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100% CLEAN, NON-IRRITATING
NO ANIMAL TESTING
FREE SHIPPING ON ALL U.S. ORDERS $200+
Lightweight & Breathable
Cruelty Free
Weather-Proof
Safe For All Hair Types
Undetectable

Who's Thicker Fibre For?

Social Seeker

For anyone who wants to feel confident at parties, on dates, or in photos — with instantly fuller-looking hair.

Career Climber

Perfect for professionals who want to quickly look sharp and self-assured under office lights, presentations, or client meetings.

Active Achiever

Made for people who sweat, train, and live outdoors. Fibres stay secure through workouts, wind, and daily movement.

Confidence Restorer

For those who simply want a quick fix to feel like themselves again. Restore natural fullness and confidence in the mirror every day.

Thicker

Instant Coverage

Fuller-looking hair in seconds, no waiting or regrowth needed.

Thicker

Undetectable Blend

Keratin fibres bond seamlessly with your natural hair for a real, natural look.

Thicker

All-Day Hold

Stays secure through work, workouts, and weather without rubbing off.

Three Natural Ingredients, Zero Compromise

Keratin Fibres

The same protein that makes up human hair, for a seamless blend that looks and feels real.

Thicker Hair, Instantly.

Frequently Asked Questions

Rated 4.8/5 by 821 Hair Restorers

Chris M

Black

Feels light on my scalp, not itchy.

Emily J

Black

My friend asked if I’d started some new hair treatment. Nope, just this. Couldn’t believe she didn’t see it was fibres.

Matt T

Black

Honestly feels like cheating — I shook it in, patted it down, and boom… hair looked thick again. Took like 30 seconds.

Olivia B

Brown

Used this before a friend’s wedding. Harsh daylight, a million photos, even dancing all night — my hair still looked full. Normally I’d avoid being in front of the camera, but this time I actually wanted pictures.

Rachel D

Blonde

Postpartum hair loss crushed me. I wore hats everywhere. Tried this before a brunch with the girls — not a single comment about my hair. Instead, people complimented my outfit again. Felt like me.

James W

Dark Brown

Zoom calls were the worst, every angle showed my thinning crown. Since using Thicker, I can sit under lights without obsessing. Makes online meetings bearable.

Amelia H

Dark Brown

I use it almost every day. Morning routine: shake, pat, spray. Takes under two minutes and makes my hair look years younger. I’ve worn it through rain, long commutes, even gym sessions — it holds up. Only downside is now my husband started using it too.

Josh E

Blonde

I was embarrassed about thinning at just 29. Photos with friends made me look older than everyone else. Bought Thicker before a holiday and honestly it changed the trip. Didn’t think about my hair once. Every photo? My hair looked dense and natural. It’s become my travel essential.

Sophie L

Brown

Didn’t expect much but it actually stayed put through a hot yoga class. No streaks, no weird patches.

Amelia H

Blonde

Blends with my natural color perfectly — no one can tell.

Michael S

Blonde

I’ve tried sprays, powders, and serums. Most looked fake or rubbed off on my collar. This one? Blended right in and didn’t budge. Finally something that works like it says.

Laura P

Dark Brown

For months I avoided photos, skipped social events, even pulled back from dating. It sounds shallow but hair loss eats at you. The first time I used this, I cried. I looked in the mirror and saw myself again. Not a miracle cure — just instant relief. That was enough.

Adam V

Brown

I don’t write reviews but had to for this. I went from avoiding eye contact with people (worried they’d stare at my scalp) to walking into work like I own the place. It’s not just appearance, it’s how it changes how you carry yourself. That’s the real value.

Daniel K

Black

Looked in the bathroom mirror at work and for the first time in years I wasn’t panicking about scalp showing.

Hannah R

Blonde

Ordered on a whim — now my sister steals it before nights out. We fight over the bottle lol.