Absolute straightening and maximum brightness of hair for up to 3 months

Absolute straightening

Before and after

HI Hair

Step by Step

Step 1

Wash your hair twice with Deep Clean Shampoo step 1, and let it act for 5 minutes on the second wash. Rinse hair completely until it is 100%.

NOTE: You need to let the shampoo act for 5 minutes only on the second wash

Step 2

Dry your hair 100%. Apply the Soothing Shampoo step 2 all over the hair and massage without rubbing the scalp, until a dense foam appears.

NOTE: Do no not add water. Let it act for 20 minutes and rinse thoroughly.

Step 3

Towel dry hair and apply Smooth Touch - step 3 from length to ends. Let it act for 10 minutes and rinse completely. Dry your hair 100%. Iron your hair from 10 to 12 times.

NOTE: At 230ºC for healthy hair. 180ºC-200ºC for damaged hair.

If you rather have only a VOLUME and FRIZZ REDUCTION you only need to FLAT IRON 3 to 5 times each lock at 180°C TEMPERATURE


Forget the permanent damage that other products can do to your hair

Hi-Hair Shampoo is formulated with 100% natural ingredients that are sourced from the Amazon rainforest. Ensuring that no chemical damage occurs and your hair returns to its natural style as soon as the straightening effect wears off.


yield 10


A single kit has the power to straighten your hair 5 to 10 times, depending on the length and volume of your hair!

Long hair

5 straightening (100 mL)

Medium hair

7 straightening (70mL)

Short hair

10 straightening (50 mL)

Hair Types

Transformation for all hair types


Protects the wires and seals the cuticles for a professional result and lasting “soft” effect!

Anti Frizz

Strengthens the hair strand by closing the cuticle. Your hair strong and full of life again


There is no color change and you will have soft and full of life hair to face the day to day


Before and after

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"It really works. I have shoulder length hair and it has frizz. After I used the product I didn't need to brush it anymore to remove the frizz because it dries naturally straight."
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"It was totally worth the investment. It changed my hair completely. It changed from having the frizz of curly hair to being straight and shiny every day."
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"I loved this product. My hair used to be very frizzy and very dry. After I started using this product my hair is much softer and easier to manage."
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"My honest review of this product, is that it works very well on my hair, it takes me around 2h to do and leaves my hair shiny. I made a good choice."

100% Natural and Vegan

No formaldehyde


For all hair types

clean beauty

The only straightening shampoo in the world

HI's Powerful Shampoo is the only one that has the exclusive NATURTECH™ natural compound, responsible for realigning the hair fiber, controlling volume and frizz in a safe way and compatible with all hair types.

Cupuaçu is typical fruit from northern Brazil, contains vitamins (retinol, thiamine, riboflavin, niacin, acid) with moisturizing, nourishing, protective and remineralizing properties, that guarantee shine and softness to the hair.


Recommended by top beauty professionals

Diogo Carlos
Diogo Carloshairdresser
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"I use and recommend the Hi Hair Care line!! It has great ease of application and a great yield, not to mention the quality of the Vegan Assets it contains! Apart from the incredible result I achieve with Hair Alignment!"
Denya Araujo
Denya Araujohairdresser
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"I use and recommend the Hi Hair Care line. In addition to being a vegan line, it is safe for me and my client, as it does not contain toxic assets. I get incredible treatment and hair alignment results."
Rick Cabral
Rick Cabralhairdresser
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"Hi provided me with high performance technology, delivering incredible results for the hair. Most importantly, she connected my clients with their social responsibility and sustainable beauty."
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"The HI Hair Care technology is one of the most sensitive and innovative technologies I have ever known, I've always dreamed of a product that has the respect I have when performing a procedure on a client, and she supplies me with everything even when aligning a hair structure! Feel the best on the market and then we'll talk!"
1 | 2 | 3

yields up to 10 straightening

16.90 oz

3 products

Waterproof Smoothening Professional Treatment Kit

The professional waterproof treatment leaves your hair smooth and treated for much longer and with an intense shine on a daily basis.

1 | 2 | 3 + 4 | 5

yields up to 10 straightening

16.90 oz

5 products

Waterproof Smoothening and Maintenance Kit

Have smooth and treated hair for much longer with the complete straightening + maintenance kit and see your hair healthy for months

Mini - 1 | 2 | 3

Yelds up to 2 apliccations

3.38 Oz

3 products

Waterproof Smoothening Professional Treatment Kit

The professional waterproof treatment leaves your hair smooth and treated for much longer and with an intense shine on a daily basis.


HI exclusive warranty

We believe that HI Shampoo can further revolutionize the cosmetics world market, and with that in mind, we decided to show how much we trust it the results of our product.

Therefore, if within 30 days for any reason and after following all the manufacturer instructions you are not satisfied with the results We will refund the value of the system.

Just prove that you didn't get results by following exactly the step by step and we'll give you your money back, no tricks. This is our way of showing how much we trust HI Shampoo!





It is a vegan hair treatment system, which will smooth the hair naturally, with botanical plant activating ingredients.

Following the instructions your result is smooth, manageable, shiny, soft hair with no frizz.

The results obtained will remain for approximately 15 days, and can be reapplied whenever necessary and the more often you apply, the more amazing the result is.

The effect of the Waterproof system gradually dissipates, returning the hair to its natural form, without compromising the hair structure. This is a gradual process.

Hi Waterproof system can be applied every 15 days to maintain the smoothing effect, volume reduction and frizz control. As more applications are made, the hair will become increasingly smooth, but as soon as you stop using the system, your hair returns to its natural state. We recommend using a flat iron to enhance the smoothing effect and longevity. Follow the instructions, flat ironing about 7 to 10 times each small hair section that you wish to have smooth, if you flatiron less than 3 to 5 times you will have an increase in volume. Make sure the flatiron temperature is set to a temperature according to the health of your hair. In this example with healthy hair, the hair will remain smooth for a longer period, approximately 2 to 3 months, before being reapplied.

Yes. The Waterproof system is compatible with all chemical services and can be used on bleached, highlighted, colored hair and other straightening systems.

Yes. The Waterproof system is very safe and gives you the ability to do other chemical services even on the same day. After finishing the Waterproof system, it is highly recommended that you use the shampoo and conditioner from the Hi Hair line to maintain the effective results. If you are going to perform another chemical service after the Hi Waterproof system, make sure you blow dry the hair 100% dry. Then proceed with the next chemical service. It is always recommended to that color, bleaching or highlighting be performed after the Hi Waterproof.

Yes. This system protects the hair from exposure to pool water, sea water or exposure to other environmental and climatic conditions. Durability will remain the same.

The products have raw materials developed with high technology, so, if you want, you can wash your hair even on the same day of the procedure, without compromising the result.

It is highly recommended to maintain the durability of the results obtained with the Waterproof system, is to use the Waterproof maintenance line. Comprised of Shampoo and Conditioner which contain the same active ingredients as the Hi Waterproof system hair treatment.

No. The active ingredients that promote the realignment of the hair fibers are derived from natural vegetable actives, which do not generate any type of waterproofing of the hair fibers. The hair will remain healthy.

Yes. Once the smoothing system has been achieved, you will be able to style the hair the way you want, either using a brush and blow dryer, or using a flat iron. This will not affect the desired result.

No. The Waterproof system realigns the hair fibers in a natural way, without compromising their structure. To make an updo, curls or brushed finished styles is no difficulty. It’s as if the hair has always been smooth and manageable.

The assets used in the Waterproof system are technologically advanced assets, extracted from natural plant sources, without toxic characteristics. These ingredients repair and protect the capillary structure. We also ensure that our ingredients do not harm the environment.

The main ingredients used for the realignment of the hair fiber are cupuaçu, linseed and alginate, in addition to a blend of organic acids widely used in skin treatments. All actives are of plant origin and synthesized in laboratories.

No. Our products are vegan and do not include any raw materials of animal origin, and we do not test on animals.

Yes! Our products are free of parabens, dyes and any other substances that could harm the environment. Our packaging is 100% recyclable.

Copyright © Hi Hair Care | All rights reserved
Water (Aqua), Disodium Laureth Sulfosuccinate, Cocamidopropyl Betaine, Cocamide DEA, Trisodium, Sulfosuccinate, Parfum, C12-14 Pareth-3, Sodium Chloride, Sodium PCA, Phenoxyethanol, Sodium Benzoate, Glycerin, Menthol, Theobroma Grandiflorum Fruit Extract, Disodium EDTA, Ethylhexylglycerin, Limonene, Linalool, Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone.
Water (Aqua), Disodium Laureth Sulfosuccinate, Glycolic Acid, Lactic Acid, Cocamidopropyl Betaine, Trisodium Sulfosuccinate, C12-14 Pareth-3, Sodium Chloride, Sodium Benzoate, Parfum, Salicylic Acid, Hyaluronic Acid, Thioctic Acid, Theobroma Grandiflorum Fruit Extract, Phenoxyethanol, Ethylhexylglycerin.
Water (Aqua), Cyclopentasiloxane, Cetearyl Alcohol, Propylene Glycol, Cetrimonium Chloride, Dimethicone, Persea Gratissima (Avocado) Oil, Cetyl Alcohol, Alcohol, Parfum, Theobroma, Grandiflorum Seed Butter, Linum Usitatissimum Seed Extract, Phenoxyethanol, Hydrolyzed Soy Protein, Hydrolyzed Wheat Protein, Hydrolyzed Corn Protein, BHT, Disodium EDTA, Ethylhexylglycerin, Limonene, Linalool, Hydrolyzed Rice Bran Protein, Algin, Hexyl Cinnamal, Kappaphycus Alvarezii Extract, Citric Acid, Laminaria Saccharina Extract, Citronellol, Alpha-Isomethyl, Ionone, Glycerin, Glycine, Arginine HCl, Panthenol, Creatine, Proline, Serine, Acetyl Cysteine.
Water (Aqua), Disodium Laureth Sulfosuccinate, Cocamidopropyl Betaine, PEG-120 Methyl Glucose Trioleate, Propylene Glycol, Trisodium Sulfosuccinate, Glycerin, Parfum, Sodium Chloride, C12-14, Pareth-3, Phenoxyethanol, Theobroma Grandiflorum Fruit Extract, Sodium Benzoate, Citric Acid, Guar Hydroxypropyltrimonium Chloride, Polyquaternium-7, Disodium EDTA, Ethylhexylglycerin, Limonene, Linalool, Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone.
Water (Aqua), Cetearyl Alcohol, Cetrimonium Chloride, Alcohol, Cetyl Alcohol, Glycerin, Linum, Usitatissimum Seed Extract, Parfum, Polyquaternium-7, Phenoxyethanol, Theobroma Grandiflorum, Seed Butter, BHT, Algin, Disodium EDTA, Ethylhexylglycerin, D-Limonene, Linalool, Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone.