Penetrates deep into your hair structure to rebuild broken bonds damaged by chemicals, heat and the environment. Hair becomes healthier, stronger and more manageable. 

300ml bottle. 

Restores Damaged Hair

3X Strengthening Of Untreated Hair

Creates New Hydrogen & Ionic Bonds

Improves Manageability

Restore Damaged Hair From The Inside Out

How does your hair become damaged?

95% of our hair is made up of protein bond structures. These hold our hair shafts together, giving it its strength and stability. They keep the hair in the natural shape it was formed.

During heat styling, colouring and day to day life, these bond structures are broken down before being hardened into a new shape. This is referred to as ‘hair damage’.

This leads to spongy, weak hair strands and split ends that eventually break off. The hair is overly dry, rough and tangles easily. It loses its shine and looks dull.

The only effective long-term solution is to restore the internal structure of your hair. 

How does this plex treatment work?

Using two small molecule ingredients (Hydroxypropylgluconamide and Hydroxypropylammonium Gluconate) Merwave’s Repair & Restore Plex Treatment restores and reconnects these damaged and broken bonds from the inside out.

Both molecules are designed to strengthen your hair from inside the fibre by penetrating deep into the cortex to create new hydrogen and ionic bonds. 

This then supports the internal protein structure, providing up to 3X strength compared to untreated hair.

What results can I expect?

As the plex treatment re-builds your hair bonds, it strengthens the hair from within, making it more resistant to breakages and damage.

Damaged hair's more porous than healthy hair. Moisture cannot be retained, causing brittleness and frizz. This plex treatment will repair those damaged cuticles. Your hair will now retain the vital moisture required to stay soft and frizz free. 

By restoring the bonds, your hair elasticity will be improved. Your hair will become more manageable and more resilient to styling. It'll be visibly shinier and healthier. 

How to use

Use whenever your hair feels dull and damaged. Or after you've been on holiday and subjected it to sun, sea and chlorine. 

1. Apply to damp hair

2. Detangle 

3. Leave on for 30-60 minutes. I leave it on for 60-minutes to let it penetrate through and get great results. The product will be actively working as long as your hair remains moist.

4. Rinse off

5. Complete steps 1-5 of Merwave routine as normal

Restoring damaged hair takes time. There's no overnight miracle product. So you may need a few treatments before you see results.


Curly Girl Approved

No Silicones, Sulphates or Parabens

Never Tested On Animals

Aqua (Water), Cetearyl Alcohol, Cetrimonium Chloride, Behentrimonium Chloride, Propylene Glycol, Persea Gratissima (Avocado) Fruit Extract, Hydroxypropylgluconamide, Hydroxypropylammonium Gluconate, Hydrolyzed Jojoba Esters, Hydrolyzed Wheat Protein, Polyquaternium-7, Panthenol, Citric Acid, Glycerin, Phenoxyethanol, Benzyl Alcohol, Sodium Benzoate, Potassium Sorbate, Sorbitan Caprylate, Parfum (Fragrance).

Customer Reviews

Based on 2967 reviews
Jasmine McCarthy
Game changer

I saw the merwave ad come up multiple times but was very skeptical. I feel like I’ve tried it all with my unruly hair with no luck.
After just a couple of tries using the products, it’s been an absolute game changer. It’s SO much easier to sort my hair out (usually a mane of frizz). I’m embracing my natural waves and getting compliments left right and centre.
I honestly cannot believe the difference a couple of products make.
Thank you so much Abi and team- I feel so confident and happy with my natural waves now!

Christine Townsend
Finally I have the hair I always wanted

I wasn't sure the products and application advice would actually work, but thought it was worth a shot. Well it does work and I finally have the kind of wavy hair I always wanted. Thank you!


I’ve just started using the kit and it has really helped restore the curls I didn’t know I had!

Amy Shanley
Love it!

Perfect curls after first wash