Replenishing Thermal Care Hair Serum
A lightweight leave-in heat protection serum that shields the hair fibre from blow-dryers, straighteners and curling irons, up to 230°C, helping prevent the dehydration and fragility that heat styling causes.
The shine is exceptional. Use it as the final step of the Rebuild routine for a mirror-like, glass-hair finish: reflective, smooth and glossy, even after heat styling.
Made with phyto-keratin to reinforce weakened areas, pracaxi oil to help keep keratin intact, and Zhu Ling mushroom extract to help reduce protein loss and hold your style for longer. It coats hair in a weightless protective film, with no residue or heaviness, leaving it stronger, smoother, frizz-resistant and shiny.
Tested under real heat. Hair treated with the Rebuild routine (Replenishing Shampoo, Replenishing Conditioner and this serum) was put through 4 rounds of 20 passes with a straightener at 230°C. Treated hair showed a higher protein denaturation temperature than untreated hair, indicating a stronger internal structure and confirming the protective effect against heat damage. In a separate cyclic fatigue test on bleached hair, the same routine helped hair withstand more breakage cycles than untreated hair.
How to use: apply a small amount to damp hair, focusing on the mid-lengths and ends. Do not rinse. Blow-dry and style as usual. Protection lasts until your next wash, so there's no need to reapply before each heat tool. Use after the Replenishing Shampoo and Replenishing Conditioner.
Dermatologically tested, nickel tested, vegan and cruelty-free. Read more: how to use heat protectant (and the right straightener temperature).
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Key ingredients and INCI
Ingredient information is subject to change. To ensure you have the most up-to-date and accurate list, always consult the product packaging you receive.
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LOVE this. I'm so guilty of straightening my hair most days and not always washing between and it's such a faff to dampen hair and put heat spray on each morning. You can literally use this once and it protects against heat till you next wash your hair. Saves me so much time. Warning though, you only need a small small amount, I used way too much the 1st time I used it.
A product that rebuilds while protecting! This product is amazing, my hair is in need of a bit of extra TLC and this gives that while also protecting between washes, a two in one you never knew could exist!
Love this, my hair is on the slightly more damaged side and this is good because it doesn't only heat protect it all helps to build the hair back up. My go to heat protectant!
Switched to this when it came out and I would buy again
This is stunning but my only criticism is that your hair needs to be damp before you use it, which it should be but im such a sucker for spraying some heat protect in dry hair if I want to curl it the next day. Still such a great product.
Use this every week as part of my haircare routine, put it on after washing my hair and then do my blow-dry as normal but love it! Really helps protect my hair
Best heat protect and serum, I will never go back to buying a cheap one that only lasts a couple months. 10/10
My hairdresser used this on me and now I am obsessed. Need like 1 squirt of it and it covers my whole head - past shoulder length hair.
Been using this before drying and curling. My hair feels softer afterwards and the style lasts better into the next day and it smells so good
Been using this before drying and curling. My hair feels softer afterwards and the style lasts better into the next day and it smells so good
Been using this before drying and curling. My hair feels softer afterwards and the style lasts better into the next day and it smells so good
Been using this before drying and curling. My hair feels softer afterwards and the style lasts better into the next day and it smells so good