The Acidic Bonding Concentrate Leave-In Conditioner, a 2023 Shape Beauty Award winner, is a multi-benefit leave-in treatment designed to repair various types of hair damage, including chemical damage from hair color and lightening, as well as heat styling and environmental factors. This leave-in treatment offers bond repair and conditioning benefits, and is suitable for color-treated hair.

The Acidic Bonding Concentrate system is a professional bonding haircare collection specifically formulated for damaged hair. The sulfate-free shampoo gently cleanses while the conditioner helps condition and hydrate the hair. The Intensive Treatment, Liquid Mask, and Leave-In Treatment are additional products in the collection, each targeting specific hair care needs.

Using the Acidic Bonding Concentrate system can help reduce split ends by up to 88% and provide heat protection up to 450°F with continued use. The leave-in treatment is the ideal third step in the haircare regimen, to be used after washing with the shampoo and conditioner.

Healthy hair has an acidic pH, typically between 4.5 and 5.5. Everyday exposures to elements like water and chlorine can cause damage by raising the hair's pH. The Acidic Bonding Concentrate products have a lower pH to help rebalance the hair's pH levels.

The Acidic Bonding Concentrate system is highly concentrated, so users only need a small amount, such as a dime-sized amount, to see benefits. The products are suitable for color-treated hair and differ from other bonding treatments or in-salon services, which can be more time-consuming.

Redken, the brand behind Acidic Bonding Concentrate, is focused on sustainability and conscious manufacturing. They are reducing the use of virgin plastic in their packaging and shifting to post-consumer plastic, cardboard, and aluminum. Additionally, 3-in-4 Redken haircare products are made in factories using renewable energy.

In 2023, 156 Redken products were certified by Cradle to Cradle, an independent standard that assesses the safety, circularity, and responsibility of materials and products. Redken is also on a mission to ensure that the hairdresser's chair is an LGBTQ+ Safe Space by providing free virtual on-demand education to hairdressers.

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