Redken Acidic Bonding Concentrate 24/7 Night & Day Serum

I was recently chosen to trial the Redken Acidic Bonding Concentrate 24/7 Night & Day Serum, and overall, I’m pretty pleased with it. After using it for a few weeks, my hair feels incredibly soft and smooth, which is a big win for me since my hair can get dry and frizzy. A little goes a long way, and it absorbs nicely without feeling greasy, which I appreciate for both day and night use. It seems to deliver on its claims of strengthening and protecting hair, and I’ve noticed less breakage during styling. That said, I’m a bit annnoyed at the high dimethicone content. While it definitely contributes to that silky feel, I worry it might weigh my hair down over time or lead to buildup, which could cause issues down the road. I’ve been making sure to clarify my hair regularly to oppose this. Also, while the serum works well, I didn’t spot any standout or innovative ingredients in the formula. It feels like a solid product, but the ingredient list looks similar to what you’d find in most other hair serums on the market—nothing particularly unique or groundbreaking. Would I keep using it? Probably, because the shine is great, but I’ll be mindful of the dimethicone and keep an eye out for something with a fresher ingredient profile.

I've been using Redken Acidic Bonding Concentrate 24/7 Night & Day Serum, and the results are outstanding. It has significantly strengthened my hair, making it feel healthier and more resilient. The reduction in frizz is remarkable, leaving my hair smooth and manageable even in humid conditions. Plus, the boost in shine is noticeable, giving my hair a vibrant, glossy finish. This serum has truly transformed my hair care routine, and I highly recommend it for anyone seeking stronger, shinier, frizz-free hair.

This serum works wonders! I have dry, damaged hair and after only using this serum for a few weeks I have noticed immediate results! It smells great, glides on silkily and makes my hair feel so glossy and smooth! It makes my styles look so healthy and moisturised even 4+ days after washing, with just a little dry shampoo - a game changer. I would highly recommend for anyone who has dry or damaged hair or just wants their styles to look great for more than just a day. I will certainly repurchase!

As someone that has hard to manage hair, I was excited to try the new Redken Acidic Bonding Concentrate 24/7 Night & Day Serum. I have previously used the shampoo and conditioner from the same line, so my hopes were high - and I’m happy to say it lived up to the hype! The serum can be used in the morning or night, and while trialing this both ways, I preferred the night option. When I woke up and went to style my hair, I saw a noticeable difference in how much easier it was to style my locks. My hair felt soft, nourished, less tangled - and added bonus, smelt amazing! Frizz was also minimised which was a huge plus. Anything that helps manage and style my hair quicker in the mornings like this serum gets a 10/10 from me!

I may be biased as redken is a staple in my hair routines. They always create great products that leave my hair feeling strong, shiny and healthy and this serum is nothing short of that. It applies easily to my hair, I always use it after I wash my hair and apply to the ends. It makes my hair so soft and also helps with making my hair less tangled when I brush it after a wash. It doesn’t make my hair feel heavy or full of product either. I’ve definitely noticed my hair feeling softer after use and would highly recommended to anyone suffering from dry or damaged hair.

Literally the best thing I've ever put in my hair!! I’ve been using the Redken Acidic Bonding Concentrate 24/7 Night+Day Serum for a few weeks now and my hair has never felt so soft and healthy. It’s like magic in a bottle — no greasiness, no heaviness, just silky, shiny goodness. Plus, it smells amazing!! I love that it protects my hair from heat and damage too because I’m basically addicted to my straightener lol. Honestly can’t recommend this enough, it’s a total game-changer. If you’re thinking about it, just do it — your hair will thank you <3

I was pleased to trial the Redken Acidic Bonding Concentrate 24/7 Night & Day Serum, as part of the BeautyCrew review crew. I was pleasantly surprised with the product and the appearance of my hair after using the product. The product can be used on damp hair for a pick me up or on dry hair to tame lengths or ends. It smells fabulous and can be left on your hair overnight for bond repair as a mask, or even be used to tame frizzy hair; it's a perfect product for multiple uses and only a small amount of the product is required. With regular use, preferably with the matching shampoo/conditioner, it will make your hair feel stronger, thicker and have less breakage. Great for daily use, suitable for coloured hair and a great product overall. The price is a bit on the high side, but you really do get what you pay for.

One of my biggest concerns with serums is weighing down fine hair, but this product has a featherlight texture that absorbs instantly without any residue. I apply two pumps to damp hair before blow-drying, and it acts as a heat protectant while also reducing frizz. At night, I use it on dry ends as an overnight treatment, and by morning, my hair feels noticeably softer. The scent is another standout—it’s fresh and subtly floral, not overwhelming like some silicone-heavy serums. Over time, I’ve seen a dramatic reduction in breakage, especially at the ends, and my hair looks glossier, even between washes. If you’re dealing with damage, dryness, or just want to boost your hair’s resilience, this serum is a game-changer.

I really enjoyed using the Redken Acidic Bonding concentrate 24/7 Night & Day serum. I primarily used it during the day when styling my hair as I find it tames my frizzy hair without making it greasy. It smells so nice too and doesn’t irritate my scalp like a lot of other products that do. I would definitely recommend using this again although the price is a little high, I would get it on special though!.it is also very light weight and not heavy on my hair. It also isn’t sticky which I enjoy, I found it gives my hair a little volume too with my style hair cut.

I’ve come to the conclusion that my hair is untameable. Since having kids my hair has never been the same. Dry and frizzy when pre kids it was silky and smooth. When I first tried this Redken product I was hopeful. I had instant results and when used both morning and night I found it definitely tamed most flyaways. However I found the product quickly built up and unless you are washing your hair daily, the product build up became quite heavy. I haven’t seen any long term results of using this product however if you’re after a smooth styling serum I would certainly give this one a go. It’s lightweight, a little goes a long way, easy to use, convenient packaging etc. I think in my case with this hair serum - it’s a classic “it’s me not you” situation.

I initially tried the Redken Acidic Bonding Concentrate 24/7 Night and Day Serum after washing my hair of an evening. The serum has a nice scent and was easy to apply although I did feel that the amount of squirts needed for longer hair might make this an expensive product. In the morning, my hair felt softer, looked shinier and healthier. I also tried the serum on dry hair to help reduce frizz. Used daily, I was able to see results in that my hair felt softer yet stronger and definitely less damaged. I believe over continuous use, the results will be even more noticeable.

I trialled this serum over the last couple weeks and have really enjoyed the product! I find that it really hydrates and smoothes my hair out, which helps a lot with frizz! I have curly hair so this is much appreciated. The scent is also really nice - it smells like a professional salon. The bottle itself feels quite solid and expensive and the pump works really well. The product applies well to my hair and doesn’t leave much residue on my hands either. I would definitely recommend this to someone with textured hair.

The Redken Acidic Bonding Concentrate 24/7 Night & Day Serum is a powerful leave-in treatment designed to repair and protect damaged, color-treated, or over-processed hair. Infused with Redken’s bonding care complex and citric acid, it strengthens hair from the inside out, reducing breakage and improving overall resilience. The lightweight formula can be used both day and night without weighing the hair down, while also offering heat protection up to 230°C. It leaves hair feeling softer, shinier, and noticeably healthier over time. Though it’s on the pricier side, it’s a worthwhile investment for anyone looking to restore strength and shine to stressed hair.

I’ve been using the Redken Acidic Bonding Concentrate 24/7 Night & Day Serum for a few weeks now, and it’s quickly become a must-have in my hair care routine. As someone with heat-styled hair that tends to feel dry and brittle, I was looking for something that could actually strengthen and hydrate without weighing my hair down — and this serum seriously delivers. Right off the bat, I love how lightweight the formula is. Whether I apply it to damp hair after washing or smooth it over dry strands for a mid-week refresh, it never feels greasy or heavy. The texture is silky, and it spreads easily through the hair, especially when focusing on the mid-lengths and ends. The ingredients are what make this product stand out. With 7% Bonding Care Complex, citric acid, polyglutamic acid, and squalene, it feels like it’s not just masking damage but actually repairing it. My hair feels noticeably softer, looks shinier, and has way less frizz — even on humid days. I especially appreciate that it works both day and night; I often apply it before bed and wake up to smoother, more manageable hair. Another bonus? The scent is subtle and pleasant, not overpowering like some leave-in treatments. And because you don’t rinse it out, the benefits continue to build over time. It’s great for anyone dealing with damage from coloring, heat tools, or just general wear and tear.

I was super impressed with this product overall. My hair was in desperate need of some help and a good serum to match – suffering from dry, split ends and general damage of my hair. From the moment I applied it, it felt like it was doing its job. I love the fresh citrusy smell, and felt the benefits even n application as my hair soaked it all up. I usually have to wash my hair very regularly as its quite fine and suffers tremendously even after a night’s sleep. Making it frizzy, unruly, and generally not looking spesh! I found that even using this product a few times a week did the trick for my hair, and I was able to wait for extended times in between washing which is a huge bonus for me. I found that this really helped the condition of my hair incredibly, left my hair feeling really good, with a nice deep shine and generally feeling much healthier and stronger. My hair can also often be quite unruly despite blow drying, but this product also helped to maintain a smooth and ultra nourished feel which I loved. This one was a winner for me.

The Redken Acidic Bonding Serum did wonders for my dry damaged hair. I use a lot of product in my hair (hairspray, hairgel) and also straighten my hair everyday and so my hair is quite damaged and brittle. However, after using the serum I saw significant improvements in the overall appearance of my hair - it got rid of a lot of split ends and my hair looks a lot softer and smoother which lasted throughout the day. The optimum use of the serum for me was to use on wet hair which settled in really well once my hair dried up. Didn’t need to use a lot of the product so I can see the bottle lasting a long time which is also a big plus!

I was provided this product for free in exchange for my opinion. I find this fragrance really strong, a little too strong for my liking. The fragrance also smells artificial it does not smell natural at all. The pump function on this bottle works well and I am able to get the product out easily and apply it onto my hair. It makes my hair feel really soft and lovely. It makes my hair less brittle and more gentle and more shiny as well. My hair feels and looks really good and a lot better after applying this product into my hair.

I was excited to receive this to trial as I’m already a fan of the Redken Acidic Bonding range. Just after one use of the Redken Acidic Bonding Concentrate 24/7 Night & Day Serum, my hair felt smoother, softer, and more manageable and stayed that way until my next wash. My hair didn’t go oily or flat, it’s like the serum added a boost of vitamins to my hair. It even looked less dull. On days that I didn’t apply it I still felt my hair was soft and manageable. I like that I can use it on both wet or dry hair so I only need to have one product in my cabinet not two!

I’ve used the Redken Acidic Bonding Concentrate 24/7 Night & Day Serum for a few weeks and it’s been a nice, easy upgrade to my hair care routine. It absorbs quickly and doesn’t leave any weird residue or stickiness. My hair feels smoother and stronger with less frizz, fewer tangles, and it looks healthier after styling. It’s easy to work into a routine as it’s flexible in ways to use. I like this as it means fewer products to buy and store. You can apply before blow drying or when hair is already dry. The scent is subtle and a little goes a long way. If your hair is feeling dry or over-processed, this is a great option.

redken Acidic Bonding Conentrate is a game changer. redken has done it again! delivered an incredible product If you want a product that delivers this is it. It is a magic potion in a bottle. It transforms your hair, really giving it the nutrients it needs to flourish and to shine. The scent is incredible, you only need a little product, as it goes a long way! Your hair will just drink it in! Redken have always created products that deliver, although the price point is high, this one does really deliver on its promise.