Hair Straightening Kit | Gold DIAMOND Hair Surgery | Formaldehyde-Free

The best treatment of 2025

Hair Straightening Kit | Gold DIAMOND Hair Surgery | Formaldehyde-Free

THE BEST STRAIGHTENING TREATMENT FOR COLORED HAIR

Special treatment for dyed and bleached hair , and suitable for previously straightened hair .

Hair surgery performs an intensive reconstruction of the hair fiber in extremely dry, highlighted, porous or chemically weakened hair, while straightening , adding shine and softness , leaving the hair manageable and frizz-free .

Intensive hair reconstruction

Smoothing with shine and softness

Ideal for dyed/bleached hair

Suitable for previously straightened hair

WARRANTY:

Satisfaction guaranteed or your money back

€79.98
Paga a plazos con Método de pago
€79.98
€99.98
Paga a plazos con Método de pago

Quantity and size

Shipping throughout Spain in 24-48 hours

Satisfaction guaranteed or your money back

Used by professional stylists

What does the kit include?

A system designed to rebuild and smooth hair sensitized by color and chemical processes.


Includes:

🧴 Step 1 · Pre-Treatment Shampoo (anti-residue): deeply cleanses and prepares the fiber .

🧖‍♀️ Step 2 · Hair Surgery (reconstruction): smooths , rebuilds damaged fiber and leaves hair soft, shiny and frizz-free.

Why didn't my hair straightening treatment work or why didn't it turn out well?

In 99% of cases, straightening fails because the right iron was not used or the correct temperature was not used .


For the product to activate and seal correctly, it is ESSENTIAL to use:

Iron with 100% TITANIUM plates (not ceramic, not tourmaline, not coated)
Minimum temperature of 230°C (450°F) — always at MAXIMUM power


⚡ If you use our Lizze Extreme iron, it should be set to 250°C

If the temperature is low or the straightener is not titanium, the product will not seal and the hair will not be straight , even if you have done the rest of the process correctly.

How do I use it?

Rebuild and smooth your hair at home with a quick and precise protocol for a polished, shiny, and frizz-free finish.

Step 1: Prepare
Wash with Pre-Treatment Shampoo 2–3 times until all residue is removed. Dry completely (preferably with cool air).

Step 2: Apply
Shake the product. Divide into quadrants and apply with a brush to thin strands starting at the nape of the neck, leaving 1 cm from the roots . Avoid excess product and the scalp.

Step 3: Rest
Leave to act for 15–20 minutes in the air .

Step 4: Dry and seal
Dry on low power with hot air and a brush. Straighten at 230°C : 25–30 passes on roots/mid-lengths and 15–20 on ends .

Step 5: Wash and finish
After 20 minutes , remove completely with your usual wash (shampoo + mask).

Benefits

A complete hair care experience.

✔️ Rebuilds the fiber in dry, porous and chemically weakened hair.

✔️ Smooths and reduces frizz , with shine and softness .

✔️ Restores the appearance of hair after dyes and bleaching .

✔️ Compatible with previous straightening .

Main ingredients

Active ingredients that strengthen and nourish:


🌸 Keratin (keratin): repairs the fiber damaged by chemicals ( dyes, bleaching ), fills cracks and restores strength and structure .
🌸 Natural oils: act as nourishing and conditioning agents ; they combat extreme dryness , seal in moisture , and provide the characteristic shine and softness of the treatment.

Notice to customers in the United States

The customs charge (approximately $54) that some orders receive is not applied by our company, but by US Customs and Border Protection due to a legal change effective September 2025 that eliminates the de minimis exemption for imports. This duty is mandatory and beyond our control. Thank you for your understanding.

How long does the treatment last?

Buy with confidence: straight hair or your money back.

Special treatment for dyed and bleached hair , suitable for previously straightened hair.


It performs an intensive reconstruction of the fiber in extremely dry, highlighted, porous or chemically weakened hair, while smoothing , adding shine and softness , and leaving hair manageable and frizz-free .

🧴 Treatment duration:

  • Smooth effect and frizz control: 5 months .

💡 Ideal for those looking for:

  • Deep reconstruction for dyed/bleached hair.
  • Smoothing with shine and a silky feel .
  • Visible results on very dry or porous hair.

👉 Tip: For dyed or bleached hair, prioritize deep hydration and UV/thermal protection ; avoid products with salt/sulfates to preserve shine and durability.

You're going to miss out!

The units are flying off the shelves... and you still don't have one.

The kit that truly hydrates porous and damaged hair , respecting the color and previous straightening treatments .

Results or refund

Guaranteed trust

Natural shine

Lasting softness

Formaldehyde-free

Healthy hair

Hair hydration

Professional straightening

Natural shine

Lasting softness

Hair repair

Fiber care

Formaldehyde-free

Suitable for color

Step by step

1

Prepare and clean

Wash your hair with the pre-treatment shampoo 2–3 times (or until all residue is removed ). Dry completely (air dry or with a hairdryer on cool air ).

2

Applies by sections

Shake the product well. Divide into quadrants and work in thin strands . Apply with a brush from the nape of the neck upwards , leaving 1 cm from the roots .

3

Let it work.

Leave to air dry for 15–20 minutes . Then, dry completely with a hairdryer on low heat , using warm air and a brush/comb .

4

Heat seal

Divide the hair into quadrants again and work with thin strands. Straighten strand by strand with a 100% titanium plate flat iron at 230°C , making 25–30 passes over the roots and mid-lengths , and 15–20 passes over the ends .

5

Final wash

Wait 20 minutes and remove the product completely with your usual wash (shampoo and mask).

Why choose our hair transplant surgery?

Compare for yourself what our professional treatment offers versus other options on the market.

Hair transplant surgery

Others

Hair repair

Hair reconstruction

Especially for dyed and bleached hair

Reduces frizz

Suitable for use after straightening treatments

Let our customers speak for us

Customer Reviews

Based on 50 reviews
76%
(38)
14%
(7)
10%
(5)
0%
(0)
0%
(0)
L
Luz Daira Marquinez Rivas

Excelente producto, los resultados son los esperados, un cabello sano, liso y brillante.
💯% recomendable sin lugar a dudas.

K
Kenneth piccolo

Reenviaron el producto porque la empresa que lo mueve lo perdió! pero ya recibí el producto! Muy bueno!

M
Minerva

Great product

L
Luz Adriana Giraldo Buriticá
No queda bien liso he usado muchas queratinas pero esta no es como pensaba

No me ha quedado como se ve en el vídeo compré hasta la misma plancha pero no UEFA liso se lava y se esponja calma un poco el rizado pero nada como la queratina brasileña

H
Hassa Med
No alisa del todo

Lo he comprado con la ilusion de alisar mi cabello , la primera vez lo aplique y le dio algo de brillo al pelo y relajo algo la.onda , al no ver el resultado esperado, al mes repeti aplicacion y compre plancha que calienta 450 grados y tampoco logre alisado del cabello , sino un poco de relajacion de la onda del cabello. Creo que a futuro probaria otro producto que realmente cumpliera su promesa de venta .

Boost your straightening with these essentials

Do you want your straightening treatment to last longer and look even more spectacular?

Complete your routine with our recommended products and get salon-quality results for longer.

Perfect hair also needs perfect maintenance!

  • Daily use

  • After the Straightening

  • Other Kits

Title
Title
Title

Frequent questions

What type of hair is this treatment really for?

For dyed and bleached hair ; it is also suitable for previously straightened hair , especially if it is very dry, porous or chemically weakened .

Why didn't my hair straightening treatment work or why didn't it turn out well?

In 99% of cases, straightening fails because the right iron was not used or the correct temperature was not used .


For the product to activate and seal correctly, it is ESSENTIAL to use:

Iron with 100% TITANIUM plates (not ceramic, not tourmaline, not coated)
Minimum temperature of 230°C (450°F) — always at MAXIMUM power


⚡ If you use our Lizze Extreme iron, it should be set to 250°C

If the temperature is low or the straightener is not titanium, the product will not seal and the hair will not be straight , even if you have done the rest of the process correctly.

How long does the result last?

Around 5 months (depending on hair type and aftercare).

Can I use it if I've already had a hair straightening treatment before?

Yes, it is suitable for previously straightened hair .

I have highlights and porous hair, is it suitable?

Yes, it's designed for hair with highlights and porous hair .

What happens if the straightening treatment doesn't work for me or doesn't turn out well?

It's very rare for this to happen if you follow the instructions correctly and use a flat iron with 100% titanium plates at 230°C , but we still want you to buy with complete peace of mind. We're so confident in our product that we offer a real guarantee : if you don't get results, we'll give you your money back. No hassle, no fine print.

Hair Straightening Kit | Gold DIAMOND Hair Surgery | Formaldehyde-Free

€79.98
€99.98