Olaplex No. 9 Bond Protector Nourishing Hair Serum, Heat Protectant, Softens & Weightlessly Nourishes, Reduces Tangle & Static, For All Hair Types, 3.0 fl oz
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Dec 11
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: #1,211 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #3 in Hair Styling Serums
#3 in Hair Styling Serums:
Customer Reviews: 4.6 4.6 out of 5 stars 6,335 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Dec 11
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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Learn more about financing & leasing here.
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Top Amazon Reviews
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 by Greidy Rojas Greidy Rojas
After using this serum for a few weeks, I’m really impressed. My hair was often stressed from heat styling and colour treatments, but with this product I notice it feels stronger, smoother and less frizzy. I apply it on damp hair from mid‑lengths to ends, before styling, and it doesn’t weigh my hair down. It also leaves a subtle, pleasant scent that lasts.
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Reviewed in the United States on November 6, 2025 by Liliana Liliana
I use this product almost every time after I towel dry my hair. It has become an essential part of my hair care routine, providing me with the perfect balance of moisture and hold. If I’m planning on wearing my curls, which are of the 2C-3A hair type, I’ll pair this product with the ouai curl cream. Together, they leave my hair so smooth and frizz-free, enhancing the natural beauty of my curls. The combination is incredibly effective, and I often receive compliments on how defined and healthy my curls look. Sometimes, I’ll just use this product without the curl cream, and it works really well if I’m just straightening my hair as well. The product has a unique ability to smooth out my hair, reducing the need for excessive heat styling. It provides a sleek finish that lasts throughout the day, keeping my hair looking fresh and polished. Overall, it’s a very versatile product, and it’s a must-have in all of my hair routines. Whether I’m curling or straightening, it consistently delivers great results. I highly recommend this product to anyone looking to improve the quality and manageability of their hair. It’s a game-changer and has definitely earned its place in my beauty arsenal.
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Reviewed in the United States on January 7, 2025 by joseph
This is truly a great product. It protects my hair from heat damage and leaves it feeling softer than before I purchased it. I wish it was a few dollars cheaper, but will hopefully grab it on a sale the next time.
Reviewed in the United States on October 25, 2025 by Sahira
I use heat tools often , and this serum has been a game- changer. It protects, tames frizz, and adds shine without making my hair greasy . The scent is nice too. Only reason i give 4 stars is the price - but the quality justifies it!
Reviewed in the United States on June 6, 2025 by Yuly García Yuly García
Only thing that keeps my curly hair healthy! For someone that has curly hair but loves heat, this really helps my hair stay soft, smell good but still curl after!
Reviewed in the United States on November 17, 2025 by Taynara Carvalho
Loveeeee this stuff. I used it consistently for a year and my hair is so strong and healthy compared to past years. Worth the investment! I have super thick and dense hair that requires excessive amounts of product to saturate; however, this bottle last me 3-4 months.
Reviewed in the United States on November 26, 2025 by Jacob Terrell
Great for aging dry hair. As I age my hair is more grey and that hair is stiff and dry. I've never been someone who likes to fuss with hair products or take the step to add conditioner during my showers. So this works great. You put a small amount on your hand, rub it into your hair after you get out of the shower, and it doesn't leave it feeling greasy or with residue. I can "feel" hair product residue with most mousses, etc so this is a plus. It calms my hair down so it doesn't frizz, which I never had a problem with until I got old. LOL
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Reviewed in the United States on October 27, 2025 by Avid Reader