REDKEN Acidic Bonding Concentrate Leave-In Treatment, Bond Repair, Heat Protection, Adds Smoothness, Repairs and Protects, 150 ml

I was surprised at how good this product is, it’s replaced heat protection spray and leave in oil. My hair is in the best condition it’s ever been. It feels and looks strong and shiny. It also holds after I’ve straighten it which is a first. Smells amazing too. If there’s one product you should buy it’s this! Cannot recommend enough

I have coloured hair which is fine and dry. This product is amazing. Not only has it made my dry and fine hair manageable but i no longer suffer from the fizz that you get from constantly colouring your hair. You can apply it after you shampoo and condition your hair. Apply a small amount (it goes a long way) to towel dried hair. Start at your ends first then work up to your roots. You can feel the difference straight away. Your hair feels soft and no more fizz or dry ends. The tube lasts ages making it good value for money.

I am trying to grow my hair down to my bust, but maintaining the condition of my hair has been impossible. My hair is very coarse with split ends. I bought this leave in conditioner 4 weeks ago and have used it every time I blow dry my hair. It's the best conditioner I've ever used. The condition of my lengths between washes is greatly improved but not amazing. It doesn't protect against hot and humid weather, my hair still becomes incredibly frizzy in those conditions. I will be buying this again, I feel sure that when the weather cools down and I start trimming my hair again it will look better. I only use small amounts of the product as it's very expensive.

At first I was using this product when blow drying my curly hair straight and I couldn’t understand why my hair looked horrific, dry and hideous. I had to do extra smoothing and ironing. I was ready to put this product in the bin. And then I started using it without blow drying and left my curly hair to dry naturally and I am absolutely blown away. This is the first time in my life I have found a product that has almost completely eliminated frizz and left me with perfect curls. I might actually wear my hair curly more often because it’s the first time ever that it looks nice. I’ve never been able to wear my hair curly before because whatever I did, it always dried a frizzy mess. I am in my 40s, I have extremely high porosity, 3A - 3B curly hair and I’ve been through countless products in my life to manage my hair. This is the first time I found a product that works.

This stuff is actually amazing. I usually have quite dull frizzy hair after blow drying. It usually only looks good after coming back from the salon. But now it is shiny, smooth and strong all the time. My hair blows out straight easily and also holds styled curls really well. I will be rebuying.

My hair definitely feels soft but I find when straightening it it doesn’t look as smooth as it usually does. I’ve been using it for just over 2 weeks along with the acidic bonding shampoo and conditioner, the shampoo and conditioner are really great but my hair seems a bit bulky when using the bonding leave in conditioner. One thing I must add is that I don’t have the breakage anymore there’s no loose hair on comb or brush so that’s good.

Amazing product. Protected my hair really well against heat.

Wonderful tool, hair very soft