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Rating: 4.2Based on 147 reviews
  • Most helpful positive

    Becca

    The user's roll: Lyko Creator. The post was made 3 days
    Rating: 5 out of 5

    Lovely

    The serum is truly a nice complement to the rest of the series. It’s easy to spray into the hair and feels very light in texture, which is a big plus since I don’t like when hair feels heavy or greasy. Has a nice mist This works to spray on dry hair daily, which I like, without weighing it down. I have tested the product for about two weeks, so it’s a bit early to say if it actually affects hair growth or strengthens hair long-term, but my hair already feels lighter, softer, more voluminous, and healthier. The serum is economical and has the same slightly more masculine scent as the rest of the series, which gives a fresh feeling without being too thin The review was conducted on behalf of Smartson – the test pilot got to try the product for free.
    158 views

  • Emma

    The post was made 20 hours
    Rating: 3 out of 5

    Not for me

    - This product is very easy to spray onto the scalp as the bottle is well designed for that purpose, which I appreciate! - Unfortunately, I don't notice any difference in volume or fullness. - Smells like citrus, which doesn't suit me. Reminds me a bit of cleaning products. - Does not make the hair greasy. The review was conducted on behalf of Smartson – the test pilot got to try the product for free.
    10 views

  • Maria

    The post was made 1 day
    Rating: 5 out of 5

    Lovely Serum

    The serum has a lovely scent and neither weighs down the hair nor makes it greasy. Additionally, I have clearly noticed a difference in my scalp, which can otherwise be dry during the cold months, as it feels more hydrated. Furthermore, the product is easy to work with and has a nice fresh scent, The review was conducted on behalf of Smartson – the tester tried the product for free.
    18 views

  • Sofie

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

    Good serum that doesn't weigh down

    Good serum that doesn't weigh down the hair even when used on dry hair. Easy to apply and then massage into the scalp. Have tested for 2 weeks and feel that it gives a sense of fullness. Best effect on towel-dried hair and then blow-dry/style afterwards. Smells a bit citrusy and “manly” but you get used to it quickly. The review was conducted on behalf of Smartson – the tester got to try the product for free.
    56 views

  • Josefin

    The post was made 1 day
    Rating: 3 out of 5

    Simple scalp serum but no fullness noticed

    I have been testing this serum for almost 3 weeks. I have fine Nordic hair and have not noticed the hair feeling fuller yet. But maybe it requires longer use. The product is super easy to spray on the scalp and massage out. Does not irritate the scalp. I think the product is unnecessarily expensive and unfortunately will not buy it again. The review was made on behalf of Smartson – the tester tried the product for free.
    13 views

  • Christina

    The post was made 1 day
    Rating: 3 out of 5

    Want to give the product a chance over a longer period

    I have tested the serum in the series for just over two weeks together with the other products in the series, but have not yet noticed any clear effect regarding increased volume. Just like with the leave-in spray, I feel that the hair gets a certain heaviness and feels more “producty” than natural. The application is relatively simple, but I still find it a bit difficult to get the product evenly distributed in the hair. It is possible that the serum needs more time to show results, but so far I am not completely convinced even though I will continue to use the serum to see any possible results going forward. Overall an okay product, but nothing that really impresses, so my rating is 3/5. The review was carried out on behalf of Smartson – the tester tried the product for free.
    10 views

  • Irene

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

    Good product for thin hair

    I have tested the serum for two weeks along with other products in the series. I have thin hair and was quite curious to try this particular series. It is easy to apply to the hair and has a light consistency that does not weigh the hair down. Something I especially appreciate with my thin hair. The review was conducted on behalf of Smartson – the tester got to try the product for free.
    8 views

  • Anonym

    The post was made 2 days
    Rating: 1 out of 5

    Irritates airways and lungs

    In collaboration with Smartson, I have for 2 weeks and at no cost been able to try the Redken Acidic Grow Full System series with shampoo, conditioner, serum, and spray. After the first wash, my hair felt very rough and hard. It got somewhat better after the second wash but was still rougher than usual. I feel that my hair became flatter and less voluminous than before I started the test. An unpleasant thing I have never experienced before was that when rinsing out the hair, vapors were created in the shower that I inhaled, and it irritated my airways and lungs. It felt corrosive, and I had coughing fits with every shampoo. It doesn't seem very healthy. The products together cost about 1800 SEK. I would recommend spending that money on something else.
    42 views

  • Hilde

    The post was made 2 days
    Rating: 3 out of 5

    Unsure/must be tested further

    This serum is very thin and ran quickly down my forehead, so I found that I have to work it into the hair with each concentrated spray. I massage it into the roots/scalp. I'm a bit unsure if it does anything for me yet, as I've tested it over such a short period since I don't wash my hair that often. I would have liked to test it even longer before reviewing. It smells good, and I was afraid the hair would look greasy since it’s sprayed on the scalp, but I don’t think it does. I'm still trying to figure out how much product to use each time to achieve results. It definitely doesn’t itch, so I will continue to test it along with the rest of the series. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    39 views

  • Benten

    The post was made 2 days
    Rating: 4 out of 5

    Scalp itches less

    I liked this. I haven't used it for very long, but I have a dry scalp, which this was good for. I have used the entire series for about two weeks. The review was conducted on behalf of Smartson – the tester received the product free of charge
    6 views

  • Anam Naeem

    The post was made 2 days
    Rating: 3 out of 5

    Decent product

    Good scent, hair doesn't get sticky. But the only downside is that the hair gets greasy quite quickly and it looks like you've just come out of the shower and look "wet". So it doesn't suit me. Steep price on it in the market. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    36 views

RedkenAcidic Grow Full SystemScalp & Hair Serum for Thin or Flat Hair 100 ml

470 kr*
Rec. price 570 kr
Free delivery option available, can be sent immediately
* Cannot be combined with discount codes.

From the brand that champions Advanced pH Science, new to Redken haircare Acidic Grow Full System Scalp & Hair Serum, with Azelaic Acid.

A lightweight leave-in spray serum that absorbs effortlessly, instantly leaving the scalp feeling hydrated, nourished, and healthy with a revitalized appearance. Suitable for all hair types, it provides the hair with added volume

Immediately after using:
• Scalp looks & feels healthy, hydrated, nourished.
• Hair is manageable and easy to style.
• Hair looks & feels smooth, soft, healthy, nourished/conditioned.
• Hair is not greasy, nor weighed down.
• 2x stronger hair*.

*Consumer use study with 68 individuals using shampoo + conditioner + serum vs. non-conditioning shampoo


How to Use:

Apply away from the scalp on clean, damp hair. Massage into scalp. Can be applied daily on dry scalp.

100 ml
  • Category:Serum

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