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Key Benefits
Results With One Use


UNRETOUCHED IMAGES*
*Results may vary.
Recommended Routine
Common Questions
Nº.9 Bond Protector Nourishing Hair Serum is an anti-damage, out-of-shower styling serum with a formula that protects, repairs, and nourishes the hair.
OLAPLEX recommends applying Nº.9 Bond Protector Nourishing Hair Serum to damp or wet hair as a first step in any styling routine.
Nº.9 Bond Protector Nourishing Hair Serum can be used by all hair types and textures.
Nº.9 Bond Protector Nourishing Hair Serum is a serum with primary benefits of manageability and heat protection up to 450°F/232°C. Nº.6 Bond Smoother® is a styling cream with primary benefits of frizz and fly-away control up to 72 hours, hydrating and smoothing.
No, Nº.9 Bond Protector Nourishing Hair Serum does not contain silicones.
Reviews
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1 to 8 of 1361 Reviews
1 – 8 of 1361 Reviews
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5 out of 5 stars.
Beautiful every time!
4 days ago
I received a free sample of this product with my last order and I was not sure if I should be using the No 6 instead until I tried it and I was so amazed at the difference in the feel of my hair. I have straight, fine, very highlighted hair and this is by far the most wonderful finishing touch to every one of the ways I wear my hair. From time to time I use the oil VERY lightly when I am looking for an extra smooth look BUT I always use No 9!
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Breakage / Weakness / Visible Damage
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Lightweight but makes a big difference
27 days ago
I love how light this serum is — it doesn’t weigh my hair down at all. It helps with frizz and makes my hair feel soft, smooth, and clean. I really enjoy using it on damp hair before styling — it just makes my hair look better without any heaviness.
Did this product help address any of the following hair concerns:Dryness
Would you descibe your hair as:Dry
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Excellent product
4 months ago
Received as a gift for purchase of 4 & 5. Best product I’ve used for my curly frizzy hair
Did this product help address any of the following hair concerns:Frizz, Breakage / Weakness / Visible Damage, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Good one
4 months ago
Great heat protector, doesn’t weigh hair down. Tames frizz *some*. Texture is a bit slimy.
Did this product help address any of the following hair concerns:Frizz
Would you descibe your hair as:Oily
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Miracle!!
4 months ago
I received this as a gift with purchase. I was skeptical since I have thin straight hair. I decided to try any way and it is a miracle. I use it on semi dry hair, 1 pump, before using my hot brush. This adds shine and stops frizz even in humidity. Does not weigh my hair down! I’ll repurchase!!
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Frizz
Would you descibe your hair as:Lifeless / Lacking Volume
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
Love this product
6 months ago
I love this product, works great if I style my hair straight or curly.
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Frizz, Breakage / Weakness / Visible Damage, Curl Support, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
OMG
9 months ago
I am a new Olaplex gal. I have never in my life been more blown away by a hair care line! This stuff is the Holy Grail. I don't know if it's the number nine followed by the number six and seven mixed together in my hands (a little trick I learned from texting with an Olaplex expert) which is another awesome feature that this company offers. But my hair that was NOTICABLY DAMAGED like three weeks ago (I mean I wasn't styling or blowdrying because of how crazy it looked) is now polished, looks fantastic and I am actually happy with my hair. I am seriously in shock of what this stuff does to my hair! I can't say enough good things about this company!!!!!! I DO KNOW THAT I WILL NEVER EVER EVER USE ANYTHING ELSE ON MY HAIR. And that is something that I have never ever said before.
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Frizz, Breakage / Weakness / Visible Damage, Dryness
Would you descibe your hair as:Colored / Chemically treated
Yes, I recommend this product.
Helpful?
5 out of 5 stars.
No.9 is the BOMB
10 months ago
A while ago, I chose a small tube of #9 as a free offer when purchasing my routine products and I stored it away.
Recently I had to make a short trip & because it was travel size, I brought it along and used it for the first time.
OMG. I've loved everything I've tried so far in the Olaplex world, but this was exceptional!
It only took a little bit of this clear serum to work through my hair...it rinsed out very clean & easy. But when dry, my hair seemed to have more body...it was smooth & shiny and stayed that way! .I'm absolutely thrilled with this product! Thank you!
And one more thing...my carry-on got flagged. A female TSA supervisor happened by as an agent pulled out my bottle of Olaplex shampoo.
She said "Oooh, Olaplex! Good choice, good choice...love that stuff!"
All I could say was, "Me too!"
Thought you'd like to hear that unsolicited comment.
Did this product help address any of the following hair concerns:Dullness / Lack of Shine, Frizz
Would you descibe your hair as:Frizzy / Unruly
Yes, I recommend this product.
Helpful?