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Highlights
Summary
Redken Acidic Grow Full Instant Densifying Spray is a lightweight leave-in treatment spray formulated with 5% Densifying Complex that delivers instant fullness and root lift while protecting hair from heat styling up to 450°F.
Benefits
- Instantly fuller, thicker looking hair*
- Tested with GLP-1 users
- 2x less breakage** & stronger hair***
- Clinically tested to hydrate the scalp****
- 91% of GLP-1 users agreed hair feels thicker*****
- Lightweight and non-greasy
- Instant volumizing effect
- Instant root-lifting
- Safe to use on color-treated hair
- *When using system of shampoo, conditioner, serum, and spray
- **System of shampoo, conditioner, serum, and spray vs. non-conditioning shampoo
- ***Tested to reduce breakage. System of shampoo, conditioner, serum, and spray vs. non-conditioning shampoo
- ****When using system of shampoo, conditioner, and serum.
- ***** In a consumer test when using system of shampoo, conditioner, serum, and spray; tested with GLP-1 users experiencing hair loss.
Key Ingredients
- Infused with Azelaic Acid and 5% Densifying Complex to immediately provide fulless and lift to hair.
Key Notes
- Italian Lemon
- Neroli
- Cedarwood
Item 2653070
Spray six inches from clean, damp hair along mid-lengths to ends. Work product throughhair with a comb. Do not rinse. Style as desired. Can be applied daily.
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
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
Hair looked fuller after first use
[I received this product in exchange for my honest review] I've been using the full system for a little over 6 weeks now. Im currently 9 months post partum with my 3rd (you can see the baby hairs in some photos) so thinning has been a major concern for me.t the whole line/system has a very pleasant ...
Most Helpful Critical Review
Volume and Texture
[I received this product in exchange for my honest review] I have used Redken products in the past and had a favorable experience, so I was very excited to try this. At first I wasn't a fan of this product because it left my hair feeling very stiff and crunchy. I realized it needs to be combed thr...
253 results
Fine Mist
[I received this product in exchange for my honest review] I was skeptical about how this spray would feel on the scalp but it was actually so fine that I could not even tell I had applied it. There is a subtle scent but nothing overpowering, it is almost spa like. Packaging is sturdy and of high quality.
I like this glow system desiring spray. Like how it's works
Hair Type Straight Hair
I like this glow system desiring spray. Like how it's works with my hair. After using
Sprayer broken when I received it.
I ordered this online and when I received it, part of the sprayer was broken off so I can't use it. I guess I'll take it into the store and see if I can return it.
Thick Product
This is an okay product. I wouldn't personally buy it. I feel like it weighs down my hair and makes it greasy at the top. I have very fine thin hair. It has no scent and it's kind of a thick product. I'm not sure if it grows your hair.

Love This!
Hair Type Straight Hair
Love this spray. Makes my hair look fuller and smells great! Definitely recommend! Thanks, Ulta Beauty!