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4.0
Based on 105 reviews
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  • Most helpful positive

    Sara

    5 days

    Moisturizing serum!

    I've had problems with dry and frizzy hair and have been testing this serum for almost two weeks. I've used it both at night as a "mask" and during the day on the lengths. My hair feels much softer, shines more, and is less dry!! I really recommend it, especially if you have dry hair in need of moisture! The only downside I would say is the price - BUT the product is economical, so keep that in mind. I use one pump for all my hair, which is very long and thick. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free

    Translated from swedish

    6 likes
    926 views
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  • Most helpful negative

    Silje

    1 week

    Do not recommend.

    I have been testing this product for a while now, and I am unfortunately not impressed. Especially due to one factor, read below «➖». I have used it on wet hair, and on dry hair. Both day and night. ➕ Smells good ➕ Good consistency ➕ Not sticky ➕ Easy to distribute in the hair ➕ A small amount goes a long way ➖ Notice little to no difference in the hair. If anything, the ends and lengths feel drier than before. ➖ Does not reduce frizz ➖ WARNING‼️🔆 On the back of the bottle and the box the serum comes in, there is a clear warning that is not mentioned in the description of the serum. You must avoid sun exposure due to a high risk of sunburn, up to ONE WEEK (!!) after application. I found this to be nothing less than frightening. Enough for me not to want to use this product further. It is also strange that this is not mentioned when the product is presented. I have not experienced such a warning on previous hair products. And for someone who has a sensitive scalp regarding sunburn from the past, this product is not something I dare to use further. Fine enough now in winter when there is almost no sun, but still… ➖ The product is pricey for such a small bottle that promises a lot, without results. I am glad I did not pay anything for this serum. The review was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    3 likes
    314 views

    • Silje

      1 week
      It's going well, yes 😊 I was going to test the product and give an honest feedback ☺️👌🏼 Same to you, Anna 🔆

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  • K

    46 minutes

    Redken Acidic Bonding Concentrate 24/7 Night & Day Serum

    I have tried this product for 2 weeks now, I have used it both on dry hair and on damp hair, and I prefer to use it on dry hair overnight. I find that my hair becomes less frizzy, softer, and shinier, plus this serum smells really good. The texture is light and doesn’t make the hair greasy. I will be careful using it in the summer / when being out in the sun due to the acid in the product. The review was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    17 views
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  • Maria

    1 hour

    Recommends

    I typically have thin Nordic hair and now in winter it gets frizzy and static. I have used the serum overnight as I took a bit larger amount and during the day as I took a bit less. The product smells very good and is easy to distribute. I feel that my hair strands feel a bit thicker and have gotten more shine than before. Satisfied! See before and after picture The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from swedish

    14 views
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  • Mathilde skov

    1 hour

    Wiiid awesome

    Wildly awesome product that really makes my hair soft and shiny. I don't have the thickest hair in the world, but I find that the product doesn't weigh my hair down in any way. I've used it both after I've showered and regularly in the evening before I go to bed. It's a huge recommendation if you want to add moisture to your dry hair without the product making your hair hang down along your face. The review was conducted on behalf of Smartson - the test pilot tried the product for free.

    Translated from danish

    10 views
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  • Rose Victoria

    1 hour

    Noticing a difference

    The product is light, smells fresh, and delivers results. It's easy to use, and the visible result makes you remember to use it. The evaluation was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    10 views
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  • blonderad

    2 hours

    Louise

    I was a little skeptical about this product before I tried it, but I was pleasantly surprised. One thing that I find annoying this time of year is that my hair is so static, but the serum helped my hair "lay better". And the other day my husband said, "oh, how soft your hair is". I was a bit unsure at first since it says to "use generously" with the serum on the hair, what is generously? I understand that it varies depending on the thickness and length of the hair, but I would appreciate a little hint about the amount. I realized now when I read the reviews that I have used more than most. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from swedish

    23 views
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  • Solveig

    2 hours

    Good product

    I have been so lucky to try this for a few weeks. I have always had dry and frizzy hair, especially in the winter. I have used the product on damp hair after showering, and I use two pumps for all my hair, which is long and medium thick. The serum has a good consistency and does not feel heavy or greasy/sticky in the hair. It helps a lot with the frizz in my hair and has minimized the use of straighteners :) The review was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    6 views
    to leave a comment

  • Mette

    3 hours

    Lovely product

    Makes my very damaged hair shinier and more manageable. Less frizz when you wake up in the morning and it helps prevent it from getting static throughout the day. And even without ruining the styling of the hair. Super lovely that it’s not sticky and greasy either! The review was conducted on behalf of Smartson - the test pilot tried the product for free.

    Translated from danish

    6 views
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  • gmpedersen

    3 hours

    Improvement, but it doesn't save everything

    It's hard to assess how well it works, as my hair has been very damaged and worn - both from color and a perm. I cut off my annoying ends in the middle of the trial, and after that, I could feel the serum's effect much better. It can't save burnt ends, but it can help prevent - at least for me. The scent is lovely, the texture is easy to apply, but I find it evaporates quickly in my hands. The review was conducted on behalf of Smartson - the test pilot tried the product for free.

    Translated from danish

    22 views
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  • Mathilde

    3 hours

    Smells amazing - seeing results

    If there's one thing that irritates me about hair products, it's that there are so many different rules for how to use them. Before washing, after washing, wet hair, dry hair, rinse out and not. This serum scores high because it can be used just when it suits me, on both wet and dry hair, and doesn't need to be rinsed out. I've been using the product for about two weeks. It's easy to use. I love the smell of it, and it's a plus that it comes in a handy pump bottle. Good amount of product too, but that should be expected; the price is quite steep. I've used the serum both as an overnight hair treatment and applied it to the ends during the day to refresh my hair/smooth frizz. I feel like my hair feels softer after using the serum. Additionally, I see that I've gotten a bit more shine back in it, where it was previously more matte. I have split ends that should have been trimmed long ago, so we'll see if they get magically repaired, but the lengths are definitely softer and shinier than before. Two days ago, I applied a generous amount of serum to slightly damp hair and slept with my hair in a braid (see the picture, sorry I look lifeless, it was taken at 6 in the morning). It still smells really good, and feels less dry and much softer than before. I probably have 10-15 such treatments left in the bottle. The product contains citric acid (hence the name acidic bonding concentrate), and as with acids in skincare, you should be careful about sun exposure afterwards. Totally fine for me! Based on what I've seen in these two weeks, I think I will be able to see more results over a longer period. Because I can't predict results, and because the serum costs a lot of money, I give it four stars. The review was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    145 views
    to leave a comment

  • Izzy

    5 hours

    Pretty okay but expensive

    I've been using Redken's serum for about 2 weeks and in short, it's quite good but unfortunately nothing wow for me🤷🏼‍♀️ The serum is easy to distribute in the hair, doesn't stick, and smells good. The hair feels a bit softer and gets a certain shine. But the effect is not as impressive as one might expect considering the high price💸 I don't feel that my hair has gotten better the more I've used it, but the effect has felt like I've used any silicone-based serum in my hair. There are definitely cheaper alternatives that give similar results. I was lucky enough to try the serum for free through Smartson, but I won't be buying this product in the future, especially due to the price. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from swedish

    58 views
    to leave a comment

RedkenAcidic Bonding Concentrate24/7 Night & Day Serum 100 ml

105 reviews, 4 on average
Member price447,20 kr
Ord. price 559 kr20
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Description
Ingredients

Combat daily damage overnight with the 1st bonding serum for 24/7 repair. Formulated with citric acid that penetrates 7 layers deep* and strengthens the hair, combined with polyglutamic acid + squalane for a high leave-in concentration that creates long-lasting protection and repair. This 24/7 bonding serum:

- Combats daily damage and reduces breakage
- Protects the hair.
- Gives 3x more hydration**
- Gives 9x stronger hair**


*Instrumental test with the use of the system of ABC Shampoo + Conditioner + Serum
**System of ABC shampoo, conditioner, and serum vs. non-conditioning shampoo

Use:
Repairs strength and protects from daily aggressors such as humidity and styling that causes breakage & split ends. For night & day use, on clean damp or dry hair. Do not rinse.

Night use: apply generously mid-lengths to ends, for overnight bond repair & hydration.

Day use: apply as needed for instant frizz reduction, conditioning, & shine.

100 ml

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