Redken Acidic Bonding Curls Sulfate-Free Shampoo — For Curly & Coily Hair (3A–4C), Bond-Building Hydration

This shampoo is formulated for damaged, processed, or dry curl patterns (optimized for 3A–4C). Using Redken’s Curl-Bond Technology—driven by citric acid, glycine, and urea—alongside nourishing oils like avocado and coconut, it aims to rebuild internal hair bonds and boost curl elasticity without silicones or sulfates. When used together with the Acidic Bonding Curls conditioner and leave-in treatment, many users report more defined, resilient curls after one use.

How does this shampoo restore strength to fragile curls?

The formula targets weakened bonds with ingredients that support internal repair and balance hair acidity. Citric acid helps optimize pH while glycine and urea work to reinforce structure, promoting stronger coils from inside out. Over repeated uses, curls typically feel more resilient and show improved pattern definition.

• Curl-Bond Technology with citric acid, glycine, and urea
• pH-aware cleansing to support cuticle alignment
• Works best within the full Acidic Bonding Curls routine

Will this shampoo keep my curls hydrated without weighing them down?

Yes. The silicone-free, sulfate-free base is lightweight and formulated to hydrate using plant-derived oils and humectants, so curls retain volume and bounce instead of feeling heavy. It balances moisture and definition for up to several days when combined with the matching conditioner and leave-in.

• Avocado and coconut oils plus shea butter for nourishment
• Sulfate-free cleansing removes buildup gently
• Leaves curls with body and reduced frizz versus non-conditioning shampoos

Is this safe for color-treated and chemically processed curls?

The formula is designed to be color-friendly and suitable for chemically treated textures, aiming to protect color while repairing curly structure. Because it’s silicone-free and gentle, it minimizes additional buildup that can dull treated hair and helps maintain definition after services.

• Vegan, silicone-free formulation
• Safe for color-treated and processed curls
• Improves manageability and detangling when used as a system

How should I use this product to see the best results?

Use as part of the Acidic Bonding Curls routine: shampoo, follow with the conditioner, and finish with the leave-in treatment. Work the shampoo into scalp and lengths, rinse, then apply conditioner to seal and hydrate. Regular use with the matching products enhances curl pattern restoration and reduces frizz.

• Apply to wet hair, lather at scalp, rinse thoroughly
• Pair with Acidic Bonding Curls Conditioner and Leave-In for full benefits
• Ideal for curl types 3A–4C and for damaged or processed curls

Who is this for: Redken Acidic Bonding Curls Sulfate-Free Shampoo is aimed at people with curly and coily hair—especially 3A to 4C—seeking a lightweight, repairing cleanse that improves curl elasticity and manageability. It’s a good choice for those with color-treated or chemically processed curls who want hydration, reduced frizz, and stronger-looking curl pattern without silicones or harsh sulfates.

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).