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More to Know

  • pH-balanced formula (5.30 - 5.8): Keeps hair’s natural pH in check, reducing frizz and keeping hair soft and healthy.
  • Antioxidant protection: Defends your scalp and hair from everyday stressors.
  • Daily use: Gentle enough for everyday use without weighing hair down.
  • Safe for color-treated hair: Helps keep your color vibrant while repairing damage.
  • Eco-friendly: 100% vegan, sulfate-free, cruelty-free, and packaged in recyclable materials.

Do’s and Dont’s

Do’s:

  • Use daily for maximum repair and protection.
  • Pair with Bio-Molecule Repair™ Treatment for best results.
  • Gently massage into the scalp and roots for a thorough clean.

Don’ts:

  • Use excessively hot water when rinsing, as it can strip hair moisture.
  • Skip conditioner or treatment—hydration is key!
  • Over-shampoo if your hair is very dry or frizzy.

Key Benefits

  • Deep repair: Restores hair’s internal bonds and repairs damage from chemical and heat treatments, while keeping color-treated hair vibrant.
  • Lock in moisture: Maintains optimal hydration for a healthy shine.
  • Strengthen hair daily: Suitable for everyday use to keep hair strong and protected.

As seen in

Four Reasons

Bio-Molecule Repair™ Shampoo

$34.90 | 300 ml

  • Description
  • Ingredients
  • How to use

Say goodbye to damaged hair with Four Reasons Bio-Molecule Repair Shampoo. This daily-use formula features advanced BMR-technology to target and reverse hair damage from within. Ideal for all hair types, including color-treated hair, it restores strength, locks in moisture, and shields against future hair damage. By maintaining your hair’s natural pH, Bio-Molecule Repair Shampoo helps reduce frizz and keeps hair soft and healthy. Perfect for those who frequently use heat or chemical treatments, this shampoo helps achieve healthier, more resilient hair with every wash.

Repairs damage caused by

  • Bleach & color treatments

  • Heat styling tools

  • Chemical treatments

  • Environmental factors like UV rays

 

Key Ingredients:

Helianthus Annuus: A natural ingredient rich in vitamins, antioxidants, and malic acid that helps nourish the scalp, promote hair growth, and add shine to the hair.

Full ingredients

Aqua (Water), Sodium Lauroyl Methyl Isethionate, Sodium C14-16 Olefin Sulfonate, Glycerin, Cocamidopropyl Betaine, Sodium Lauroyl Sarcosinate, Decyl Glucoside, Acrylates Crosspolymer-4, Coffea Arabica (Coffee) Seed Extract, Pyrus Malus (Apple) Juice, Actinidia Chinensis (Kiwi) Fruit Juice, Citrus Aurantium Dulcis (Orange) Juice, Citrus Paradisi (Grapefruit) Juice, Saccharomyces Ferment Lysate Filtrate, Trideceth-9, Prunus Amygdalus Dulcis (Sweet Almond) Seed Extract, Tocopherol, Helianthus Annuus (Sunflower) Seed Oil, Opuntia Ficus-Indica Seed Oil, Malic Acid, Butylene Glycol, Panthenol, Coco-Glucoside, Sodium Lauroyl Lactylate, Glycol Distearate, PEG-120 Methyl Glucose Dioleate, Dicocoylethyl Hydroxyethylmonium Methosulfate, Betaine, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Phenethyl Benzoate, Glyceryl Oleate, Polyglyceryl-4 Caprate, Amodimethicone, Trisodium Ethylenediamine Disuccinate, Sodium Laurate, Polyquaternium-10, Propylene Glycol, Laureth-9, C11-15 Pareth-7, Trideceth-12, Sorbic Acid, Salicylic Acid, Sodium Benzoate, Sodium Chloride, Benzyl Alcohol, Potassium Sorbate, Parfum (Fragrance), Citric Acid, Linalool, Limonene.

See More

Aqua (Water), Sodium Lauroyl Methyl Isethionate, Sodium C14-16 Olefin Sulfonate, Glycerin, Cocamidopropyl Betaine, Sodium Lauroyl Sarcosinate, Decyl Glucoside, Acrylates Crosspolymer-4, Coffea Arabica (Coffee) Seed Extract, Pyrus Malus (Apple) Juice, Actinidia Chinensis (Kiwi) Fruit Juice, Citrus Aurantium Dulcis (Orange) Juice, Citrus Paradisi (Grapefruit) Juice, Saccharomyces Ferment Lysate Filtrate, Trideceth-9, Prunus Amygdalus Dulcis (Sweet Almond) Seed Extract, Tocopherol, Helianthus Annuus (Sunflower) Seed Oil, Opuntia Ficus-Indica Seed Oil, Malic Acid, Butylene Glycol, Panthenol, Coco-Glucoside, Sodium Lauroyl Lactylate, Glycol Distearate, PEG-120 Methyl Glucose Dioleate, Dicocoylethyl Hydroxyethylmonium Methosulfate, Betaine, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Phenethyl Benzoate, Glyceryl Oleate, Polyglyceryl-4 Caprate, Amodimethicone, Trisodium Ethylenediamine Disuccinate, Sodium Laurate, Polyquaternium-10, Propylene Glycol, Laureth-9, C11-15 Pareth-7, Trideceth-12, Sorbic Acid, Salicylic Acid, Sodium Benzoate, Sodium Chloride, Benzyl Alcohol, Potassium Sorbate, Parfum (Fragrance), Citric Acid, Linalool, Limonene.

See Less
  1. Apply: A generous amount to wet hair.
  2. Massage: Gently massage into the scalp and hair.
  3. Lather: Lather thoroughly and rinse with water.
  4. Use with: Bio-Molecule Repair™ Treatment for best results.
PAIRS WELL WITH

Bio-Molecule Repair™ Serum

Bio-Molecule Repair™ Treatment

Cruelty free
& Vegan

Recyclable materials for
packaging

European quality
& reliability

Sustainable manufacturing
practices

FAQs

Frequently Asked Questions

What is Bio-Molecule Repair™ technology?

Bio-Molecule Repair™ technology is an advanced hair care solution that works on three levels to maintain, protect, and repair your hair. It balances moisture with mineral salts and biopolymers, shields your hair from free radicals with antioxidants, and repairs protein structures with amino acids, to help you achieve healthy and strong hair.

How Often Should I Use Bio-Molecule Repair Hair Products?

Bio-Molecule Repair™ Protect Spray is a professional product that should only be used in the salon by a professional hair stylist, with a chemical treatment, or as a stand-alone treatment. You can use Bio-Molecule Repair Shampoo, Treatment and Serum at home as often as you like, without worrying about buildup. For best results, use the Bio-Molecule Repair Serum after every wash to protect your hair and keep it smooth and manageable.

Are Four Reasons Bio-Molecule Repair™ Hair Products Vegan?

Yes, all Four Reasons Bio-Molecule Repair™ hair products are 100% vegan and cruelty-free. We believe in taking care of your hair without harming animals or the environment.

Are Bio-Molecule Repair™ Hair Products Safe for All Hair Types?

Yes, our Bio-Molecule Repair™ products are safe for all hair types. Bio-Molecule Repair hair products are particularly beneficial to bleached, colored, and chemically treated hair, helping to repair and protect it.

How Long Does It Take to See Results from Using Bio-Molecule Repair™ Hair Products?

You’ll notice smoother, more resilient, and shinier hair immediately, after the first use. With regular use, your hair will become stronger and less prone to breakage.

Testimonials

Why You'll love Bio-Molecule Repair™

“Immediately softer, smoother hair!”

“In a class of its own.”

“Instant change.”

“Quick, effortless, reduces tangling.”

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black and white

Feel the difference

At the top of hair technology

The innovation Four Reasons Bio-Molecule Repair™ Protect Spray is a unique tool for all chemical treatments done in the salon. The Bio-Molecule Repair™ line’s shampoo, intensive treatment, and serum complete the treatment both in the salon and at home.

How Bio-Molecule Repair™ compares

See how our groundbreaking technology stacks up against traditional
bond-building and peptide-based products.

Bio-Molecule Repair™
Bond Building
Peptide-Based
Hair Bond Protection
Yes
Yes
Partial
Cuticle Preservation
High
None
None
Breakage Reduction
Yes
Yes
Moderate
Shine Enhancement
High
Moderate
Moderate
Hair Strengthening
High
Moderate to High
Moderate

Feel the difference

Four Reasons Professional Bio-Molecule Repair™

It’s time to protect and repair hair with technology that
considers the hair in its entirety.

Four Reasons Professional Bio-Molecule Repair™ line products
protect, repair, and maintain the function of the cuticle layer and
repair internal damages of the hair so that the difference can be felt
and seen.

Customer Reviews

Based on 11 reviews
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E
Eva Thomas
Absolutely Love This Shampoo!

This shampoo is incredible... I'd give it 10 stars if possible! A little bit is all I need for my thick, wavy hair. I plan to keep using it as long as my hair responds well. Before this, other shampoos made my hair clump up while washing, but this one doesn’t. My hair feels amazing right after use. Truly LOVE this product!

A
Adeline Scott
Makes the Difference

If you could only pick one product for your hair right now, this shampoo should be it. It instantly helps stop hair from rubber-banding and reduces hair fall by strengthening it. Both last a long time since you only need a nickel-sized amount. It’s super concentrated and absolutely worth every penny!

A
Andrea Davidson
Long-Lasting

I’ve been using this product for two years, and it has remained consistently amazing. It lasts a long time, making it a great investment.

K
Kate Turner
Transformed My Post-Chemo Hair!

After losing my long hair to cancer, it finally started growing back, but it was dry and brittle classic 'chemo hair.' Within just two washes with Bio-Molecule Repair Shampoo, my hair felt totally different softer, smoother, and healthier. Now, six months later, its grown so much and feels stronger than ever. Im so grateful for this product!

S
Sophie Hale
A Little Goes a Long Way!

You only need a tiny amount of this shampoo, but it works amazingly! It has helped my hair repair itself and start to regrow after I experienced hair loss due to ill health. It may seem expensive, but it lasts a long time—just a small amount lathers well, and my hair feels great!