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Redken Acidic Grow Full System Densifying Shampoo for thin, flat hair
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Acidic Grow Full System Densifying Shampoo for Thinning Hair

pH-balanced shampoo for thin, flat hair with Azelaic Acid + 7% Densifying Complex

Redken Acidic Grow Full System Densifying Shampoo is a hair thickening shampoo for thin, flat hair and hair prone to breakage from brushing. Formulated with caffeine and azelaic acid, it gently cleanses while helping the scalp feel balanced with moisture. Use it as part of the complete Acidic Grow Full System for visibly thicker, fuller-looking hair, instant root lift and volume.

DETAILS

Redken Acidic Grow Full System Densifying Shampoo is designed for thinning, flat hair and hair prone to breakage from brushing for a fuller-looking head of hair. This shampoo gently cleanses and revitalises hair, helping it retain lightweight movement and fullness.

Formulated with Azelaic Acid + 7% Densifying Complex and caffeine, its acidic pH formula is scientifically tested to respect the scalp moisture barrier and pH. Caffeine helps awaken the scalp, while azelaic acid helps rebalance its acidic pH to support scalp hydration. When used as part of the complete Acidic Grow Full System, this hair thickening shampoo helps hair look instantly fuller and thicker.

Suitable for

• Thin, flat and fine hair
• Hair prone to breakage from brushing
• Colour-treated hair
• Hair in need of lightweight volume and fullness

Find a salon now to get your hands on the Redken Acidic Grow Full System Densifying Shampoo

Key Benefits For Acidic Grow Full System Regime:

• Instantly fuller, thicker-looking hair
• 79% of consumers saw fuller-looking hair in one use*
• 71% of consumers agree hair feels dense after 1 use**
• 2x less breakage***
• +160% instant volume****
• 73% of consumer agreed their scalp feels healthy after one use*****
• Acidic pH to help scalp feel healthy and balanced with moisture
• Scientifically tested to respect the scalp moisture barrier/pH
• +72% scalp hydration******

*Consumer test, 66 subjects, after 1 use of the AGF shampoo + conditioner + serum + spray
**Consumer test, 65 subjects, 12 hrs after 1 use of the AGF shampoo + conditioner + serum + spray
***Instrumental test after application of the AGF shampoo + conditioner + serum vs classical shampoo
****Instrumental test after application of the AGF shampoo + conditioner + serum + spray vs untreated hair
*****Consumer test, 66 subjects, after 1 use of the AGF shampoo + conditioner + serum + spray
******Instrumental test, 34 subjects, after application of AGF shampoo + conditioner + serum, 4 hrs after application

HOW TO USE

HOW TO USE REDKEN ACIDIC GROW HAIR THICKENING SHAMPOO

For best results, use this densifying shampoo for thin hair as the first part of the complete Acidic Grow Full System.

Step 1: Apply Acidic Grow Full System Densifying Shampoo to wet hair. Lather and rinse thoroughly.

Step 2: After shampooing, apply Acidic Grow Full System Densifying Conditioner from mid-lengths to ends. Rinse.

Step 3: On damp or dry hair, spray Acidic Grow Full Scalp & Hair Serum onto the scalp and roots from approximately 2.5 cm away. Massage into the scalp with your fingers. Do not rinse. Style as usual.

Step 4: On damp hair, apply Acidic Grow Full Instant Densifying Spray from at least 15 cm away. Comb through from mid-lengths to ends. Do not rinse. Style as usual.

USAGE TIPS FOR THIS SHAMPOO FOR THINNING HAIR

• Work the shampoo into wet hair, concentrating the lather at the scalp before rinsing thoroughly.
• Apply the conditioner from mid-lengths to ends to preserve lightweight fullness at the roots.
• Use the complete Acidic Grow Full System when seeking the substantiated density, strength, volume and scalp-hydration results.
• Apply the serum directly to the scalp and roots, then use the spray through the mid-lengths and ends to support fullness throughout the finished style.

KEY INGREDIENTS

Azelaic Acid

Rebalances the scalp’s acidic pH to support a healthy-feeling scalp environment.

Caffeine

Energises and awakens the scalp.

Please be aware that ingredient lists for the products of our brand are updated regularly. Please refer to the ingredient list on your product package for the most up to date list of ingredients to ensure it is suitable to your personal use.

ALL INGREDIENTS

AQUA / WATER / EAU • SODIUM LAURETH SULFATE • COCAMIDOPROPYL BETAINE • SODIUM CHLORIDE • PROPYLENE GLYCOL • PARFUM / FRAGRANCE • CITRIC ACID • COCAMIDE MEA • SODIUM BENZOATE • SODIUM HYDROXIDE • HEXYLENE GLYCOL • BIFIDA FERMENT LYSATE • SACCHAROMYCES/RICE FERMENT FILTRATE • SODIUM LAURYL SULFATE • HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE • CAFFEINE • AZELAIC ACID • LINALYL ACETATE • CARVONE • PENTYLENE GLYCOL • LINALOOL • LIMONENE • CITRUS LIMON PEEL OIL • CITRUS AURANTIUM BERGAMIA PEEL OIL • CITRAL • CITRUS AURANTIUM PEEL OIL • PINENE • PHENOXYETHANOL • SALICYLIC ACID

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Learn More About Redken Acidic Grow Full System Densifying Shampoo

IS THE ACIDIC GROW FULL DENSIFYING SHAMPOO SUITABLE FOR THIN OR FLAT HAIR?

Yes, Redken Acidic Grow Full Shampoo is formulated for thin, flat and fine hair, as well as hair prone to breakage from brushing. It gently cleanses without weighing hair down and is also suitable for colour-treated hair. Use it as part of the complete Acidic Grow Full System for instantly fuller, thicker-looking hair and visible volume.

WHAT IS A DENSIFYING SHAMPOO AND WHAT DOES IT DO?

A densifying shampoo gently cleanses while helping hair appear fuller, thicker and more voluminous. Acidic Grow Full System Densifying Shampoo is formulated for thin, flat hair and helps preserve lightweight movement rather than weighing hair down. For maximum density and volume results, use it with the matching conditioner, scalp and hair serum, and instant densifying spray.

CAN THE ACIDIC GROW FULL DENSIFYING SHAMPOO BE USED ON ITS OWN?

Yes, the Redken Acidic Grow Full System Shampoo can be used on its own to gently cleanse thin, flat hair. However, the fuller-looking hair, strength, breakage, volume and scalp-hydration results listed on this page are substantiated using specified combinations of products from the complete Acidic Grow Full System. Follow with the conditioner, serum and spray when seeking the full regimen benefits.

WHAT DOES THE ACIDIC GROW FULL DENSIFYING SHAMPOO SMELL LIKE?

The shampoo has a warm citrus fragrance with notes of sweet lemon, verbena and amber.

IS CAFFEINE SHAMPOO GOOD FOR THINNING HAIR, AND DOES CAFFEINE SHAMPOO HELP HAIR GROW?

A caffeine hair shampoo can help thin, flat hair look fuller when it is formulated to support density and reduce the appearance of breakage. In Acidic Grow Full System Densifying Shampoo, caffeine helps energise and awaken the scalp, while azelaic acid helps rebalance its acidic pH.


This caffeine shampoo does not grow new hair or address the underlying causes of hair loss. When used as a complete system, Acidic Grow Full helps reduce breakage from brushing and supports the appearance of fuller, thicker-looking hair.

CAN YOU USE THE ACIDIC GROW FULL DENSIFYING SHAMPOO ON COLOUR-TREATED HAIR?

Yes. Acidic Grow Full System Densifying Shampoo is suitable for colour-treated hair. Its acidic pH formula is scientifically tested to respect the scalp moisture barrier and pH while gently cleansing thin, flat hair to keep your colour-treated hair beautiful. For best results, follow with the other products in the Acidic Grow Full System.