Redken Acidic Bonding Concentrate Leave-In for Damaged Color-Treated Hair, 1 fl oz — Rebuilds Bonds & Reduces Breakage

Redken Acidic Bonding Concentrate Leave-In is a lightweight, citric-acid–powered leave-in treatment that rebuilds weakened bonds, reduces breakage, and helps preserve color in dry, damaged hair.

Designed as the third step in Redken’s Acidic Bonding Concentrate protocol, this 1 fl oz leave-in cream targets strands already weakened by chemical services, heat styling, sun and environmental stress. Its acidic formula works with a bonding care complex to smooth the hair surface, reinforce internal strength, and provide heat protection — all in a compact, salon-grade leave-in that layers easily under styling products.

How does this leave-in rebuild damaged hair strands?

The formula blends citric acid with Redken’s bonding care complex to interact with the hair fiber and support weakened connections within the strand. It doesn’t replace professional services but complements in-salon repair by reducing the look of split ends and improving tensile strength over repeated use.

• Citric acid helps refine the hair surface and enhance product adhesion.
• Bonding complex targets areas of weakened structure for visible smoothing.
• Consistent application reduces breakage and split-end appearance.

Will this protect color-treated hair and resist fading?

Yes — the acidic pH and conditioning agents are formulated to help maintain salon color between appointments. The leave-in forms a lightweight protective layer that minimizes color-stripping environmental effects and the mechanical wear from styling tools.

• Acidic formulation helps keep cuticles sealed for less color leaching.
• Safe for use on color-treated and chemically processed hair.
• Applied before heat styling to add an extra barrier against thermal fading.

How should I use it and how much is needed?

A little product goes a long way — the creamy, yet light texture is designed to coat strands without weighing them down. Start with a small amount and increase slightly for thicker or longer hair; apply to damp hair and style as usual for best results.

• Begin with a dime-sized amount; adjust by hair length and density.
• Work through mid-lengths to ends; avoid roots for cleaner volume.
• Use regularly as the step 3 leave-in in the Acidic Bonding Concentrate routine.

Does it offer heat protection and styling flexibility?

The product adds a protective element when using heated tools, helping reduce mechanical damage while maintaining styling versatility. It won’t replace dedicated heat protectants for extreme temperatures, but it contributes meaningful protection and smoother styling results.

• Provides thermal defense during everyday blow-drying and styling.
• Leaves hair manageable for combing and subsequent styling steps.
• Produces a smoother finish that reflects healthier-looking strands.

Who is this for: Ideal for anyone with dry, processed, or visibly weakened hair seeking a compact, professional-strength leave-in repair step. It suits color-treated and chemically altered hair, those who style with heat regularly, and people looking to minimize split ends and breakage without heavy oils or weighed-down formulas.

Ingredients

AQUA / WATER / EAU DIMETHICONE CETEARYL ALCOHOL AMODIMETHICONE PHENOXYETHANOL POLYQUATERNIUM-37 DIMETHICONOL PARFUM / FRAGRANCE PROPYLENE GLYCOL DICAPRYLATE/DICAPRATE TRIDECETH-5 STEARETH-20 CETYL HYDROXYETHYLCELLULOSE GLYCERIN CITRIC ACID LIMONENE PPG-1 TRIDECETH-6 TRIDECETH-10 SODIUM HYDROXIDE CHLORHEXIDINE DIGLUCONATE SORBITAN OLEATE ACETIC ACID LINALOOL CITRONELLOL CITRAL EUGENOL