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Rating: 3.9Based on 139 reviews
  • Most helpful positive

    Jessika

    2 months
    Rating: 5 out of 5

    Wow

    It’s rare that I fall for a product right at the first use. I actually didn’t have such high expectations for this, but WOW! ➕ The bottle has a handy pump function that makes it easy to dose the product. ➕ The scent is fresh, a bit tangy but not strong at all. I think this works well even for scent-sensitive people. ➕ The serum provides good moisture without weighing down or making the hair greasy. ➕ The hair becomes shiny and free from frizz. Additionally, it brings life to my tired straight hair (which gets curly when it feels good and is treated gently) so that it’s not pin straight. #lykoreview

    Translated from swedish

    2538 views

    • ElliR

      2 months
      Such beautiful hair 🥰

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  • Most helpful negative

    Virre

    2 months
    Rating: 2 out of 5

    No home run

    I have tested the Redken Acidic Bonding Concentrate 24 / 7 Night & Day Serum for just over a week. My hair is medium thick, bleached with blonde highlights, a bit dry, and gets frizzy easily. I like the practical pump bottle that the product has, it's easy to get the right amount out. I take about 1-2 pumps per use and scrunch it into the lengths. I am sensitive to scents and easily get migraines from strong fragrances, but the serum has a mild and pleasant scent that just feels fresh, without being overpowering. I really appreciate that! I have tested the product mainly on dry hair but also a few times on wet hair after washing. The serum has replaced my hair oil that I usually take a pump of in the evening before bed, and I can feel a difference. Unfortunately, not for the better. The product is supposed to provide up to 3 times more moisture, add shine, and reduce frizz according to Redken, but I notice none of that. My hair is rather drier than usual and the shine I used to have has disappeared. I also find my hair to be more frizzy than usual. The only thing I have changed in my hair routine is the serum, so unfortunately, it is the culprit in this drama. The serum costs 559 kr and it is expensive, especially with the lack of effect that I experienced. It is not a product I can imagine buying again, as it did not suit my hair at all. But now it will be passed on to a friend who has a completely different type of hair, hopefully, it will suit her much better.

    Translated from swedish

    1950 views

    • Sotnosen

      2 months
      Great review and super honest picture 🥰 too bad the product itself wasn't better, but good for us others to know 🤗

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  • Tilly

    1 week
    Rating: 5 out of 5
    verified customer

    New favorite

    A new favorite!! Easy to use both on damp and dry hair. Love everything in this series💕

    Translated from swedish

    58 views
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  • Emma

    1 month

    Citric acid and dark colored hair?

    I got a little curious about this series since I've read a lot of good things about it. So I've been using this product (also shampoo, conditioner, hair mask, and a leave-in cream) for a few weeks. I may have experienced that my hair feels a bit better and softer, so that's good. But suddenly the color in my hair is fading much faster. It colors dark brown that leans towards reddish-violet. And suddenly the lengths and ends turn orange in no time. I wonder if it could be the acid in these products that pulls the color out more? Okay that it's summer and the sun is doing its part. But I've had the same hair color for several years now, and I haven't experienced the color fading this much in previous summers.

    Translated from swedish

    152 views

    • Sofia

      Hairdresser at Lyko
      1 month
      Hey Emma! 👋🏼 The Redken Acidic Bonding line is actually designed to protect colored hair, not to pull the color out. It works with a low pH value to close the hair strand's cuticle and thereby better encapsulate the color, not the other way around 🤗 However, sun, heat, and frequent washing can be real color thieves, especially when the hair is already colored in red-purple tones that tend to fade more easily. If you've washed your hair more often, been in the sun more, or maybe used heat tools more frequently lately, that could be the reason 😅 If you want to keep the color depth longer, it can help to complement with a color-preserving UV protection or a color mask that refreshes the shade between colorings 🌸 This UV protection is my favorite ☀️ lyko.com/sv/suntique/suntique-i-m-hair-sun-treatment-100ml Take care 🦋

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  • Yasemin

    3 months

    Can it be used before blow-drying?

    Hi. Is it heat protection/can it be used before styling with heat tools/blow-dryer?

    Translated from swedish

    1006 views

    • Josefine

      Customer service at Lyko
      3 months
      Hey hey Yasemin🌸 This serum does not contain heat protection, so I recommend you complement it with this spray on top of the serum to protect your hair from the heat of your styling tools 🥰👇 lyko.com/sv/redken/redken-styling-one-united-150ml-1 Good luck and take care of yourself!

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  • T

    4 months
    Rating: 3 out of 5

    Good serum

    I have used Redken Serum for a week and am quite satisfied with the results. First of all, it has a wonderful scent that really makes the application a lovely experience. The serum gives a nice shine to the hair and makes it soft and shiny without weighing it down. However, I haven't noticed any significant difference compared to other serums I've tried before. It feels like a good alternative, but not really something that stands out significantly from other products in the same category. It's definitely good for those looking for a wonderfully scented serum with shine, but maybe not the most revolutionary on the market. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from swedish

    1344 views
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  • Ginke

    4 months
    Rating: 3 out of 5

    Moisturizing serum

    I have used the product for 2 weeks. During this time, I have not noticed any long-lasting effect. When using the product, the hair becomes softer and shinier. But if you don't apply it, the effect disappears. I liked the scent and consistency. The product does not weigh down the hair and does not make it greasy. The evaluation was conducted on behalf of Smartson – the tester received the product for free.

    Translated from norwegian

    2181 views
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  • Magdalena

    4 months
    Rating: 5 out of 5

    Great for dry hair!

    The packaging is really pretty and gives a luxurious feel. I've struggled with dry and frizzy hair and have now been using this serum for over two weeks – both day and night on the lengths. The result? My hair feels significantly softer, shinier, and less dry! I can really recommend this serum, especially if you have dry hair that needs moisture. The price is a bit steep, but since the product is very concentrated, it lasts a long time and you get what you pay for. The review was conducted on behalf of Smartson – the test pilot was allowed to try the product for free.

    Translated from swedish

    938 views
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  • Maria Rafiq

    4 months
    Rating: 5 out of 5

    Works flawlessly!

    My daughter and I both had mega dry and scratchy hair after we moved, as the water here is mega hard on the hair. We have used the product for 15 days, it worked on my hair after 7 days where I could see a change, my daughter's hair took a bit longer before you could see a difference! The hair is not scratchy anymore. It is wonderfully soft and shiny. I am totally hooked on this product But all in all, mega good product. Works as it should, extra plus it smells sooooo good! The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from danish

    837 views
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  • Susanna

    4 months
    Rating: 5 out of 5

    Redken - super great product

    I think this product was absolutely amazing. I've been testing it for about 2 weeks. It completely locks in frizz. Good consistency, easy to work into the hair. I always blow-dry my hair after applying the product to wet hair. The hair becomes easier to manage and smooth. It also feels thicker. I usually spray a bit of saltwater too. The price is totally okay when you think about how economical the product is and what results it gives. The review was conducted on behalf of Smartson - the test pilot was allowed to try the product for free.

    Translated from swedish

    1187 views
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  • Caroline

    4 months
    Rating: 4 out of 5

    Caroline

    I have been testing this for 3-4 weeks now. I usually have very dry - normal hair. I also dye my hair very often. I noticed right away that it made my hair much less frizzy. You get incredibly soft and shiny hair from it. This is the first hair product I have tested that doesn't make my color bombs leak. I love the scent of it, there’s nothing bad to say about it. Could be a little cheaper but otherwise completely perfect!

    Translated from swedish

    519 views
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  • Sonia

    4 months
    Rating: 4 out of 5

    Moisturizing and good scent!

    I have tried this product for 2 weeks, and I notice that my hair ends have become much stronger! Smells good, and I who have curls absolutely think it made a difference! But I think I need to use it for a longer time to see a bigger effect :)

    Translated from norwegian

    424 views

    • Sonia

      4 months
      The evaluation was conducted on behalf of Smartson – the tester was allowed to try the product for free.

    to leave a comment

RedkenAcidic Bonding Concentrate24/7 Night & Day Serum 100 ml

546 kr
Free delivery option available, can be sent immediately

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

Often bought together

695 kr
1.716 kr

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