Olaplex No. 9 Bond Protector Nourishing Hair Serum
Chrissy’s Tip: This serum is a must for protecting your hair from heat and pollution while keeping it shiny, smooth, and tangle-free. It’s lightweight and works beautifully for all hair types!
The Olaplex Nº.9 Bond Protector Nourishing Hair Serum is a silicone-free antioxidant serum that shields hair from pollution for up to 48 hours while providing heat protection up to 450ºF (232ºC). It adds satin shine, reduces static and tangles, and improves style memory, leaving hair soft and manageable.
Pro Tip: Apply 1/2 pump to damp, towel-dried hair, focusing on mid-lengths to ends and working upward to roots. Style as desired for smooth, protected, and polished hair.
Best For: All hair types needing protection from heat and environmental damage.
| Key Features | Details |
|---|---|
| Heat Protection | Up to 450ºF (232ºC) |
| Pollution Protection | Up to 48 hours |
| Shine & Smoothness | Satin finish, reduced static and tangles |
| Application | 1/2 pump on damp, towel-dried hair |
FAQ
How long does the pollution protection last?
The pollution protection lasts up to 48 hours.
Can this serum be used before heat styling?
Yes, apply 1/2 pump to damp, towel-dried hair before heat styling for optimal heat protection.
Is the serum suitable for color-treated hair?
Yes, it is formulated to protect all hair types, including color-treated hair.

Nicholas Clarkson –
I use this serum before blow drying and flat ironing. My hair stays smooth and shiny without frizz. It’s especially helpful in city environments with pollution. No heavy residue, just a light, even finish.
Rebecca Gray –
My curly hair used to get tangled and static-prone. After using the Olaplex No. 9 serum, it’s much easier to style and feels softer. I apply it to mid-lengths and ends, and it works well with heat tools.
Anthony Wright –
It provides good heat protection and adds shine. I noticed less frizz after using it regularly. A little goes a long way, and it doesn’t leave a greasy feel.
Theresa Coleman –
I’ve tried several hair serums, but this one stands out. It protects against pollution and keeps my hair manageable all day. Works well with both heat and air drying.