Redken Acidic Grow Full System Scalp & Hair Serum – Lightweight Leave-In Treatment for Rebalanced, Healthy-Looking Scalp and Fuller, Thicker Hair, With Azelaic Acid

Price: $46.00
(as of Apr 16, 2026 07:05:46 UTC – Details)
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From the manufacturer

Acidic Grow Full System Shampoo & Conditioner

Promotes a healthy feeling scalp, and hair looks full in just one use.

Acidic Grow Full System Scalp & Hair Serum

Rebalances scalp pH, adds moisture, and promotes denser, thicker-looking hair.

Densifying Spray

Acidic Grow Full System Instant Densifying Spray

Instant fullness and root lift while protecting hair from heat styling up to 450°F.

1 Shampoo & Conditioner

2 Scalp & Hair Serum

3

See The Fullness

Acidic Grow Full System transforms thin, flat hair into instantly fuller, thicker looking hair* in just one use.

*When using system of shampoo, conditioner, serum, and spray

Density & Strength System

Acidic Grow Full System rebalances the scalp with moisture while delivering 2x less breakage* & stronger hair.**

*Tested to reduce breakage. System of shampoo, conditioner, serum, and spray vs. non-conditioning shampoo

** When using system of shampoo, conditioner, and serum

Lightweight, Fast-Absorbing Serum

Clinically tested to hydrate the scalp* *When using system of shampoo, conditioner, and serum.

Acidic Grow Full System Formulas

Advanced pH science with Azelaic Acid + Caffeine + Prebiotics.

Acidic Grow Full System Scent

Top notes of Italian Lemon + middle notes of Neroli + base notes of Vanilla Bean.

Acidic Grow Full System Love

Loved by certified Trichologist and Hair Stylist, Shab Caspara @shabhairexpert

1 Scalp & Hair Serum

2 The Science

3 The Fragrance

4 Prescribed by Pros

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Acidic Grow Full System Merchant Video

Discover The Acidic Grow Full System Family

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Customer Reviews

4.2 out of 5 stars 103

4.2 out of 5 stars 89

4.2 out of 5 stars 35

4.3 out of 5 stars 58

Price

$36.00$36.00

$36.00$36.00

$46.00$46.00

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Description

A gentle shampoo

A lightweight conditioner

A serum to balance scalp

A leave-in spray for root lift

Product Benefit

Fuller-looking hair

Nourishing conditioner

Rebalanced scalp

Instant volumizing

Suggested Use

Cleanses thin & flat hair

Detangles and balances scalp

Spray and massage into scalp

Spray and comb through hair

Hair Type

Flat, thin hair, dry scalp

Flat, thin hair, dry scalp

Flat, thin hair, dry scalp

Flat, thin hair, dry scalp

Key Ingredients

Azelaic Acid, Caffeine

Azelaic Acid, Caffeine

Azelaic Acid, Caffeine

Azelaic Acid, Caffeine

WHO IS THE ACIDIC GROW FULL SYSTEM FOR?

The Acidic Grow Full System is suitable for people with thin, flat or fine hair, or those who experience hair fall from breakage due to brushing and are looking for hair that instantly looks healthy and full after just one use.

HOW DOES THE SYSTEM WORK?

Shampoo – Provides density by cleansing

Conditioner – Preserves density by not weighing down the hair

Scalp & Hair Serum – When used with the shampoo and conditioner, provides strength to the hair fiber

Leave-In Spray – Provides density with polymers

WHAT IS THE FRAGRANCE OF ACIDIC GROW FULL SYSTEM?

Warm Citrus Fragrance: Salty citrus with neroli elegrance

Top Notes: Italian Lemon

Middle Notes: Neroli

Botton Notes: Vanilla Bean

IS ACIDIC GROW FULL SYSTEM SUITABLE FOR THOSE EXPERIENCING HAIR CHANGES DUE TO GLP-1?

Yes, in a consumer test when using system of shampoo, conditioner, serum, and spray, 91% of GLP-1 users experiencing hair loss agreed hair feels thicker.

Item model number ‏ : ‎ 3474637325510
Manufacturer ‏ : ‎ Redken
ASIN ‏ : ‎ B0G59MCQT6
Best Sellers Rank: #20,206 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #164 in Hair Treatment Oils
Customer Reviews: 4.2 4.2 out of 5 stars (35) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Tested with GLP-1 Users: 91% of GLP-1 users agreed hair feels thicker**In a consumer test when using system of shampoo, conditioner, serum, and spray; tested with GLP-1 users experiencing hair loss
Lightweight, non-greasy formula suitable for daily use on dry scalp or clean, damp scalp
Instantly fuller, thicker looking hair* *when using system of shampoo, conditioner, serum, and spray
Leave-in serum that instantly rebalances scalp with moisture for a healthy feel while providing instant root lift
For best results, use full Acidic Grow Full System of (1) Shampoo, (2) Conditioner, (3) Scalp & Hair Serum, and (4) Instant Densifying Spray