Kerastase Chronologiste Overnight Youth Serum 90ml
Kerastase Chronologiste Overnight Youth Serum 90ml
Kerastase Chronologiste Overnight Youth Serum is an age-corrective night treatment designed to reduce the visible signs of hair ageing while you sleep.
Infused with Pro-Xylane™ and Ochrophyta Algae, the lightweight formula helps revitalise the hair fibre, improve strength, reduce frizz and enhance shine overnight.
Its transformative quick-break texture melts instantly into the lengths and ends, leaving hair with a smooth, refined finish while enveloping it in the signature Chronologiste fragrance.
Benefits
- Helps reduce visible signs of hair ageing
- Revitalises the hair overnight
- Helps increase the appearance of hair fibre thickness
- Reduces frizz
- Enhances shine
- Improves hair strength
- Leaves hair feeling smoother and more refined
- Lightweight leave-in formula
- +5.7% increase in fibre diameter after one use*
- 66% less frizz after one use*
- +32% shine after one use*
- +92% more strength after one use*
- 77% said their hair felt revitalised**
*Instrumental test after one use of Overnight Youth Serum.
**Consumer test after one application of the full Chronologiste routine: Bain + Masque + Overnight Serum.
Key Ingredients
Pro-Xylane™
A green chemistry molecule used in the formula to help target the visible signs of hair ageing.
Ochrophyta Algae
A bio-sourced deep-sea algae selected for its regenerative properties and ability to support healthier, more revitalised-looking hair.
Made Without
Parabens.
How to Use
Apply to dry or damp hair before bedtime.
Spread one pump between the hands and distribute through the lengths and ends.
Leave in overnight.
There is no need to rinse in the morning.
In case of direct contact with eyes, rinse immediately and thoroughly.
Couldn't load pickup availability
Don’t miss out on this limited-time advantage crafted for you
Specifications
Specifications
Shipping & Return
Shipping & Return
EFX Returns & Refunds Policy At EFX, our customers come first. Whether you shop online or in-store, we aim to make your experience smooth and hassle-free. We also comply with the New Zealand Consumer Guarantees Act and the New Zealand Fair Trading Act.
Change of Mind : We cannot offer refunds, store credit, or exchanges for items purchased if you simply change your mind. Please purchase carefully.
Sale Items: All sale items are final sale. Refunds, store credit, or exchanges cannot be offered.
Exchange of Products: If you accidentally purchase the wrong product (for example, conditioner instead of shampoo), contact us within 48 hours of purchase. We’ll assist you promptly.
We do not accept exchange Electrical items Hair accessories and Combs Hair colour products and bleach Skincare products.
Please provide: A description of the issue Your date of purchase Proof of purchase Requirements for
Exchange: Bring the original packaging (opened packaging cannot be accepted)The product must be unused
Faulty Items: If your product is faulty, contact us within 48 hours of purchase. We will assist promptly. Please provide A description of the fault Your date of purchase A photo / video of the faulty item (if possible)We will assess the issue and provide a solution in accordance with your rights under New Zealand law.
Wrong or Damaged Items by Courier: If you receive the wrong item or it is damaged during delivery: Take a photo of the item and make a video as proof. Contact us within 48 hours of delivery at 03 477 3187 or Johnefxhair@gmail.com
Important: Do not dispose of the item until we have assisted you. Gift Vouchers, Gift Cards and Gift item purchase for your loved one Non-refundable and cannot be exchanged for cash Cannot be used to purchase other gift cards Purchases made with gift cards will not receive change
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

