THIKK hair fibres before and after

Welcome to THIKK

You've just found the most natural instant hair thickening solution on the market.

100% natural keratin with biotin. Thicker-looking hair in 30 seconds, for men and women.

Every review is 5 stars

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Then 10% off every refill. Skip or cancel any time.

  • 30 secsFrom thin to full
  • Wind & rainStays put all day
  • 9 shadesMade for everyone
  • Washes outWith your usual shampoo

Why choose THIKK?

  • 100% natural keratin

    The same protein as your own hair. Nothing synthetic.

  • Infused with biotin

    Added biotin for a fuller, thicker look.

  • Results in 30 secs

    Shake on, pat in. Done.

  • Nobody can tell

    Static holds it to every strand, in wind and rain.

Instant results.

Before and after.

Simply shake and go. Real THIKK customers, fibres only. No filters. Swipe for more.

  • Nobody can tell.
    Nobody can tell.Dark Brown. Matched to the roots.
  • Wide parting, gone.
    Wide parting, gone.Fibres only. Designed for everyone.
  • Thin crown, filled.
    Thin crown, filled.Light Brown. Blended with fingertips.
  • Curls covered.
    Curls covered.Black. Built up gently over the crown.
  • Fuller in seconds.
    Fuller in seconds.Black. Fibres on dry hair.
  • Thinning patch, hidden.
    Thinning patch, hidden.Black. Same fibres, any hair type.
Shop the fibres

9 shades

Pick the one that matches.

Match your roots. Between two? Go for the darker one. 5g £9.99, 15g £15.99, 30g £26.99.

See it go on

How it works

The secret is static.

Each keratin fibre carries a natural static charge. Shake them over your hair and they cling to every strand, so each one looks thicker and the scalp disappears.

  • Natural keratin

    The same protein as your hair, coloured to match.

  • Static cling

    Fibres wrap round each strand like a magnet.

  • Holds all day

    Through wind, rain and the gym.

  • Nobody can tell

    Match your roots and it looks like your own hair.

Find my shade

How to use. 3 steps.

  1. Step 1 Style dry hair.
  2. Step 2 Shake over thin areas.
  3. Step 3 Pat in. Done.

What you say

Don't take our word for it.

5.0 from 11 verified reviews
  • ★★★★★

    I can’t tell you how many products I’ve tried to try thicken my hair. This is just unbelievable. I’m so happy that I found THIKK! I love that it’s hundred percent natural and it’s got biotin in! Thank you!! Subscribed !

    Verified customerSubscriber
  • ★★★★★

    Great product, works really well! Got my exact colour. Would recommend.

    Jordan B.Verified buyer
  • ★★★★★

    Great product, makes a real difference

    A. GreatorexVerified buyer
Read all reviews

Our story

Made at the chair.

THIKK started at Dickeybow, Karl's salon in Wakefield and Leeds, where clients kept asking how to make their hair look thicker. Karl and Joe built the answer in West Yorkshire, tested it on real clients and made it for everyone.

Read our story
Made at the chair.
Made at the chair.
Made at the chair.
Made at the chair.
Made at the chair.
Made at the chair.

Let's assess your hair loss.

Which product is for you?

Three stages, three honest answers. Pick a solution that suits you.

  • Thin hair, bald spots or a thin parting / hairline

    Fibres that cling to what you have and fill the gaps in seconds.

    Best match THIKK Hair Fibres
    Shop fibres

  • Crown, temples or receding hairline

    Fibres, plus the spray applicator to aim them and Lock & Hold to set them.

    Best match, coming soon The THIKK system
    Get early access

  • Little or no hair left to work with

    A hair system, fitted by Karl.

    Best match THIKK Hair Systems
    Book a free consultation

Still not sure? Ask us. We will tell you straight.

THIKK Hair Systems

Your hair back. Your confidence with it.

For when fibres aren't enough. Bespoke, ultra-thin hair systems, partial or full, cut and blended by Karl so they look like they grew there.

Start with a free 30-minute consultation. No pressure, no obligation.

Book a free consultation

Private appointments. Nothing is shared without your say-so.

Honest options

Fibres, hair system or transplant?

We do the first two. Here is how all three stack up.

THIKK FibresTHIKK Hair SystemTransplant
See a differenceIn 30 secondsFrom your fittingAround 12 to 18 months
No surgery Yes Yes No
Works with very little hair No Yes No
Change your mindWashes outRemovablePermanent
Cost to startFrom £9.99Free consultationUsually thousands

Transplant timings and costs are typical UK ranges. Speak to a clinic for your own.

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30% off your first order on every size, then 10% off every delivery after.

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30% Off your first orderThen 10% off every refill. Every size.

Questions

Asked. Answered.

Anything else? Get in touch.

Will people be able to tell?

Not when the shade is right. THIKK fibres are keratin, the same protein as your hair. They cling to each strand with natural static, so they look like part of your hair instead of sitting on your scalp.

Does it stay put in wind, rain or at the gym?

Yes. It stays put all day until you wash it out with shampoo.

Which shade should I get?

Match the colour at your roots, not the ends. If you are between two shades, pick the darker one. It blends better than going lighter. Not sure? Start with the 5g sample.

How long does a bottle last?

Used every day, a 15g lasts up to about 4 weeks and a 30g up to about 8 weeks, depending on how fine your hair is. The 5g is for trying your shade.

Do the fibres make hair grow?

No. Fibres are cosmetic. They make the hair you have look thicker the second they go on, and they wash out at night.

Is THIKK for men or women?

Both. THIKK is designed for everyone, on all hair types.

What if fibres are not enough?

Fibres need some hair to cling to. If there is not much left in an area, a hair system is the better answer. Book a free 30 minute consultation with Karl.

How much is delivery?

Free UK delivery on orders over £25.

30% off your first orderSubscribe and save. Free UK delivery over £25.
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