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OlaplexNo. 9 Bond Protector Nourishing Hair Serum
Highlights
This ultra-lightweight, heat-protective hair styling serum creates a satin shine and lasting style retention while reducing tangles and static. Plus, it provides immediate pollution protection. Pollutants can bind to hair and cause free radical damage that affects the appearance of hair health. No.9 shields hair from pollutants for up to 48 hours.
Clinically Proven
Instantly shields hair from pollution
48 Hr OLAPLEX Pollution Protection Index™
Directions
1. Apply a small amount to clean, damp hair working upward from ends to roots. Use more as needed for longer, thicker hair.
2. Style as usual. Air-dry for a soft texture. Blow-dry for a smooth finish. Diffuse for defined waves or curls.
Test results
Before + After:UNRETOUCHED IMAGES*
*Results may vary. Results achieved by cleansing with N°4 Bond Maintenance® Shampoo, conditioning with N°5 Bond Maintenance® Conditioner, and applying N°9 Bond Protector Nourishing Hair Serum to damp hair before
Ingredients
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.
This list of ingredients may be subject to change, please consult the packaging of the product purchased.
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+Offer
FREE N°.3PLUS Complete Repair Treatment 30ml when you spend £45 on Olaplex.*
Transform damaged hair in just 3 minutes before you shampoo with N°.3PLUS.
*One free gift per order. Valid until the 1st of April or whilst stock lasts. Your free gift will automatically add to the shopping bag page. Total at order summary must be £45 or more worth of Olaplex products, after any Promotion Code, Brands You Love discount and before delivery charges are applied. Cannot be used in conjunction with any other Promotion and this offer is not applicable to previously made or pending purchases.
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Rated 5 out of
5
by
Morgan from
Best ever
My favourite heat styling product ever! Smells divine and makes my hair so shiny without weighing it down
Date published: 2026-03-28
Rated 5 out of
5
by
Lida from
Lovely - just needs to be bigger.
I really like this serum but there just isn’t enough in the bottle to justify the money. Make bigger bottles!! Otherwise it’s great. Super hydrating and nourishing.
Date published: 2026-01-30
Rated 5 out of
5
by
Kaali from
Works well on my curls
Fantastic results on my curly, highlighted hair. Leaves it feeling soft and smooth, no stickiness, with a light scent
Date published: 2026-01-17
Rated 4 out of
5
by
Samira from
Great hydration and shine
This serum is lightweight, non-greasy, and leaves my hair feeling soft, smooth, and healthy. It adds noticeable shine and helps tame frizz without weighing my hair down.
While it’s excellent for hydration and overall hair health, I didn’t see a dramatic difference in repairing split ends — still, it makes hair easier to manage and looks polished.
Date published: 2025-12-05
Rated 4 out of
5
by
Daisy from
Makes air dried hair soft and smooth
Love this product use with or without styling. I tend to leave my hair to air dry and it keeps it soft and smooth
Date published: 2025-10-26
Rated 5 out of
5
by
Jen from
Must have
Makes my hair super soft even with all the damage I have from bleaching.
Date published: 2025-10-19
Rated 5 out of
5
by
Catherine from
Changed my hair
I use this every wash and it’s genuinely changed my hair! So much healthier
Date published: 2025-10-16
Rated 5 out of
5
by
Shamaila from
I bought this product last year and ever since i havent had the need to straighten my hair because it gets rid of all the frizz!!
Date published: 2025-09-10
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