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(15 customer reviews)

Amino-15: Hair Straightening System

Version 2

Our amazing hair straightening system delivers 6+ months of straight & rejuvenated hair. All while being vegan and full of natural goodness.

You can also pay in instalments via Klarna

This product is only available to professionals

Please sign in with your professional account or press the button below to sign up for a professional account.  

What's in our product?

We believe in transparency and as such, our training goes to great lengths to explain every single ingredient used in our products. Below is an overview of some of the main ingredients used in the Amino-15 Hair Straightening System.

  • 15 Amino Acids

    This innovative blend works by bonding with the weakened proteins in damaged hair, effectively restoring its structure and integrity. It also infuses hair with essential nutrients, enhancing moisture retention and safeguarding against environmental stressors.

  • Sea Buckthorn Oil

    Contains vitamins E and C, as well as omega-3 and omega-6 fatty acids, which nourish and strengthen hair.

  • Carob Seed Extract

    A range of amino acids, peptides & molecules are extracted from this nourishing seed. They are imbued into the hair during the straightening process.

  • Ceramide 2 Analogue

    Our Ceramide Analogue is a lipid-like molecule found in hair that seals the hair cuticle, removing frizz caused by lifted hair cuticles.

  • Vitamin E

    Vitamin E is found in many fruits, vegetables & seeds, and is a powerful anti-oxidant. It protects your hair from oxidative damage & free radicals.

  • Coco-Caprylate

    Coco-caprylate is a light and silky emollient, derived from coconuts, that can make your hair feel smoother, softer, and more manageable. It helps to reduce frizz and enhance the performance of other hair care ingredients.

Proven results

Our claims are tested by an independent laboratory, meaning you can expect these results on your clients. 

42%
Stronger hair
58%
Less split ends
80%
Healthier hair
93%
Shinier hair
47%
Increased hair protection
80%
Softer hair

Overall, 91% of women surveyed would recommend Rejuvenum to a friend.

Rejuvenum vs. Conventional Straightening Treatments

Rejuvenum Treatment

Creates new bonds
Strengthens hair
Free from harsh chemicals.
Can wash hair immediately

Hair Relaxing

Breaks disulphide bonds
Damages hair
Contains harsh chemicals
Avoid hair washing 48-72 hours

Keratin Treatment

Laminates the hair
Heavy on the hair
Can contain harsh chemicals
Avoid hair washing 48-72 hours

The restorative effect

Delving into effects invisible to the naked eye, the electron microscope images below display individual hairs. On the left, noticeably damaged (bleached) hair contrasts with hair treated using ingredients from our product (shown to the right). 

Nourishment and repair

In this image, we see the before and after following a treatment with the carob seed extract used in our products. These biomimetic, plant-derived molecules uniquely repair hair both internally and externally, resulting in stronger hair and sealed cuticles.

Fantastic smoothing

In this image, we see the before and after pictures following treatment with the ceramide analogue used in our products. As shown, it does an amazing job at sealing hair cuticles, even on very damaged hair. This reduces further damage and moisture loss. 

What makes us different?

Made in the EU
100% Vegan
Manufactured under GMP
Fantastic Support
Dermatologically Tested
High Quality Ingredients

Real people, real results

The images below show before and after pictures following treatment with the Amino-15 Straightening System. The after pictures are taken just after washing & blow drying, and therefore show what the client can expect when washing and blow drying their hair at home.
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Rejuvenum & Nature

At Rejuvenum, all of our products are vegan and free from formaldehyde, parabens, cysteine and microplastics. In addition, with every purchase of our 1L Hair Straightening System, we plant a tree - offsetting more than 150 kg of carbon dioxide.

Rejuvenum & Nature

At Rejuvenum, all of our products are vegan and free from formaldehyde, parabens, cysteine and microplastics. In addition, with every purchase of our 1L Hair Straightening System, we plant a tree - offsetting more than 150 kg of carbon dioxide.

Super-powered aftercare

Designed to work with the Amino-15 Hair Straightening System

Amino-15: Shampoo

Plant derived ingredients cleanse and restore the hair while moisturising the scalp.  
View

Amino-15: Conditioner

A mixture of plant oils and extracts condition, hydrate and rebuild your hair.
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Frequently Asked Questions

Aqua, Glyoxylic Acid, Glycolic Acid, Cetearyl Alcohol, Coco-Caprylate, Parfum, Ceteareth-20, Glycine, Serine, Aspartic Acid, Alanine, Valine, Isoleucine, Proline, Threonine, Sodium PCA, Sodium Lactate, Arginine, PCA, Histidine, Phenylalanine, Lysine, Methionine, Glutamic Acid, Tyrosine, Tocopheryl Acetate, Cetrimonium Chloride, Prunus Amygdalus Dulcis Oil, Glycerin, Hippophae Rhamnoides Fruit Extract, Rosmarinus Officinalis Leaf Extract, Helianthus Annuus Seed Oil, Tocopherol, Glycol Distearate, Hydrolyzed Ceratonia Siliqua Seed Extract, Zea Mays Starch, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Tetrasodium Glutamate Diacetate, Potassium Sorbate, Sodium Benzoate, PEG-8, PEG-8/SMDI Copolymer, Palmitoyl Myristyl Serinate, Sodium Polyacrylate, Phenoxyethanol, Biotin, Tetramethyl Acetyloctahydronaphthalenes, Linalyl Acetate, Vanillin
Keratin treatments simply laminate the hair. Our product penetrates the hair and works on the inside. Chemical relaxers break disulphide bonds - our product does not break any bonds - in fact it adds new bonds which lock the hair in a straight position. 
Yes. It does not damage the hair and does not contain any harmful chemicals like formaldehyde, ammonia or carbocysteine. Our product has been dermatologically tested.
In general, yes. There is nothing harmful in our products. However, preganacy is a sensitive time, therefore, before the treatment show the ingredients list to your doctor and ask if you can have the treatment. You can go ahead if they agree. 
Yes! We tested our products even on 4C afro hair. Our product effectively straightens all hair types. 
No. It will not damage your hair. It will make it look healthier and stronger. The only potential damage can come from setting the temperature of the hair straightening iron or doing too many passes but the product itself will not damage your hair.
Yes. The product works on any hair type. The only thing to be mindful of is warming of the hair. This is not from the product but from the heat of the straightener. Simply reduce your temperature and increase your passes. You can apply toner after 5 days!
Yes and even longer. Your customer will come in for root touch up before the product washes out. The longest we have seen it last is even 12 months. 

Changelog

Version 2 - Our improved formula. Mostly the same formula you love but with tweaks and additions.  Better ingredient absorption into the hair. Improved product consistency, easier to apply. Should provide better straightening. 

Version 1 - Our first version delivering great results without harsh chemicals with effects lasting 6+ months.  

See our customer reviews

15 reviews for Amino-15: Hair Straightening System

    Amino-15: Hair Straightening System photo review
    Diane Breslin
    February 18, 2025
    I have been using Rejuvenum Amino 15 in my salon, the hair studio for six months now. The feedback has been nothing short of amazing, it's great for all hair types & results last 6+ months. My customers have expressed that they have had a reduction in split ends & brittleness of their hair. It has worked especially well For those with unruly & damaged hair. Free from harsh chemicals!
    Amino-15: Hair Straightening System photo review
    Liga Sirma
    February 17, 2025
    In our salon Jens Hair Care we love to work with this products it’s very good!
    Amino-15: Hair Straightening System photo review
    Edel Woods
    February 17, 2025
    I love using Amino 15 Hair straightening system in my hair studio! It’s a lovely consistency and fragrance when applying it to the hair and the shine afterwards is unreal! It makes the styling afterwards effortless every single time!
    Jean Counihan
    February 11, 2025
    Amino-15 is the best straightening system out there. The results are just sensational. I myself have been using it for almost a year now and I could not imagine my hair without it. It's makes doing my hair 100% easier. My clients all love it and can't believe the results.
    Stewart Clark
    February 3, 2025
    I’ve been hairdressing for 20 years, for the past 14 of those I have specialized in damage repair treatments. It is excellent to be able to offer a product that provides a better straightening result without chemicals. I am also delighted to be offering a service that delivers what clients have been screaming out for, and is strictly available in certified salons by qualified professionals.
    Amino-15: Hair Straightening System photo review
    Andrijana Ursic
    June 22, 2024
    One of the best training I attended,leared so much,amazing tim of educators,driven to teach you with all details,tips and trick to deliver mind blowing results. Rejuvenum product is best product i ever use,so easy to work with and condition of hair shine and results are unreall. So greatful that you came with this product,its trully the best thing that coud hapen to any hair,for me and my clients there is no bad hair days anymore Thank you💐
    Amino-15: Hair Straightening System photo review
    Keith Hennel
    April 12, 2024
    We have been using REJUVENUM in our salon for over a month now and have had exceptional results every time on different clients with all hair types! It’s not damaged the hair and has actually improved the condition of their hair so much. We’re so thrilled that we’ve had the privilege to introduce this treatment into our salon!
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