You can get free samples of Redken Acidic Bonding Concentrate Shampoo and Conditioner by interacting with the brand on social media platforms like Facebook and Instagram, and searching for the product online. There's no direct link for the sample; instead, it appears in sponsored ads on Instagram, Facebook, and sometimes TikTok. 

 There's a new free sample opportunity for Redken Acidic Bonding Concentrate Shampoo and Conditioner showing up as sponsored ads on social media platforms like Instagram, Facebook, and TikTok. While there's no direct link, increasing your interaction with the brand's social media pages might help the ad appear in your feed or stories.