shake in, quick coverage
- ✔️ Non-toxic, natural, vegan
- ✔️ Designed By Women For Women
- ✔️ There is a color to suit everyone
- ✔️ Color doesn't run
- ✔️ Feel confident FAST!
Each bottle of fibres lasts for 3 months with daily use
How Do Our Female Hair Fibers Work? 💖
Natural cotton microfibers cling to the hair shaft making it appear up to 10 times thicker.
Fibers instantly conceal thinning hair and a visible scalp, giving volume and coverage.
The color won't run, even if you sweat or get caught in the rain — they stay in place until your next shampoo.
Conceal Thinning Hair In A Few Easy Steps
Apply to clean dry hair. Shake directly onto thinning area. Use fingertips to blend in with your existing hair.
STEP 01
Start with clean, dry hair
STEP 02
Shake bottle to loosen the fibers
STEP 03
Shake on to the part or hairline and blend in with your fingers
Fibers That Are Kind To The Most Delicate Hair
Made From 100% NATURAL, Vegan Cotton Fibers
Klynein is designed to support women experiencing the effects of hair loss. It's made from 100% natural cotton, unlike other keratin based hair fibers that contain a long list of chemicals. Use our natural fibers with confidence knowing they will not contribute to hair stress or shedding.
Try Klynein 100% Risk-Free
FREE COLOR SWAP
Don't love the colour you chose? We offer a free color swap with your first purchase.
What's Included:
- 1 x Bottle 25g Hair Fibres
- Won't Run When You Sweat
- Colour Fast — Won't run
- 9 Colour Options
- 3 months supply with daily use
What Do Our Customers Say?
"It really does make my hair look fuller and thicker. Plus it's easy to use with no mess or cleaning up!"
— Jill
"I actually can't live without this product now! I've had thinning hair since having my children, but now I've never felt more confident!"
— Rachel
"I'm amazed how quickly and easily I can conceal my wide part or thinning areas!"
— Viv
FAQS
What is KLYNEIN?
Klynein is an instant hair loss concealer. Tiny micro cotton fibers cling to fine and thinning areas of hair instantly making it appear fuller and thicker.
What is KLYNEIN made from?
Klynein female hair fibers are made from natural cotton and are completely vegan, unlike many other brands on the market.
How do I apply KLYNEIN™?
Use Klynein on clean dry hair. Shake Klynein onto thinning area and then using your fingertips, blend in with your existing hair. Repeat until desired effect is achieved. For best results and maximum electrostatic cling, use on clean blow dried hair.
Our precision applicator is fantastic for using around the hairline, or in areas that you'd like a little more control. Shake the bottle, and press down fully on the applicator to diffuse the hair fibres.
Does KLYNEIN work for everyone?
Our Klynein fibers do need some hair to cling to, no matter how fine. However if you have a completely bald area, you will love our RootZ concealer which can conceal bare patches of scalp, and fine and thinning areas, as well as concealing any gray hairs.
What colors are available?
Klynein female hair fibers come in 9 salon shades specifically designed for women.
How do I know which colour to choose?
Select the shade closest to your natural color, or the color you're dyeing your hair. If in doubt, a slightly darker tone tends to look more natural.
Lots of ladies love to mix their shades to get the best match, so the 2 bottle Value Bundle can be an ideal place to start.
When applying two colors, use the darkest shade first, and then apply the lighter shade on top, blending in with your fingertips.
Is KLYNEIN safe to use everyday?
Klynein female hair fibers are natural cotton based and are safe to use everyday. They don't clog your hair follicles, and are non irritating, unlike many other keratin based brands on the market.
How long does KLYNEIN last?
Our Klynein female hair fibers are wind, sweat and rain resistant! They'll stay in place until you shampoo them out!
What happens if my hair gets wet?
Our Klynein female hair fibers are colorfast, and won't run if you get caught in the rain! So your secret is safe with us. They are also sweat resistant, so you can wear them to the gym or out on a run and enjoy the extra confidence boost, without worry that any color will run.
Will KLYNEIN stain my hands or clothes?
Klynein does not stain. The fibers and colours are water soluble.
What if I've ordered the wrong colour?
No problem. We offer a free color swap to all new customers if the color you choose is not quite right. Reach out to our Customer Care team and we'll be happy to sort it out for you!
100% COLOR GUARANTEE — Not sure of your color? We'll swap it for free, no questions asked.
How Do Klynein Female Hair Fibres Work? 💖
Natural cotton microfibers cling to the hair shaft making it appear up to 10x thicker — instantly.
Start with clean, dry hair
Hair fibres work best on clean, blow-dried hair for maximum electrostatic cling.
Shake onto thinning area
Hold bottle upside down and shake directly onto the part, crown or hairline.
Blend with your fingertips
Gently blend with your fingers. Repeat until desired coverage is achieved.
Kind To The Most Delicate Hair
Klynein is designed to support women experiencing the effects of hair loss. Made from 100% natural cotton — unlike other keratin-based fibres packed with chemicals. Our cotton fibres are non-irritating, safe for everyday use, and won't clog your hair follicles or contribute to shedding.
Real Women, Real Results
Before & after — unfiltered, unedited.
"It really does make my hair look fuller and thicker. Plus it's easy to use with no mess or cleaning up!"
"I actually can't live without this product now! I've had thinning hair since having my children, but now I've never felt more confident!"
"I'm amazed how quickly and easily I can conceal my wide part or thinning areas! My confidence is back."
What Our Customers Say
Join thousands of women who found their confidence again.
"I have used several brands of hair fibres. Klynein is my favourite. It doesn't cause itching as some products do. The coverage looks natural and no shiny scalp shows. Love this product."
"These don't clump and they don't run. Also, because they are made of cotton (and not keratin), they are less irritating. Klynein has saved my confidence since going through menopause."
"My hair is now so thin, I probably wouldn't go out if I didn't have this product to rely on. The dusky dark brown shade matches my hair perfectly. A lifesaver."
"I bought this a few weeks ago and I just had to say I am really impressed. It has worked wonders on the crown of my head where I had a very thin patch. Thank you!"
"After chemo my hair grew back but is thin on top. Pink scalp showed through thin gray hair. To my surprise, application of Klynein virtually eliminated the view. It also stays in very well."
"I've been using it for over a year now. I style my hair, shake the product, spray a little hairspray and I have pretty, thick and luxurious looking hair. Can't live without it!"
🎨 100% Colour Match Guarantee
Not sure which colour is right for you? Don't worry — we offer a free colour swap on your first purchase, no questions asked.
What Makes Klynein Different?
Most hair fibres are made from keratin (animal-derived chemicals). Klynein is different.
100% Natural Cotton
Vegan, plant-based fibres you can feel good about. Not a single animal product.
Colour Won't Run
Rain, sweat, gym — no problem. Klynein stays put until your next shampoo.
Made For Women
9 shades specifically developed to match female hair colours — not repurposed men's products.
No Itching
Cotton fibres are non-irritating. Keratin fibres are notorious for causing itching and scalp discomfort.
Klynein vs Other Hair Fibres
| Klynein ✨ | Other Brands | |
|---|---|---|
| 100% Natural Cotton | ✔ | ✗ |
| Vegan & cruelty-free | ✔ | Often not |
| Won't cause itching | ✔ | ✗ |
| Designed by women | ✔ | ✗ |
| Colourfast in rain & sweat | ✔ | Varies |
| Free colour swap guarantee | ✔ | ✗ |
Frequently Asked Questions
What is KLYNEIN?
What is KLYNEIN made from?
How do I apply KLYNEIN™?
Our precision applicator is fantastic for hairline and temple areas.
What colours are available?
How do I know which colour to choose?
Is KLYNEIN safe for everyday use?
How long will KLYNEIN stay in place?
What happens if my hair gets wet?
What if I ordered the wrong colour?
Does KLYNEIN work for everyone?
Ready to Feel Confident Again?
Join thousands of women who've found their confidence with Klynein Female Hair Fibres. 9 shades. Natural cotton. No chemicals. Just fuller-looking hair in seconds.
Choose Your Colour →