Olaplex Nº. 9 Bond Protector: Nourishing Hair Serum & Heat Protectant | Softens, Nourishes & Reduces Tangle & Static | For Coily, Curly, Straight, and Wavy, 90 mL / 3.0 Fl Oz
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Features
- 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.
Description
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Is Discontinued By Manufacturer : No
Product Dimensions : 1.38 x 1.38 x 6.63 inches; 3.2 ounces
Item model number : 20142284
UPC :
Manufacturer : Olaplex
Best Sellers Rank: #4,505 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #10 in Hair Styling Serums
#10 in Hair Styling Serums:
Customer Reviews: 4.6 4.6 out of 5 stars (7,047)
Product Benefits: Satin shine without silicone. Paraben Free.
Hair Type: All, Chemically Treated, Coily, Color Treated, Curly, Damaged, Straight, Wavy
Scent Name: Unscented
Item Form: Lotion
Liquid Volume: 90 Milliliters
Number of Items: 1
Unit Count: 3 Fluid Ounces
Item Volume: 90 Milliliters
Brand Name: Olaplex
Manufacturer: Olaplex
UPC: 850018802826 850018802284
Global Trade Identification Number: 84, 91
Item Weight: 3.2 Ounces
Material Type Free: Formaldehyde Free, Gluten Free, Paraben Free, Silicone Free, Sulfate Free
Frequently asked questions
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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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on June 24, 2026 by Jackie F
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.
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Reviewed in the United States on January 8, 2026 Reviewed in the United States on January 8, 2026 by Flippo
Very nice silky texture that doesn’t require a lot for long hair. Doesn’t work very well for detangling but like for heat protection and can’t feel on my hair so no buildup.
Reviewed in the United States on July 3, 2026 by KrisH
If your hair is feeling dull, frizzy, or vulnerable to heat and pollution, Olaplex No. 9 might be the rescue remedy you’ve been waiting for. This leave-in serum is designed to protect, smooth, and revive your strands — and it’s earned rave reviews across the board. 🌟 What Makes It Special: • Triple-Action Formula: Combines Olaplex’s patented bond-building technology with red algae extract to strengthen hair, shield it from environmental damage, and boost shine. • Heat & Pollution Protection: Guards against heat styling up to 450°F and defends hair from pollutants and UV rays for up to 48 hours. • Lightweight & Non-Greasy: Unlike many serums, it doesn’t weigh hair down or leave it oily — even on fine strands. • Versatile Use: Works beautifully whether you air dry, blow dry, or style with hot tools. Some users even apply it to dry hair between washes for added smoothness.
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Reviewed in the United States on September 18, 2025 Reviewed in the United States on September 18, 2025 by Greidy Rojas
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!
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Reviewed in the United States on June 29, 2026 by Rosie
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.
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Reviewed in the United States on June 26, 2026 by Jenny
I love how this looks on my hair. Reduces frizz and helps my style hold while protecting from heat. Work the money to me and a little goes a long way!
Reviewed in the United States on June 18, 2026 by Amazon Customer
This stuff works surprisingly well! I tested it out by putting some on my dry hair on my ends and up toward my crown, focusing on areas with fly-aways. Then I followed it with straightening my hair with a flat iron. It made my hair significantly less frizzy and sleek looking. Once straightened the product seems to hold my hair in place—like giving it a new set-point. Instead of looking like wavy hair that’s been straightened my hair just looked like it’s naturally straight. I really love that. It took little effort with my straightener and less passes to straighten it. It’s now part of my regular routine and will likely stay that way unless they stop making it. My hair is down to my waist, thick but fine, and naturally wavy. My scalp can get oily easily with products, but I didn’t notice any difference in oiliness while using this. The smell is not very noticeable. It’s like a non-offensive, clean smell. It doesn’t compete with my perfume. The consistency is like a watery gel. It almost feels like hair gel when you put it on because you can feel it dry to the hair quickly. But it doesn’t make it feel stif, crunchy, sticky, oily or anything. It feels kinda perfect, like magic. It’s a cool product, I love it and recommend it!
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Reviewed in the United States on May 12, 2024 by Natalie