Redken Acidic Grow Full Instant Densifying Spray – For Thicker-Looking Hair

Price: $40.00
(as of Sep 25, 2026 19:27:52 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

Discover The Acidic Grow Full System Family

Add to Cart

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Customer Reviews

4.4 out of 5 stars 408

4.5 out of 5 stars 325

3.9 out of 5 stars 152

4.3 out of 5 stars 141

Price

$37.00$37.00

$37.00$37.00

$48.00$48.00

$40.00$40.00

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

What does the Instant Densifying Spray do?

It instantly plumps the hair fiber to create the appearance of thicker, fuller hair with added volume while providing heat protection.

How do I use this spray?

Spray evenly onto damp hair, focusing on mid lengths to tips, then combing fro root to tip distribution. Blow dry for maximum volume.

Will it leave my hair feeling stiff?

No, it provides lightweight body and fullness without any crunchy or stiff residue.

Who is this spray for?

It is perfect for anyone with fine or thinning hair looking for an instant boost of density and heat protection.

Can I use it with other styling products?

Yes, it can be layered with other styling products for enhanced volume and control.

Product Dimensions ‏ : ‎ 1.79 x 2.36 x 8.39 inches; 0.01 ounces
Item model number ‏ : ‎ 0884486542458
UPC ‏ : ‎ 884486542458
Manufacturer ‏ : ‎ Redken
ASIN ‏ : ‎ B0GD2BZH1B
Best Sellers Rank: #16,762 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #62 in Hair Thermal Protection Sprays #346 in Hair Sprays
Customer Reviews: 4.3 4.3 out of 5 stars (141) 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); } }); });
Densifying Spray: Lightweight leave-in treatment spray with 5% Densifying Complex for instant fullness and root lift.
Powered by Azelaic Acid: Azelaic acid and Densifying Complex immediately provide fullness and lift to hair.
GLP-1 Tested Proof: 91% of GLP-1 users agreed hair feels thicker when using the full system, per consumer test.
For Thin & Flat Hair: Lightweight spray lotion perfect for styling with heat tools up to 450°F.
Acidic Grow Full System: Use with Shampoo, Conditioner, and Scalp & Hair Serum for best results.