Acidic Bonding Concentrate 24/7 Night & Day Serum

[This review was collected as part of a promotion.] I have naturally wavy hair that I straighten in the winter months as I don't like to wait for my hair to air dry when it's cold outside. I'm in WI, I have always struggled with having dry, brittle hair in the winters and now I'm graying so it's getting worse. Styling my hair with heat has been rough on my hair, that is, until I used the Redken night&day serum. So far I've only used it as a heat protectant before blow drying and straightening for the past week. Immediately the results were sleek, smooth hair after drying and minimal straightening required - I've never experienced anything like this before! And now my hair overall feels softer and smoother. I'm in love!

[This review was collected as part of a promotion.] I have bleached hair, so I am always looking for conditioning and repairing hair products to minimize damage and make my coarse, overprocessed hair more manageable. The Redken Serum has a light lotion consistency, so more watery than a hair mask which makes it appropriate for daily use. I apply it to the dry ends of my hair, and while other products such as hair oils leave my hair weirdly crunchy the next day, this serum sinks into my hair without leaving any noticeable residue. I have tried soo many hair products including olaplex and I really like this serum! Also, it’s great that it can be used night and day.

[This review was collected as part of a promotion.] All of the Redken products that I have tried in the past have all been high-quality and this new day and night serum is no exception. It can be used any time during the day or at night and it has simple instructions that come right on the bottle. I found that after just a few days of using it, my hair looks and feels softer and healthier than it did before. The product itself has a nice smooth and creamy texture that has a very clean and refreshing scent. The packaging is nice and sturdy with a beautiful reflective finish. Based on the average retail price and the quality of product that you are getting, I would say that this is good value for money. I would recommend this product.

[This review was collected as part of a promotion.] The Redken Acidic Bonding Concentrate 24/7 Night & Day Serum is an absolute game-changer for damaged hair. Its lightweight texture absorbs quickly without leaving any greasy residue, making it ideal for both day and night use. The serum has a subtle, pleasant scent that feels luxurious without being overpowering. After consistent use, I noticed significant improvements in hair strength and smoothness, especially in areas with breakage. The packaging is sleek and functional, allowing for easy application. Overall, it’s an effective solution for restoring hair health and protecting it from daily stress.

[This review was collected as part of a promotion.] I’ve always been impressed with Redken products, and their new day and night serum lives up to the brand’s high standards. This serum is super versatile—it can be used anytime during the day or as part of your nighttime routine, and the directions are clearly printed on the bottle. After just a few days of using it, I noticed my hair felt softer and looked much healthier. The texture of the serum is smooth and creamy, with a fresh, clean scent that’s really pleasant. The packaging is also well-designed, sturdy, and has an eye-catching reflective finish. Considering its quality and reasonable price, I think it offers excellent value for money. I’d definitely recommend this product to others!

[This review was collected as part of a promotion.] Amazing treatment!! Calmed my frizzy hair and split ends to shiny non frizzy high gloss shine. Can run my fingers through my hair without all the knots and ripping hair strands out ! Loved this treatment best yet I have tried to date ! I have straight long hair that’s frizzy from color damage and outdoor damage as well as split ends. This serum has by far exceeded my expectation I tried the trial size and lasted forever used for weeks. Using a dime size amount mid shaft to ends on wash days. 3 Times a week Only gave 4 stars due to price. Hard to justify the high price for a serum.

[This review was collected as part of a promotion.] I recently tried the Redline Acidic Concentrate 24/7 Night & Day Serum, and I am absolutely thrilled with the results! This serum has a lightweight texture that absorbs quickly into my hair, leaving it feeling hydrated and refreshed. I've noticed a significant improvement in my hair's texture and brightness since I started using it. The formula feels luxurious and delivers on its promises, making my haircare routine feel more effective. I love knowing that I can use it both day and night for continuous benefits. Highly recommend this serum for anyone looking to elevate their haircare game!

[This review was collected as part of a promotion.] I am obsessed with this product!! It is winter time which means a lot of things are super dry out right now, including my skin and hair. I waited a few days to write this review so I could give it an honest try and I can attest to the fact that it has pretty quick results!! Within 3 days of usage, my hair was softer and shinier- in a good way, and felt so much healthier! The smell is lovely too and blends well with my shampoo. I also really liked the packaging as it is sleek and simple with a chromatic look to it. The pump was durable and worked just fine. I have 0 complaints and would recommend to anybody looking to revive their hair. Pro tip- apply to slightly damp hair starting from the ends!