RE/START Hair Bond Repair: The Science Transforming Hair Care

September 8, 2025

TABLE OF CONTENTS

  1. The Structure of Healthy Hair
  2. What Happens When Bonds Break
  3. Caring for the Scalp
  4. Real Results: Professional vs. At-Home Use

Struggling with damaged hair and ready to discover a new generation of treatments that restore hair from within? Then read on, as we step into the future of a total hair transformation with RE/START™ Bond Repair by Revlon Professional®. Our complete professional range of vegan formulas, multiuse products and advanced performance will transform your hair at its core 

You might ask, why is this important? Healthy-looking hair isn’t just about the products you use, it’s about the science behind them. The strength, texture, and resilience of your strands all depend on the powerful bonds within the hair’s structure. When these bonds stay intact, hair remains strong and flexible. But when they break, signs of damage become hard to ignore.

 model with long wavy blond hair

The Structure of Healthy Hair

Hair is more than just what you see on the surface. Each strand is made up of three layers, and within the cortex, disulfide bonds play a crucial role. These strong chemical links between keratin molecules determine the hair’s shape and strength. Whether your hair is naturally curly, wavy, or straight, it’s these bonds that define its structure.

Our advanced Lipid Bond Filler Technology penetrates deep into the essential layers of the hair, working across four levels to target the core of hair damage. The secret lies in its unique blend of four powerful technologies that repair hair from the inside out:

  1. Keratech Bond Repair Technology: Re-links broken bonds between keratin chains for 12 times stronger* hair.
  2. Hair Moisture Filler Technology: Replenishes and repairs the cortex for 6 times more hydrated hair*
  3. Lipid Layer Replenisher Technology: Nourishes the lipid layer for up to 72h of frizz control*
  4. Acidic Technology: Seals the cuticle to reveal hair that’s 10X smoother*

*Using  RE/START™ Bond Repair Pre-wash + Leave-in Hair Treatment as a last step of the range. Bleached hair (untreated) vs. Bleached hair (treated).

The Science Lipid Bond Filler

What Happens When Bonds Break

Unfortunately, hair bonds aren’t invincible. Several factors can weaken them, leading to noticeable damage:

 

  • Heat styling without protection: High temperatures break down protein structures, making hair brittle and prone to breakage.
  • Bleaching and coloring: Harsh chemicals disrupt disulfide bonds, stripping hair of strength and moisture.
  • Daily wear and tear: Environmental exposure, friction, and excessive washing gradually degrade bonds.

When bonds are compromised, hair shows clear signs of distress: dryness, split ends, loss of elasticity, and breakage. The good news? RE/START™ Bond Repair’s next-generation treatments redefine hair repair by working at the molecular level to restore hair from within. Unlike traditional conditioners that only smooth the surface temporarily, these innovations rebuild broken bonds, bringing back smoothness, shine, and strength.

Caring for your hair isn’t just a beauty routine, it’s smart science. Protecting those bonds means stronger, healthier-looking hair that can withstand everyday styling and environmental stress.

Woman with long wavy dirty blond hair

Caring for the Scalp

Caring for the scalp is a vital element to achieve beautiful hair. RE/START™ Bond Repair formulas are powered by the exclusive DUAL ACTION Kerabiotic™ System & LipidBond Filler technology that balances the scalp microbiome* and penetrates the hair fiber deep into its key layers, to repair 4 levels of damaged hair from within.

Re/start Bond Repair Full Range

  • Pre-Wash + Leave-In Hair Treatment: This dual-action, damage-reversing treatment repairs hair at the core, delivering four levels of reparation: it re-links bonds between keratin chains, repairs the cortex, nourishes the lipid layer, and seals the hair cuticles. It’s formulated with Bond Multiplying Molecules, amino acids, Omega-9, and AHAs (alpha hydroxy acids). 100% vegan and silicone-free.

 

  • Damage Reversing Gentle Cleanser: This dual-action gentle cleanser helps balance the scalp microbiome and repair weakened hair at the core. It re-links broken bonds and strengthens the hair fiber to prevent breakage, leaving hair stronger, smoother, and shinier. It’s formulated with AHAs, bond multiplying molecules, and skincare ingredients. 100% vegan.

 

  • Damage Reversing Melting Conditioner: This dual-action lightweight conditioner helps balance the scalp microbiome* and repair weakened hair at the core. It instantly conditions and rebuilds broken bonds for stronger, smoother, and shinier hair. It’s formulated with bond multiplying molecules and AHAs, and 100% vegan.

 

  • Damage Reversing Intensive Mask: This intensive dual-action filler mask helps balance the scalp microbiome* and repair weakened hair at the core. It deeply penetrates the hair fiber to fill damaged areas of the cortex and rebuild inner strength throughout the hair structure. Formulated with Omega-9, AHAs, and bond multiplying molecules and 100% vegan and silicone-free.

 

  • Anti-Split Ends Shine Repairing Drops: This dual-action repairing serum-to-oil helps balance the scalp microbiome* and seal visibly split ends. It provides heat protection up to 220ºC, prevents and reduces split ends, and neutralizes the dull appearance of damaged hair for a glass hair look. Formulated with Omega-9 and replenishing oils and 100% vegan.

 

*When using RE/START Shampoo

woman with long wavy blond hair

Real Results: Professional vs. At-Home Use

For ultimate results, why stop at home care? Book an appointment with your professional stylist to get the best outcome. We recommend pairing RE/START™ Bond Repair products with the RE/START™ Pro Care System, a salon-exclusive professional range designed to restore the quality and beauty of healthy-looking hair.

Your stylist will create tailor-made, salon-exclusive color-care treatments by mixing two liquid care shots, each targeting different hair needs.

This innovative two-phase system features an Antioxidant Powder Primer that combines with ultra-performing Liquid Care Shots to create a smooth, creamy emulsion that melts for controlled application and even hair saturation.

Powered by skincare-inspired lamellar technology, the RE/START™ Pro Care System formulas act like a GPS: they precisely locate hair areas needing deep treatment and deliver highly concentrated ingredients directly to them. These ingredients form a network of organized layers called lamellars, which stabilize and enhance the product’s performance.

Restart Bond Repair hair products that can be customized

Need more tips and tricks to help to transform your damaged hair? Book in for a consultation or find your local Revlon Pro salon by using our handy hair salon finder tool.

If you are a hair professional, you can continue learning new techniques by accessing our 24/7 educational platform, #AlwaysOn. You can also stock up on your favorite products by heading to our online store, Revlon ProShop. In addition, check out our Revlon Pro Color World Mobile App for professional color tools.

 

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