This shampoo is specially developed for coloured hair that wants to maintain shine and colour intensitySi. Whether you have highlights, balayage or an even colour, this product suits what damaged hair needs after a colour treatment.

• Sulphate-free formula without SLS or SLES, developed for coloured hair
• Acidic pH (5.0–5.6), in line with the natural pH of hair and scalp
• According to Redken, colour stays vibrant up to 32 washes (brand claim)
• Hair often feels smoother and looks less frizzy after use
• Refill pack reduces plastic waste
• Identical formula to the original bottle
• Tocopherol (vitamin E) and amino acids added to support hair condition

This shampoo is suitable for anyone with coloured hair who wants shine and colour retention. If your hair is normal to slightly dry, you'll notice the best results.

1. Thoroughly wet your hair with lukewarm water.
2. Distribute a generous amount of shampoo through your hair and scalp.
3. Gently massage with circular motions.
4. Rinse well with cool water for extra shine.
5. Follow with a matching conditioner for best results.

Want to care deeper for your colour-treated hair? Combine this shampoo with the Acidic Bonding Concentrate 5-min Liquid Hair Mask for a noticeable boost in strength and softness.

After a colour treatment, your hair's pH can temporarily be higher and the hair cuticles more open. This can cause colour fade and dullness. Redken developed the formula of this sulphate-free shampoo for coloured hair with an acidic pH (5.0–5.6), a range that matches the natural pH of hair and scalp. In hair science, a slightly acidic environment is often linked to a smoother cuticle layer and more shine, though the exact effect varies and depends on your hair's overall condition.

Arginine and other amino acids in the formula are known conditioning ingredients that can help the hair surface feel softer. Your hair often feels smoother and looks more even afterwards. According to Redken, coloured hair retains its colour intensitySi for up to 32 washes; this is a brand claim based on internal Redken testing and not independent scientific research.

Yes, this shampoo contains no classic sulphates like SLS or SLES. Redken explicitly calls the product sulphate-free, and that matches the ingredients list. However, the formula does include Sodium C14-16 Olefin Sulfonate, an anionic cleanser that is relatively powerful. Combined with milder agents like Cocamidopropyl Betaine, this provides most users with effective yet gentle cleansing. If you have a very sensitive or dry scalp, such a strong cleansing ingredient might feel drying, so monitor how your skin reacts. For many with coloured hair, the formula is mild enough for daily or frequent use.

That depends on how your hair reacts to conditioning ingredients. For fine, normally coloured hair, this shampoo usually works well: hair feels smoother and looks shinier without becoming heavy. The formula contains Amodimethicone and other nourishing polymers. These ingredients form a thin, smooth layer on the hair to enhance shine and manageability. Some users with extremely fine or fast-greasing hair may find this heavier over time, especially if using the matching conditioner. In that case, apply conditioner only on the ends and rinse thoroughly. The shampoo itself doesn't usually cause problems for most with fine coloured hair.

Acidic Color Gloss focuses on shine and colour retention for coloured hair in good condition. Acidic Bonding Concentrate is for hair damaged by bleaching, heat or frequent colour treatments. That line targets hair structure repair. Have healthy coloured hair and want shiny colour care as maintenance? Then Acidic Color Gloss is your choice. If your hair is porous, brittle or over-processed, consider the Acidic Bonding Concentrate Shampoo as an alternative.

What sets Acidic Color Gloss apart from many other colour-protecting shampoos is the combination of an acidic pH and a shine focus. While some colour shampoos mainly protect pigment, this formula also smooths the hair's surface, visually enhancing shine. Compared to Kérastase Chroma Absolu, Acidic Color Gloss is often experienced as softer and smoother by users. Against cheaper drugstore options, the difference lies in the pH profile and the blend of nourishing polymers. If you have balayage or a permanent colour and want daily shampoo use that keeps hair silky soft and vibrant, this is a strong choice in its category.

Do you have questions about the Redken Acidic Color Gloss Shampoo Refill - 500ml or want to see if this product suits your hair? Email info@haarspullen.nl or call us during business hours. We're happy to help you make the right choice. Also sign up for our newsletter for tips, news and offers first.

Orders from €35 ship for free. Order the refill with a conditioner or mask for weeks of supply. That way you get the most out of your colour treatment, wash after wash.

Aqua / Water / Eau • Sodium C14‑16 Olefin Sulfonate • Glycerin • Cocamidopropyl Betaine • Glycol DisTearate • Peg‑150 DisTearate • Sodium Lauroyl SarcoSinate • Propylene Glycol • Cocamide Mipa • Hexylene Glycol • Parfum / Fragrance • Citric Acid • Sodium Hydroxide • Sodium Chloride • Sodium Benzoate • Peg‑55 Propylene Glycol Oleate • Coco‑Betaine • Hydroxypropyl Guar Hydroxypropyltrimonium Chloride • Peg/Ppg‑4/12 Dimethicone • Salicylic Acid • Carbomer • Amodimethicone • Limonene • Benzoic Acid • Polyquaternium‑7 • Tocopherol • Linalool • Benzyl Salicylate • Benzyl Alcohol • Alpha‑Isomethyl Ionone • Trideceth‑6 • Glycine Soja Oil / Soybean Oil • Arginine • Serine • Glutamic Acid • Cetrimonium Chloride • Pentaerythrityl Tetra‑Di‑T‑Butyl Hydroxyhydrocinnamate (F.I.L. N70028036/1)

We recommend always checking the ingredient list on the packaging for the most accurate details before use. Due to product updates and optimisation, ingredients listed here may differ from the packaging.

Manufacturer Contact: RedKen
277, rue Saint Honore
75008 Paris
France
consumercareNL@loreal.com