Undetectable Results

Cover Every Gap. Own Every Room.

Hairline creeping back? Part getting wider? Thicker's keratin fibers bond instantly to existing hair - covering every thin spot so naturally, nobody knows but you.

Keratin Fibre

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

Iron Oxide

Natural pigments that deliver seamless, natural-looking hair colour and undetectable blending.

Sodium Bicarbonate

Keeps our fibre formula lightweight, non clumpy and scalp-friendly while ensuring an easy, comfortable wear.

Seconds to Apply. Impossible to Spot.

Invisible to the Eye

Works in Seconds

Water Resistant

100% Cruelty Free

Dermatologist Approved

Ships from New Zealand

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Found in salons & barbers across NZ

Thicker is trusted by hair professionals across New Zealand. Now you can get the same professional-grade results delivered straight to your door - no appointment needed.

FAQs

How Do I Use It?

Shake the fibres directly onto areas where coverage is needed, then gently pat your hair to lock them in place.

Will it look fake?

No — the fibres are made from keratin, the same protein as natural hair. They cling to your strands for a natural, seamless finish that blends perfectly.

How do I know it will match my hair?

We offer a full shade range designed to blend with natural tones. Many customers even mix two shades for a perfect match.

Will it last all day?

Yes — once applied and set, fibres stay put through work, workouts, and daily life. A light mist of finishing spray adds extra hold against wind, sweat, and light rain.

Is it safe for my scalp?

Absolutely. Our fibres are lightweight, breathable, and made from keratin — non-irritating, non-toxic, and safe for daily use.

Will it clog my scalp or affect hair growth?

No — fibres sit on the hair shaft, not the scalp, so they don’t block follicles or interfere with treatments like minoxidil.

What if I have curly or textured hair?

Fibres work on all hair types and textures, from straight to tightly curled, as long as there’s some hair for them to cling to.

Will it rub off on my pillow or clothes?

Once set, fibres stay in place. We recommend applying in the morning and washing out with shampoo at night.