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KERATIN

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Keratin Treatments

At HAKKARI, your modern hairdresser on the Elandsgracht in Amsterdam’s Jordaan, we offer professional keratin treatments that smooth, repair and protect your hair. Our treatments eliminate frizz, boost shine and make styling effortless — while keeping your hair soft, light and natural.

​​Keratin is a natural protein found in your hair. Our professional treatment replenishes that lost protein and seals the cuticle, creating a smooth, reflective surface that resists humidity and frizz.

Keratin Straight

Perfect for thick, coarse or virgin hair that needs strong smoothing and volume reduction. The result: a sleek, polished finish that lasts up to 4 – 6 months.

Keratin Botox

Ideal for fine, blonde or colour-treated hair. It strengthens, hydrates and smooths without removing volume — for lightweight, natural movement that lasts 2 – 3 months.

Treatment time: around 3 – 4 hours, depending on length and thickness.

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Keratin After Hair Transplant

I’ve had a hair transplant — what can I do to make my hair smoother?

If you’ve had a hair transplant and are wondering how to make your new growth softer, shinier and easier to manage, a gentle keratin treatment could be your next step.

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At HAKKARI, on Elandsgracht in Amsterdam’s Jordaan, we specialise in safe, low-heat keratin services designed to smooth and strengthen men’s hair after transplantation — restoring shine, control and natural movement once the scalp has healed.

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Once your scalp has healed, your hair deserves care too.

Our keratin treatment restores softness and shine
— gently, without scalp contact.

Book Your Keratin Treatment in Amsterdam

Visit HAKKARI, your trusted hairdresser in the Jordaan on the Elandsgracht, for a personalised keratin consultation. Our stylists will assess your hair and recommend the ideal treatment for your needs. Book Now to enjoy smoother, shinier, frizz-free hair with lasting results.

Frequently Asked Questions

Q. What is a keratin treatment? A. It’s a smoothing service that infuses the hair with keratin — the same protein your hair is made of — to eliminate frizz, enhance shine and make styling faster and easier.

Q. Is keratin safe for coloured or bleached hair? A. Yes. The gentler Keratin Botox formula is designed for coloured, highlighted or blonde hair and helps repair and protect it.

Q. Will keratin make my hair flat? A. No, Keratin Botox will not make your hair flat. It helps to build up and thicken the hair.

Q. What’s the difference between Keratin Straight and Keratin Botox? A. Keratin Straight smooths and reduces volume for stronger, thicker hair. Keratin Botox repairs and adds shine to finer, colour-treated hair without flattening it.

Q. How long does the keratin treatment take? A. Between 3–4 hours, depending on your hair length and density.

Q. How long does a keratin treatment last? A. Keratin Botox lasts about 2–3 months. Keratin Straight lasts around 4–6 months with correct home care.

Q. When can I colour my hair , when i have a keratin? A. You can colour it either just before, or 1–2 weeks after, your keratin treatment.

Q. Can I tie or wash my hair after the keratin treatment? A. Wait 48–72 hours before washing, tying, or tucking behind the ears — to allow the keratin to fully set.

Q. Is keratin safe for all hair types? A. Yes. Every keratin treatment is adjusted to your texture, hair history, and desired result.

Q. Does your keratin contain formaldehyde? A. We use safe, professional formulas with low-emission technology — no harsh fumes, no irritation.

Q. How do I maintain my results? A. Use sulfate-free shampoo and conditioner, avoid harsh water and schedule your next treatment before the effect fades completely.

Q. Is keratin suitable for men with hair transplant? A. Absolutely, especially on hair tranplant. It’s perfect for anyone dealing with frizz, waves, or coarse texture who wants smoother, easier hair.

Q. Will a keratin change how my transplanted hair grows? A. No. Keratin affects only the surface of existing hair, not the follicle or future growth.

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