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The Science Of Scalp Care: The Foundation For Better Hair Growth

Redken Acidic Grow Full System Range Header

We are witnessing a seismic shift in client priorities. While high-impact color and precision cutting remain staples, there is a rapidly growing "skinification" of hair care. Today’s clients are increasingly savvy; they understand that the secret to lush, voluminous hair doesn't just lie in the strands, but in the foundation: the scalp.

With hair loss and thinning now ranked as the #1 fastest-growing hair concern—affecting nearly 29% of consumers—professionals need a solution that bridges the gap between clinical scalp care and high-performance styling. Redken is proud to introduce the NEW Acidic Grow Full Range, a breakthrough innovation designed to rebalance, strengthen, and densify.

PH Science: The Redken DNA

"As pros, we often focus on the hair fiber, but the scalp's acid mantle is the 'soil' from which the hair grows. When the pH is off, the scalp barrier is compromised. By bringing Redken’s signature acidic pH science to the scalp, we aren't just cleaning hair; we are optimizing the entire biological environment for better growth. It’s the ultimate foundation for every service." — Jimmy, Redken Education Manager

Redken has always been a pioneer in pH science, as the hair and scalp thrive in an acidic environment (typically between pH 4.5 and 5.5). When this "acid mantle" is disrupted, the scalp becomes vulnerable to bacteria and dehydration, leading to a compromised environment for hair growth.

The Acidic Grow Full range leverages this heritage, utilizing advanced pH-balanced formulas to lock in hydration and protect the scalp’s natural defenses. By maintaining this optimal environment, the hair roots are protected and hydrated, leading to healthy hair growth.

Acidic Grow Full System: A Complete 4-Step Regimen

Redken Acidic Grow Full System Range

This launch introduces a comprehensive range consisting of four new high-performance products: Shampoo, Conditioner, Serum, and Spray. This system is powered by an advanced 5% strength complex featuring Azelaic Acid to rebalance the scalp’s acidic pH, alongside Caffeine and Prebiotics to energize and nourish the scalp’s microbiome. While the shampoo and conditioner provide the essential foundation for strength, the range introduces two new "Pro Heroes" that offer both long-term benefits and instant gratification.

New Acidic Grow Full Scalp & Hair Serum

This is the "Scalp Hero" your clients have been waiting for. It features a lightweight, non-greasy, and fast-absorbing formula that is perfect for daily use. The Result: 73% of consumers report their scalp feels healthy after just one use. When used as a full system, hair is up to 2x stronger with significantly reduced breakage.

New Acidic Grow Full Instant Densifying Spray

Every pro knows that clients with thinning hair want immediate results. This spray is a game-changer for finishing, providing instant root-lifting and visible volume. It allows you to transform flat, thin hair into a fuller-looking mane before the client even leaves your chair.

"Thinning hair is a sensitive topic for clients. Having a system like Acidic Grow Full in your toolkit changes the conversation from 'covering up' a problem to 'treating' the source. Being able to offer a 2x strength increase through a simple 4-step regimen builds incredible trust and long-term loyalty with your clients." — Jimmy, Redken Education Manager.

Pro Technique: The Volume & Vitality Layering Guide

A before and after picture of using this range.

"The secret to the Acidic Grow Full Serum is in the 'Pro-Stimulation' massage. I always tell stylists to use the pads of their fingers in a slow, rhythmic movement after application. This doesn't just feel luxurious for the client—it helps the 5% Strength Complex with Caffeine penetrate effectively to 'awaken' the scalp before you even pick up your blow-dryer." — Jimmy, Redken Education Manager.

To maximise the efficacy of the 5% strength complex and achieve the most voluminous finish, follow this professional layering protocol during your service:

  1. Prep the Foundation: After cleansing with the Acidic Grow Full Shampoo and Conditioner, towel-dry the hair thoroughly.
  2. Target the Scalp (The Serum): Section the hair and apply the Acidic Grow Full Serum directly to the scalp. Use a gentle, circular massage technique to stimulate micro-circulation and ensure the Caffeine and Prebiotics are evenly distributed. Its non-greasy finish ensures no weight is added to the roots.
  3. Build the Architecture (The Spray): While the hair is still damp, mist the Instant Densifying Spray from roots to mid-lengths. This provides the "grip" and lift needed for the blow-dry.
  4. The Pro Blow-Dry: Using a round brush, lift the hair at a 90-degree angle from the scalp while drying. The heat helps set the densifying polymers in the spray, resulting in hair that looks instantly thicker and fuller.

Integrating this system into your backbar and retail shelf allows you to address the most pressing concerns of your clientele with clinical precision. By offering a regimen that includes the shampoo, conditioner, serum, and spray, you provide your clients with hair that is up to 2x stronger and a scalp that feels balanced and moisturised.