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Olaplex N°.9 Bond Protector™ Hair Serum | Heat Protectant & Softens, 90 mL

Based on 7,241 reviews
Condition: New
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$32.00

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027

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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Nov 4
Order within 10 hours and 45 minutes

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At a glance

Condition
New
Dimensions
1.38 x 1.38 x 6.63 in; 3.2 oz
Weight
3.2 oz
Language
English
Scent Name
Unscented
Item Form
Lotion
Liquid Volume
90 ml

Features 4

  • 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.
  • KEY BENEFITS Improves style retention and reduces tangles and static Protects color and provides satin shine 450oF/232oC heat protection and 48-hour pollution protection
  • Clinically Proven Instantly shields hair from pollution 48 Hr OLAPLEX Pollution Protection Index
  • INGREDIENTS PVP A flexible polymer that helps maintain hair style and shape. Cetrimonium Chloride Conditions, smoothes, softens, and has an anti-static effect.

Specs 18

Language English
Product Dimensions 1.38 x 1.38 x 6.63 inches; 3.2 ounces
Item model number 20142284
Department Adults
Manufacturer Olaplex
Product Benefits Satin shine without silicone. Paraben Free.
Hair Type All, Chemically Treated, Coily, Color Treated, Curly, Damaged, Straight, Wavy
Scent Name Unscented

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


The miracle hair product you have been looking for!!
This is the holy grail of hair products. I am in my late 40s and have thin, dry, color damaged hair. My hair has been frizzy and I could only wear a ponytail and even in that it would become a tangled rat mess. I have tried 100s of dollars in products from Keratin hair treatments, Aveda products, Nexus, Pantene, Its a 10, blowouts EVERYTHING under the sun and nothing was working. I was ready to shave my head and start over. Then I found this and read soooo many reviews and said shoot all I have to lose is more money. So for my fine, thin, color/highlighted damaged hair I got the 4/5 shampoo and conditioner, weightless nourishing mask,#3 Bond building hair and the #9 Bond Protector. My hair is now SOOOFFFTTT, not frizzy even when it is humid out (I live in the desert) so not many humid days until recently. This is all in just 3 days!!! Day one I used the Shampoo and Hair mask with already noticeable difference, Day 2 and 3 I used only the shampoo and conditioner. I started with the small bottles at $30 each and I am so far very pleased and plan on once I run out getting the larger bottles. I will tell you that you need a very very small amount of shampoo, it goes a LONG ways. The conditioner maybe a nickel size amount as it also goes a long ways. When I first used this and was done rinsing my hair, it did not feel soft and I was thinking okay I am going to not have fun brushing my wet hair and it was going to be a waste of money. Boy I was fooled. even though my hair did not feel soft and slick after conditioning, the wet brush I use as always just glided thru my hair with such ease. I was like oh okay and then once I dried it I was completely shocked at the difference the first wash alone had made. There were no tangles and the entire day my hair has been smooth, soft and manageable! I say take your chance and get this product, I hope you are as happy as I am with this. I plan on tossing every other hair product away now that this is the only thing that genuinely works for my hair in a way that I have never experienced with a hair product before. ... show more
Reviewed in the United States on January 8, 2026 by Flippo

A Little Goes a Long Way!
I absolutely love Olaplex No. 9! It leaves my hair feeling soft, smooth, and healthy without weighing it down or making it feel greasy. I use it before heat styling, and it helps control frizz while giving my hair a silky, polished look. A small amount goes a long way, so the bottle lasts quite a while. I've noticed my hair feels more manageable and looks shinier since I started using it. It's become a regular part of my hair care routine, and I'll definitely keep repurchasing it. Highly recommend for anyone looking for a lightweight heat protectant that actually makes a difference. ... show more
Reviewed in the United States on June 24, 2026 by Jackie F

Pricey but a Good Product
This is the second time that I’ve ordered this product. It is pricey, but worth it for me. I have natural coily curly hair. This kept my hair well moisturized. When I was without it for a few days, nothing else that I tried helped. My hair would tangle easily and little balls would form at the ends and there was breakage. This works for me so I guess I’ll stick with it. A little goes a long way, best used on slightly damp hair. In the morning I would spritz a little water on my hair, then rake the syrum through with my fingers. ... show more
Reviewed in the United States on October 18, 2026 by Kindle Customer

I'm obsessed with all my Olaplex products
I'm obsessed with all of these products this N9 I just added to my collection. This works great after showering. I put this on and blow dry my hair straight and I don't have to use a straightener or curling iron. I feel my hair is softer has just the right volume and frizz control. This is a great hair serum and pair as well with the rest of my Olaplex products. ... show more
Reviewed in the United States on September 21, 2026 by Nu-Nu

HAIR BOND PROTECTOR SERUM
Second time buying this and I'll definitely keep buying it. I always try to grab it when it's on sale for Prime Day or Black Friday because it's such a good deal. This is a must-have for my crispy bleached hair. It makes my hair feel so much softer, helps with tangles, and I always use it before heat styling. I don't like running out of this stuff. Happy with this! ... show more
Reviewed in the United States on June 29, 2026 by Rosie

Nice, soft results, easy to comb through.
It feels nice and I could comb through my hair easily. The package felt light. I was thinking maybe someone returned it after using it, but didn’t seem to be the case since it took several pumps to get solution. I have long, chlorine lightened hair and it feels soft after applying it. It’s crazy how expensive a small container of product is, but that is across the board with other products too. ... show more
Reviewed in the United States on June 26, 2026 by Jenny

The brand
I love olaplex
Reviewed in the United States on October 1, 2026 by Emely

Light bottle but scant amount delivers
Lightweight bottle for price, yet has delivered with high protection for fragile hair.
Reviewed in the United States on October 4, 2026 by Dovie
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