Fine, flat hair has a talent for going limp the moment you leave the salon — all shine, no substance. This Redken Acidic Grow Full System Densifying Conditioner is the mid-shower rescue that gives thin strands the body they've been quietly angling for.

TL;DR: A lightweight, pH-balanced densifying conditioner built for thin, flat and fine hair. A 7% Densifying Complex with azelaic acid, caffeine and prebiotics hydrates the scalp, detangles in seconds and leaves hair fuller, softer and thicker-looking after just one use — vegan, cruelty-free, and the ideal step two in the Redken Acidic Grow Full System.

Product Details and Benefits

• Featherweight, not flat-weight: A lightweight, pH-balanced formula that hydrates thin and fine hair without the heavy, coated feeling that drags delicate strands down.
• The 7% Densifying Complex: Powered by azelaic acid, caffeine and prebiotics to condition each strand and help rebalance the scalp with moisture.
• Instant slip: Softens and detangles on contact, leaving hair full, soft and revitalised from the very first wash.
• Stronger against breakage: Helps fortify hair that's prone to snapping from everyday brushing. Worth being clear — it strengthens the hair you already have; it won't sprout brand-new strands.
• Kind all round: A vegan formula that's never tested on animals, finished with a warm citrus fragrance of salty citrus and neroli.
• Team player: Designed as step two of the Redken Acidic Grow Full System, alongside the matching shampoo, scalp & hair serum and instant densifying spray. Used as the complete system, it helps deliver the look of fullness equal to +5,000 hair fibres.*

How to Use

• Shampoo first with the Acidic Grow Full System Densifying Shampoo, then gently squeeze out the excess water.
• Work the conditioner through from mid-lengths to ends, distributing evenly.
• Rinse thoroughly, then style as usual.

Pro tip: Emulsify a coin-sized amount between wet palms with a splash of water before it ever touches your hair. Fine, flat strands drink up an even, diluted veil far better than a concentrated dollop — you get all the slip and softness with none of the weigh-down.

Why You'll Love It

If your fine hair has spent years faking fullness, this is the conditioner that finally makes good on the promise — hydrated, bouncy and visibly denser without a hint of heaviness. Add it to your cart and give thin, flat hair the plot twist it's been waiting for.

*The look of fullness equal to +5,000 hair fibres is based on use of the complete Acidic Grow Full System (shampoo, conditioner, scalp & hair serum and instant densifying spray), not the conditioner used on its own. Source: redken.com.