Instant Hair Building Fibres
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What is Kalvass ?
An instant hair concealer powder made from natural cotton microfibres designed to cover thinning areas and bald spots in just 10 seconds, without surgery or heavy treatments.
If it’s water-resistant, how do I remove it ?
Just wash with your usual shampoo to remove the powder.
What if I have fully bald spots ?
Even in areas that appear bald, there are often fine or light hairs still present.
The fibres are designed to cling to those strands, filling in gaps and creating a natural-looking density.
That’s how Kalvass delivers an even finish even with significant hair thinning.
Is it safe for my scalp ?
99% natural. No harsh chemicals. Safe for sensitive scalps.
Does it really last all day ?
All-day hold, even with sweat or humidity. One 15g jar lasts around 30 to 35 uses.
How does it work exactly ?
Electrostatic adhesion: the cotton microfibres are positively charged.
Hair bonding: they cling to the cuticles of each strand, even the finest and nearly invisible ones, instantly creating a fuller, denser look.
Long-lasting hold: this natural grip keeps the fibres in place, even in the shower, at the gym, or in the wind.
How to apply it ?
Apply a small amount to dry hair, focusing on areas you want to conceal. Blend with the applicator or your fingers, then use a light fixing spray if needed. Visible results in just 10 seconds.
Shipping & Returns
Fast shipping (6 to 8 business days) – Free on orders over 39,99 £!
30-day returns if you're not satisfied.
(+2000 verified reviews)
Some feedback from our customers
Impressive results !


Instant confidence boost
Nº1 For good reason
