Redken Acidic Bonding Curls Sulfate-Free Shampoo for Curly Hair (3A–4C) — Silicone-Free Hydrating Repair

Redken Acidic Bonding Curls Sulfate-Free Shampoo gently cleanses and rebuilds damaged curls while enhancing definition and moisture without silicones.

This lightweight, silicone-free shampoo is formulated for curly and coily hair (ideal for 3A–4C patterns) that needs repair, hydration, and frizz control. Powered by Redken’s Curl-Bond Technology — a blend of citric acid, glycine and urea — it helps fortify strands from the inside, while nourishing oils like avocado and shea provide slip and softness. Use it as the first step in the Acidic Bonding Curls regimen with the matching conditioner and leave-in for best results.

How does this shampoo repair and strengthen damaged curls?

The formula targets weakened areas along the hair shaft by supporting bond rebuilding and reducing the look of damage. Ingredients in the Curl-Bond Technology act on internal structure, improving curl elasticity and resilience over repeated use. This is a cosmetic repair approach designed to improve appearance and manageability, not a medical treatment.

• Citric acid helps rebalance pH to smooth the cuticle and promote curl clumping.
• Glycine and urea support internal bond rebuilding for stronger-feeling strands.
• Silicone-free texture avoids weighing down curl pattern, preserving bounce and volume.

Will it keep my curls hydrated and reduce frizz?

Yes — the shampoo pairs humectants and natural oils to restore moisture while gently removing buildup. Avocado oil, coconut-derived ingredients and shea butter provide slip and nourishment so curls detangle more easily and appear softer. When used with the full Acidic Bonding Curls system, users report improved hydration and noticeable frizz control for multiple days.

• Avocado and coconut-sourced oils deliver lasting moisture and shine.
• Shea butter adds conditioning to smooth and soften the curl surface.
• Sulfate-free cleansing maintains hydration balance instead of stripping natural oils.

Is this safe for color-treated or processed hair?

The shampoo is gentle and formulated without sulfates and silicones, making it suitable for color-treated and chemically processed curls. Its vegan formula focuses on rebuilding and protecting curl integrity while preserving color vibrancy. Always follow with the matching conditioner and leave-in for optimal protection and manageability.

• Sulfate-free cleansing helps protect color and prevents premature fading.
• Vegan formula compatible with many hair services and color treatments.
• Designed for curl patterns 3A–4C, including chemically influenced textures.

How quickly will I notice changes in my curl pattern?

Many users see immediate cosmetic benefits after the first use: improved definition, easier detangling, and a reduction in the appearance of damage. Repeated use as part of the Acidic Bonding Curls system enhances long-term resilience, smoother strands, and extended moisture retention. Results vary by hair history and how consistently the regimen is used.

• Immediate benefits: cleaner, more defined curls and smoother detangling.
• Short-term improvements: reduced visible split ends and increased manageability.
• Best outcomes when paired with conditioner and leave-in from the same line.

Who is this for: Redken Acidic Bonding Curls Sulfate-Free Shampoo is aimed at people with curly to coily hair (3A–4C) who want to restore curl definition, reduce frizz, and improve elasticity after damage or chemical processing. It works well for those seeking a silicone-free, hydrating routine that supports curl pattern and color-treated hair. Ideal for anyone prioritizing lighter-feel cleansing that still delivers moisture and bond-supporting technology.

Ingredients

1218391RK44 - INGREDIENTS: AQUA / WATER / EAU • SODIUM COCOYL ISETHIONATE • DECYL GLUCOSIDE • COCAMIDOPROPYL BETAINE • SORBITOL • CITRIC ACID • HYDROXYETHYL UREA • POTASSIUM HYDROXIDE • POTASSIUM COCOYL GLYCINATE • PPG-5-CETETH-20 • PANTHENOL • SODIUM BENZOATE • HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE • SODIUM CHLORIDE • PEG-55 PROPYLENE GLYCOL OLEATE • PROPYLENE GLYCOL • PARFUM / FRAGRANCE • CAPRYLYL GLYCOL • ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER • PEG-150 DISTEARATE • POLYQUATERNIUM-10 • POTASSIUM COCOATE • COCO-CAPRYLATE/CAPRATE • SALICYLIC ACID • GLYCOL DISTEARATE • BUTYROSPERMUM PARKII BUTTER / SHEA BUTTER • PERSEA GRATISSIMA OIL / AVOCADO OIL • LIMONENE • GLYCINE • COCO-BETAINE • LINALOOL • TOCOPHEROL • HELIANTHUS ANNUUS SEED OIL / SUNFLOWER SEED OIL • ROSMARINUS OFFICINALIS LEAF EXTRACT / ROSEMARY LEAF EXTRACT (F.I.L. T70038194/2).