Olaplex No. 9 Bond Protector Heat Protection and Frizz Reduction Nourishing Hair Serum 90ml
You'll earn 28 Status Points with this product
£28.00
Or 4 interest free payments of £7.00 with clearpay
In stock | Usually dispatched within 24 hours

Founded in 2014 by Dean Christal, OLAPLEX has changed the landscape of the hair care industry. After employing two chemists to find a chemical that wouldn't damage dyed tresses, the team formulated the brand's proprietary, patented bond building technology. Joining the ranks (and our hair care collection) is the No.9 Bond Protector Nourishing Hair Serum (90ml) which creates a protective layer over strands to stop pollution and environmental aggressors in their tracks.
Dry, damaged lengths at the top of your beauty bugbear list? Allow us to introduce you to the No.9 Bond Protector Nourishing Hair Serum (90ml), a nourishing treatment that protects from free radicals, pollution and heat damage.
Restoring chemical-treated, heat-ridden hair and leaving it full of shine, soft to the touch and easier to style, you'll be reaching for this multitasking staple time and time again. Protecting from future damage, it's packed with antioxidants to neutralise free radicals, shield against pollution, guard your hair from breakage and defend against heat styling. Yep, this really is what hair care dreams are made of...
Water (Aqua/Eau), Propanediol, Betaine, Quaternium-22, Sodium Hyaluronate, Bis-Aminopropyl Diglycol Dimaleate, Cetrimonium Chloride, Panthenol, Hydroxyethylcellulose, PVP, Guar Hydroxypropyltrimonium Chloride, Furcellaria Lumbricalis Extract, Pelvetia Canaliculata Extract, Xylitylglucoside, Polyquaternium-44, Anhydroxylitol, Maltitol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xylitol, Sorbic Acid, Phenoxyethanol, Ethylhexylglycerin, Sodium Benzoate, Fragrance (Parfum), Citral, Citronellol, Hexyl Cinnamal, Limonene, Linalool.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
Apply a small amount to damp, towel-dried hair working upwards from ends to roots. Use more as needed for longer, thicker hair. Air-dry for a soft texture or blow-dry for a smooth finish. Diffuse for waves or curls.
Transparency lies at the heart of our philosophy which is why we have partnered with tech-platform – Provenance – to cut through the industry ‘noise’ and equip you with key facts that matter. A 'proof point' with a green tick means a third party has verified the accuracy of the statement whereas no green tick means that there isn't independent confirmation (yet!), but that the brand has still supplied substantiating evidence (which you can view yourself). Discover the proof points for this product below.
Frequently Bought Together

This item
Olaplex No. 9 Bond Protector Heat Protection and Frizz Reduction Nourishing Hair Serum 90ml
£28.00
Other Customers Bought
Customer Reviews
5 stars rating 185 reviews
4 stars rating 67 reviews
3 stars rating 32 reviews
2 stars rating 11 reviews
1 stars rating 6 reviews
Top Customer Reviews
Thanks for sharing your thoughts! Please remember that results will vary from person to person. We're proud to say that all customer reviews are independent, authentic and do not represent the views of Cult Beauty or The Hut Group.
Serum
Tried the new olaplex serum, my hair felt dry afterwards. The best olaplex product that works for me is the no 3 treatment.
by Hazel Verified Purchase
Was this helpful?
Pretty normal
It helps with frizz to a certain extent but if your hair is really dry and frizzy, the bonding No 3 oil is more effective
by Annie Verified Purchase
Was this helpful?
Brought curls back to life
Worked Harry Potter style magic on my annihilated natural curls. Not really sure how or why it worked like this, but was very pleasantly surprised. Would definitely repurchase.
by Annie Verified Purchase
Was this helpful?
Olaplex 9
I am using Olaplex shampoo and conditioner and bought this to use after washing my hair. There was no way it acts as a detangler. I couldn’t brush my hair without pulling out lots if it. It left my hair feeling dry and frizzy. I won’t be using it again. A waste of money.
by Angela Verified Purchase
Was this helpful?
Liked it didn’t love it
I’ve got mixed feelings about no.9 serum. My hair is chemically damaged from mid length to end (jaw length Bob) and after using this solidly for 3 weeks, I’ve found that there has been moderately less breakage and a subtle shine to the healthy regrowth. If too much serum is used then my hair becomes very sticky and hard to blow dry and not enough then it will frizz. Also when using straighteners they would drag rather glide along the section of hair. It took some time to find the right amount to use but the huge plus is the amount of volume it creates. The promise of style memory is spot on. I would say this a Marmite product - you’ll either love it or hate it. Personally I will try it again once my hair is in a better condition.
by Dawn Verified Purchase
Was this helpful?
I wanted to love it but…
Not like your usual serum , it feels a lot more water based which actually left my hair feeling frizzier . Instead of leaving my hair silky like traditional serums , it left my hair feeling dry and sticky . I’m going to try mixing it with argon oil as I’m interested in its bond building qualities , but as a fan of the entire range I was sad to be disappointed with this one . Will finish it , but won’t re-purchase .
by Charlotte Verified Purchase
Was this helpful?
Amazing
Really helps to smooth my hair and decrease frizz - more so than any other product I’ve used. Will definitely be repurchasing!
by Holly Verified Purchase
Was this helpful?
Really lovely
This is a lovely light serum that glides into hair, I leave mine to part air dry then finish with the hairdryer and it leaves your hair lovely and soft and smooth with a lovely shine. I also use the other leave in cream they do (can’t remember the number, this it’s 8 which I love and is thicker than this one so if you have thicker hair like me I think that one’s better but if you find that one too heavy then this one is for you. I’ll use both as I love them both
by Sarah Verified Purchase
Was this helpful?
Amazing
This has helped my hair so much, repaired all the damaged split ends
by AB Verified Purchase
Was this helpful?
Amazing product - best yet
This is s game changer. It smooths and makes my fine, fly away hair look amazing whether blow dried straight or left to air dry.
by Julie Verified Purchase
Was this helpful?