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Rating: 3.9Based on 155 reviews
  • Most helpful positive

    Becca

    The user's roll: Lyko Creator. The post was made 1 week
    Rating: 5 out of 5

    Wow

    I have been using the treatment for about two weeks and so far I really like it. It is easy to apply and feels light in the hair, which I really appreciate because my hair can easily feel heavy from the wrong products. The only small downside I've noticed is that I wish the spray gave a finer mist; right now it feels a bit direct and "hard" in the spray. But the product itself works well and doesn't weigh the hair down at all. Love that it doesn't need to be rinsed out. Together with the rest of the series, I find that my hair feels light, airy, and my ends look much nicer after blow-drying than with other products I've tried before. This is the kind of product I find hard to tell if it has made a difference, but I have no negative comments about it. The products in the series are also very economical, which makes them feel worth the price in the long run. The scent is a bit more on the masculine side, which I think gives a fresh feeling. I am participating as a test pilot via Smartson and have received a free test product.
    127 views
  • Most helpful negative

    Malin

    The post was made 2 weeks
    Rating: 2 out of 5

    Hair feels more damaged than full

    I have tested Redken Acidic Grow Full System Instant Densifying Spray for Thin Hair for almost a month, and I’m not quite sure what I think about the product. It smells nice, and I spray it in my hair (when it’s towel-dry). It’s easy to brush the product through the hair, but once dry, the hair becomes very stiff and feels almost more damaged than “voluminous.” However, I haven’t tested enough to maybe find the right amount, etc., to both achieve volume/full hair – while also making it look rich and thick. The price feels a bit high for the product. The review was conducted on behalf of Smartson – the tester received the product for free.
    210 views

  • Emelie

    The post was made 1 hour
    Rating: 4 out of 5

    Great results, but wished for more shine

    The serum makes the hair soft, smooth, and less frizzy immediately. It feels more hydrated and gets a nice shine without becoming greasy or heavy. The hair also becomes more manageable and easy to style. The review was conducted on behalf of Smartson – the tester received the product for free.
    5 views

  • Sarah

    The post was made 5 days
    Rating: 3 out of 5

    Completely okay

    I have tested Redken Acidic Grow Full System Treatment I liked the product but felt that it made the hair stiff like when using hair mousse. I had to massage and brush it out to get rid of that feeling. Otherwise, I liked it. Got volume and it was an okay product. The review was conducted on behalf of Smartson – the tester received the product for free.
    30 views

  • Josefine

    The post was made 5 days
    Rating: 5 out of 5

    Gives fantastic texture

    I have tested the entire Redken Acidic Grow Full series and am genuinely impressed – especially considering I have thin, fine hair and a scalp that can be both dry and quickly become oily. This one is a real game changer for thin hair. Right when I use it, my hair feels fuller and gains more texture – without becoming sticky or stiff. Perfect if you want a bit more “grip” in your hair when styling. It actually gives a noticeable volume boost and is very lightweight at the same time! I will definitely continue to use this! The review was conducted on behalf of Smartson – the tester got to try the product for free.
    23 views

  • Malin

    The post was made 6 days
    Rating: 3 out of 5

    Volume, but lack of moisture

    This leave-in spray promises fullness, volume, and lift from the roots, which was exactly what I was looking for. I have thin strands but a lot of hair, and although I didn’t notice any direct moisture, I actually felt that my hair got a bit more volume and became easier to style. However, it didn’t quite live up to my expectations when it comes to nourishing effect – I missed the feeling of moisture and nourishment. The scent was also quite strong in my opinion. A plus is that it doesn’t weigh hair down or make it greasy, but the effect feels somewhat limited. I had to add a moisturizing leave-in afterwards. The review was conducted on behalf of Smartson – the tester got to try the product for free.
    24 views

  • julie.elizabethjudge

    The post was made 6 days
    Rating: 5 out of 5

    Fantastic Spray

    Lovely product line with a delicious scent. It helps keep my hair healthy and gives shine without greasiness. It’s easier to brush the hair and it stiffens it a little so it feels like it has more structure. The review was done on behalf of Smartson – the tester tried the product for free.
    13 views

  • Marina

    The user's roll: Lyko Creator. The post was made 6 days
    Rating: 5 out of 5

    Acidic Grow Full system treatment

    Acidic Grow Full System Treatment This treatment has truly been a favorite in my routine. I use it a few times a week and notice a clear difference in hair quality. It feels rich and nourishing without being heavy, and the hair becomes noticeably softer immediately after use. I find that the hair feels stronger and more hydrated, especially in the lengths. The product also gives a nice shine and reduces frizz. It’s easy to use and delivers a salon-like result at home. Perfect for anyone who wants to give their hair a little extra love. The review was conducted on behalf of Smartson – the tester received the product for free.
    18 views

  • Maoii

    The post was made 6 days
    Rating: 3 out of 5

    Not for me

    My hair: Scandinavian, thin, fine, and brittle in the lengths. Tends to get oily at the scalp but dry in the lengths. I find that the product on one hand gives volume, but on the other hand, I don’t like the feeling in my hair that comes with it. I feel that the hair becomes a bit matte and rough and doesn’t look as lively and healthy as I’m used to. I find that the product does what it is described to do, but since I personally don’t like the feeling it gives my hair, it doesn’t impress me. I would not choose this particular spray for volume based on my preferences. The packaging and spray function itself are good and easy to use. The review was conducted on behalf of Smartson – the tester got to try the product for free.
    7 views

  • Ida

    The post was made 6 days
    Rating: 4 out of 5

    Works on thin hair

    Have been using the products for 2 weeks now and am very satisfied! The hair feels full and kind of like you have a lot of product in it but without feeling heavy, and it also doesn’t get greasy or dirty the same way as before! The only thing I noticed was that before the hair is dry, it really gets stiff from the aftercare products… then it really feels like you have product in your hair but after blow-drying, styling, and carefully combing out, the hair feels light and full! Think the bottle was a bit hard to use but you get used to it! Got to test the products in collaboration with Smartson.
    13 views

  • Cecilia

    The post was made 6 days
    Rating: 3 out of 5

    Difficult to apply

    I tested the product via Smartson. I think it was very difficult to apply because the spray function wasn’t that good; it came out more as splatters than a spray. I felt it didn’t distribute as easily as expected. Unfortunately, hard to judge the result.
    5 views

  • Lovisa

    The post was made 6 days
    Rating: 4 out of 5

    Volumizing

    Gives more volume and texture to the hair when I use this.
    6 views

RedkenAcidic Grow Full SystemInstant Densifying Spray for Thin Hair 190 ml

34,04 €*
Rec. price 40,20 €
(17,92 € / 100 ml)
Free shipping for purchases over 70 €, sent from our warehouse in Sweden
* Cannot be combined with discount codes.

From the brand that masters advanced pH science, Acidic Grow Full System Instant Densifying Spray for fuller and thicker hair, enriched with azelaic acid.

A lightweight leave-in treatment spray that immediately provides body, volume, and root lift to the hair.
Suitable for all hair types, providing the hair with added volume.

Immediately after using:
• +17% instant volume*.
• Product easily absorbs into hair.
• Hair has body/volume.
• Hair looks full, smooth, soft, and healthy.
• Hair feels smooth & soft.
• Hair is manageable and easy to style.
• Hair is not greasy, nor weighed down.

*Instrumental test with shampoo and spray


How to Use:

Spray 15 cm away from hair, on clean, damp hair. Comb through from mid-sections to ends.

190 ml

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