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Rating: 4.5Based on 95 reviews
  • Most helpful positive

    Gry

    The post was made 14 hours
    Rating: 4 out of 5

    Serum – Chronologiste Overnight Youth Serum

    Was a bit skeptical about this at first because many such products can make hair greasy, but this one didn’t do that to my hair. I used it on the lengths before going to bed, and my hair felt softer and less dry the next day. I like that it’s light in the hair and doesn’t need to be rinsed out. It also gives a bit of extra shine without making the hair look oily. I also think it smells really good, and the scent gives a bit of a spa/salon feeling without being too much. It’s hard to say how much it actually does over time, but the hair definitely feels more well cared for when I use it. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    1 product in post Serum – Chronologiste Overnight Youth Serum
    49 views

  • Sanna

    The post was made 2 hours
    Rating: 4 out of 5

    Luxury

    Kérastase Chronologiste Overnight Youth Serum is light in texture and absorbs quickly without making the hair greasy. When you wake up, the hair feels softer, smoother, and more well-groomed. An easy way to give your hair a little extra care overnight. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    1 product in post Luxury
    3 views

  • Toneiren

    The post was made 3 hours
    Rating: 4 out of 5

    #smartsontestpilot

    Have tried 3 products from Kerastase for about 2-3 weeks now. Although there isn’t the biggest difference in appearance, there is a big difference in how the hair feels. It feels like the hair roots have lifted from the scalp again. It feels stronger and smoother. There is less hair loss. So it feels like the hair has been given new life. The only thing I took a little time to get used to was the scent. For me, a somewhat masculine scent. But these are individual differences in how we react to scent. It doesn’t smell bad, I want to emphasize that. All in all, very satisfied with how the products have affected my hair. And only a small amount of the products is needed, so they last quite a long time. But could have been a bit cheaper for my part. The review was conducted on behalf of Smartson. The test person has received the product free of charge.
    1 product in post #smartsontestpilot
    4 views

  • Mari

    The post was made 3 hours
    Rating: 4 out of 5

    Serum

    I have used this serum every night for 14 days, applied it to dry hair before bedtime and did not rinse it out. It absorbs quickly, smells good, but I’m unsure if I notice a difference in my hair... It doesn’t feel greasy like some other serums can, but after 14 days I had hoped it would reduce dryness and frizz even more. I have used it together with shampoo and treatment from the same series. I will continue using it and hope it gets better over time. Therefore, I don’t know yet if I can recommend it or not. But the scent, appearance, and consistency are absolutely top!!! Hence 4 stars (The review was conducted on behalf of Smartson – the tester received the product for free)
    1 product in post Serum
    2 views

  • Nan Bente

    The post was made 20 hours
    Rating: 5 out of 5

    Lovely serum

    I have tried the Chronologiste Overnight Youth Serum for 3 weeks now used together with Chronologiste Bain Régénérant Shampoo and Chronologiste Masque Régénérant hair mask After I damaged my hair with K18 and Olaplex two years ago, I have tried many different recommended products. In the end, I gave up and went back to my favorite Kérastase. It has helped my hair a lot. The lower lengths are still damaged but have improved a lot after using Kérastase products the last few months. Normally, I alternate between three different Kérastase variants but have now only used these three products for 3 weeks. The hair was only blow-dried with a Dyson dryer before and after the pictures. These products are just as fantastic as the rest of the Kérastase products. I would say the scent is very unisex. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    1 product in post Lovely serum
    33 views

  • Henriette

    The post was made 1 day
    Rating: 5 out of 5

    Effective Luxury

    I have tested this brilliant serum for Smartson over the past few weeks, and I am deeply impressed by how quickly and effectively it works. After a winter with frost and radiator heat, my scalp had become quite dry, but already after the first application, I could clearly feel that the product restored balance, and within a few days, my scalp was completely normal. A clear winner for hair and scalp
    76 views

  • Maria

    The post was made 1 day
    Rating: 5 out of 5

    Fantastic! ✨

    This is truly a luxury product for hair! 😀 I have thin, fine Nordic hair that easily becomes frizzy and dry at the ends. The hair also tends to get flat if the products are too "heavy." But this serum is so light and effective. I apply a few pumps to the lengths before going to bed, and in the morning the hair feels noticeably softer, shinier, and much more manageable. I feel that it nourishes deeply without weighing the hair down. For those of us with this Nordic/Scandinavian hair, which is often fine and sensitive, this serum is a perfect hit. It helps reduce frizz and dry ends while making the hair feel fuller and stronger. Simply a really good serum! The scent is magical! ✨ If you are used to Kérastase products, you can easily recognize it, but I think they really nailed it with this one! It smells incredibly good and just the right amount, and the scent doesn’t overpower. I have tested Kérastase Chronologiste Bain Régénérant Shampoo along with Kérastase Chronologiste Overnight Youth Serum and Kérastase Chronologiste Masque Intense Régénérant Hair Mask on behalf of Smartson, and the combination of all three is unbeatable! This absolutely wonderful trio will stay with me permanently! 😍
    57 views

  • Maria

    The post was made 2 days
    Rating: 3 out of 5

    Luxurious but Kerastase can do better

    The first thing that must be said about this night serum is the scent. It is more masculine than the other products in the series and almost a bit too strong when you lay your head on the pillow at night. But having said that, it is a good serum. The consistency is just right to distribute it evenly in the hair, and I find my hair softer in the morning. However, my blonde highlights need a bit more TLC than this offers, so I kindly but firmly go back to Kerastase Cica Nuit. The review was conducted on behalf of Smartson – the tester got to try the product for free.
    1 product in post Luxurious but Kerastase can do better
    106 views

  • Sandie

    The post was made 3 days
    Rating: 5 out of 5

    Doesn't weigh down and smells lovely

    I love that it doesn't weigh down or grease the hair and it smells lovely. The hair feels stronger. It's very easy to use since it doesn't need to be rinsed out. You can use it before going to bed, but I've also really enjoyed using it on the lengths after a shower. The review was done on behalf of Smartson – the tester tried the product for free.
    1 product in post Doesn't weigh down and smells lovely
    104 views

  • Nancy

    The post was made 4 days
    Rating: 5 out of 5

    Very satisfied

    As a woman aged 49, I am very satisfied with this serum after using it for a few weeks. My hair has been quite dry in the lengths, but this has made it much softer and smoother. I like that the serum is light in the hair and does not make it greasy, even when I use it before going to bed. In the morning, the hair feels less frizzy and much easier to style. It also smells very good without being too strong. I think the hair looks healthier and more well-groomed after using this together with the rest of the series. A big plus is also that it does not need to be rinsed out. The review was conducted on behalf of Smartson – the tester received the product free of charge.
    1 product in post Very satisfied
    142 views

  • Marthe

    The post was made 4 days
    Rating: 5 out of 5

    Kerastase's best overnight serum!

    I have tried several of Kerastase's overnight serums but didn't know this one existed! I used it in combination with the shampoo and treatment that go with it, and this serum is just amazing. It gives so much moisture and nourishment to the hair. I have used it after washing and also almost every night on dry hair afterwards. It doesn't leave a sticky feeling, absorbs well into the hair overnight, and I wake up to silky soft hair in the morning that's so easy to style, no static hair, and the hair looks healthy and shiny. The other serums are good too, but this one gave my hair so much more volume and shine in just a couple of days. The scent is absolutely magical, not too much but like a light hair perfume that I've received compliments on, for example at work from customers. Top-class product! The review was conducted on behalf of Smartson – the tester received the product for free.
    1 product in post Kerastase's best overnight serum!
    77 views

KérastaseChronologisteOvernight Youth Serum 30 ml

347 kr
Free delivery option available, can be sent immediately

Select size

30 ml90 ml

The New Chronologiste range offers youth-revitalizing care for hair longevity, not only by reducing visible signs of aging but also rebooting weakend hair to optimize hair health. The New Chronologiste has a targeted regimen to visibly improve five key signs of hair aging: frizz, dryness, dullness, lack of thickness, and lack of volume. The secret is the combination of two powerful ingredients: Pro-Xylane in serum: A renowned age-supporting ingredient that is renowed for renewing tissue from scalp to fiber, stimualting hair activity to increase hair shaft diameter and thickness. It also restores scalp hydration and elasticity, fostering healthy hair activity. Ochrophyta Algae in bain and masque: A bio-sourced deep sea extract that enhances skin barrier integrity, improves hydration, moisturizes, prevents split ends, and boosts shine and elasticity by binding with hair proteins. The Restorative Night Serum is optimized for nighttime application to maximize its efficacy. Drawing inspiration from skincare principles, this allows active ingredients an extended period to penetrate and act, minimizing interference from daytime environmental aggressors. This approach leverages the body's natural nocturnal restorative phase, optimizing absorption for enhanced hair health and manageability upon waking, while also providing a moment of self-care. Benefits after one night *: • Increases fiber diameter by +5,7% • -66% less frizz* • +32% shinier hair* • +92% more strength* • After the routine 77% say their hair feels revitalized** *Instrumental test after one use of the Overnight serum **Consumer test on 90 women after one application of the full Chronologiste routine (bain, masque + Overnight serum)


How to Use:

Apply on dry or damp hair before bedtime. Spread one pump into hands and distribute on lengths and ends. No need to rinse in the morning.

30 ml
  • Category:Serum

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