Redken
Acidic Grow Full System Instant Densifying Spray

Acidic Grow Full System Instant Densifying Spray is rated 4.0 out of 5 by 86.
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Acidic Grow Full System Instant Densifying Spray
Preview image 1 of Acidic Grow Full System Instant Densifying Spray
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6.8 oz.
#P2869900
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What It Is

Redken Acidic Grow Full System Instant Densifying Spray for thin hair is a lightweight formula that delivers an immediate volumizing effect, visibly improving the look of hair density for thin or flat hair with heat protection up to 450°F.

What It Does

• Break-free: See the fullness of up to +5,000 hair fibers*

• Fuller-looking hair with instant densifying effect

• Heat protection for styling safety

• Ideal for thin or flat hair

• Maintains color-treated hair integrity

 

*reduced breakage from brushing with system of shampoo + conditioner + serum + spray vs non-conditioning shampoo

What Else You Need to Know

The Acidic Grow Full Density & Strength System provides a healthier feeling scalp that is balanced with moisture* and instantly thicker, fuller looking hair that is 2x stronger**

 

*shampoo + conditioner + serum + spray vs unwashed hair

** shampoo + conditioner + serum + spray vs non-conditioning shampoo

Spray six inches away from hair, on clean, damp hair. Comb through from mid-sections to ends.

AQUA / WATER / EAU • ALCOHOL DENAT. • PVP • CAFFEINE • PEG-40 HYDROGENATED CASTOR OIL • PROPYLENE GLYCOL • TRIETHANOLAMINE • PHENOXYETHANOL • ACRYLATES/BEHENETH-25 METHACRYLATE COPOLYMER • PARFUM / FRAGRANCE • CAPRYLYL GLYCOL • AZELAIC ACID • BIFIDA FERMENT LYSATE • SACCHAROMYCES/RICE FERMENT FILTRATE • LINALYL ACETATE • CARVONE • LINALOOL • LIMONENE • CITRUS LIMON PEEL OIL • PENTYLENE GLYCOL • CITRUS AURANTIUM BERGAMIA PEEL OIL • CITRAL • CITRUS AURANTIUM PEEL OIL • PINENE • GERANIOL • TERPINEOL • GERANYL ACETATE • CITRONELLOL • EUCALYPTUS GLOBULUS OIL • MENTHA PIPERITA OIL • SODIUM BENZOATE

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

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Rated 5 out of 5 by from Volume I am impressed with the immediate volume I received after blow drying.
Date published: 2026-04-09
Rated 4 out of 5 by from Good Volumizing spray Thanks to Salon Centric review crew I was able to try out this spray. This is very similar to a volumizing spray with the added benefit of being able to spray it directly on the scalp for volume at the roots. It is very similar to a leave in conditioner but with the added benefit of adding volume to the hair.
Date published: 2026-04-02
Rated 5 out of 5 by from mind blown So I have my fair share products I use to make my hair feel and look fuller as well as long-term products to actually grow my hair thicker and fuller. This is all of that in one. All of that and then some! You have to try this in conjunction with the serum!
Date published: 2026-03-31
Rated 5 out of 5 by from Great product Great product. It really helps with thickening and growing my hair. Doesn’t leave any stiffness on hair
Date published: 2026-03-31
Rated 4 out of 5 by from Great products. I used this product on my daughter who has naturally fine/thin hair. But has also had surgery recently and it made her hair feel so much fuller. I can't wait to see what it feels like over Time. Her only complaint was she felt it made her hair feel greasy the next morning.
Date published: 2026-03-31
Rated 4 out of 5 by from Nice! Great scent! Not sure I can really tell more hair growth. Giving 4 because whole it does feel “thicker” it’s one more step in this line and one more thing to wash out because you can definitely tell if you add too much product. Wish it was more natural.
Date published: 2026-03-29
Rated 5 out of 5 by from Visibly fuller! Been using for about a month now and it definitely does make my hair feel a little fuller! I like the smell and it doesn't weigh my hair down. Intrigued to keep using to see how my hair will progress.
Date published: 2026-03-28
Rated 2 out of 5 by from Not worth it I wanted to like this densifying spray. Giving it 2 stars because I liked the scent. I did not like how my hair felt after applying the product and drying my hair. It just felt dirty and gross like I hadn’t washed in like a week. Was not a fan. Thanks to bzzagent for the product for review.
Date published: 2026-03-27
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