Try this fine hair test: To find out the width, take a single strand of hair and lay it flat on a table. If you can barely see the hair or feel it between your fingertips, then you have fine hair.

For fine hair, use the Acidic Bonding Concentrate Shampoo & Lightweight Liquid Conditioner in the shower and rinse, followed by the Leave-In Treatment after on clean, damp hair. For medium-to-thick hair types, we recommend using the Intensive Treatment, Shampoo, Conditioner and Leave-In Treatment.

This lightweight rinse-out conditioner offers bond repair with volume in one use*. That's up to 48 hours of volume & non-oily hair** and 4x easier detangling**. Get the bonding benefits you want without the weight! * with continued use ** consumer test n=60

Acidic Bonding Concentrate is Redken's hair care collection for damaged hair. This Lightweight Liquid Conditioner is suitable for color-treated hair*. * based on consumer test results, system of acidic bonding concentrate shampoo & lightweight liquid conditioner

This sprayable bonding conditioner is ideal for fine, thin damaged hair. The lightweight formula is silicone-free & offers the same bonding care complex concentration as the traditional conditioner.

This ultra-rich vegan conditioner provides ultimate strength repair, intense conditioning and hair color fade protection. Ideal for those with medium to thick damaged hair.