Olaplex Nº.9 Bond Protector Nourishing Hair Serum

Dupes for Nº.9 Bond Protector Nourishing Hair Serum by Olaplex

Last updated on May 21, 2025

Welcome to our breakdown of the 6 best Olaplex Nº.9 Bond Protector Nourishing Hair Serum dupes and alternatives.

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If you'd like to see the all of the Olaplex dupes that we've found, check out our best Olaplex dupes guide.

We use hundreds of science-backed factors to find you the best dupes.
Learn more about our dupe methodology

Our Roundup

Here's a quick roundup of our findings. Continue reading for the full breakdown!

The Every Curl & Wave Infusion Booster
Most Similar Ingredients

The Every's Curl & Wave Infusion Booster is the dupe with the most similar ingredients. Our matching methodology puts it at an 45% ingredient match!

Garnier Hair Filler Hyaluronic Moisture Repair Serum
Most Often Compared

Our community frequently compares this product with Garnier's Hair Filler Hyaluronic Moisture Repair Serum. Our matching algorithm puts it at an 61% overall match!

The INKEY List Hyaluronic Acid Hydrating Hair Treatment
Most Liked

Of all of the dupes for this product, The INKEY List's Hyaluronic Acid Hydrating Hair Treatment is the most liked by our community. Our matching algorithm puts it at an 58% overall match!

Overview

What it is

Hair serum with 31 ingredients that contains hyaluronic acid

Cool Features

It is vegan, cruelty-free, fungal acne (malassezia) safe, and reef safe

Suited For

It has ingredients that are good for anti aging, dry skin, sensitive skin and scar healing

Free From

It doesn't contain any harsh alcohols, oils, parabens, silicones or sulfates

Dupe #1

Olaplex Nº.9 Bond Protector Nourishing Hair Serum

65% match

with the ingredients and function of The Every Curl & Wave Infusion Booster

84% Attribute Match
45% Ingredient Match

Dupe Explained

These products are both vegan and cruelty-free hair serums that contain hyaluronic acid. They've got a total of 14 ingredients in common.

They both do not contain any harsh alcohols, oils, parabens, silicones or sulfates. They both contain common allergens and fragrances.

They're both likely to be good for anti aging, dry skin, sensitive skin and scar healing.

Both products are also reef safe.

Price Comparison

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

Dupe #2

Garnier Hair Filler Hyaluronic Moisture Repair Serum

61% match

with the ingredients and function of Olaplex Nº.9 Bond Protector Nourishing Hair Serum

78% Attribute Match
38% Ingredient Match

Dupe Explained

These products are both vegan and cruelty-free hair serums that contain hyaluronic acid. They've got a total of 10 ingredients in common.

They both do not contain any parabens or sulfates. They both contain common allergens and fragrances.

They're both likely to be good for anti aging, dry skin and scar healing.

Both products are also reef safe.

Price Comparison

This dupe is $17.80 less expensive than the original product. Nice find!

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

Dupe #1

Provoke Blonde Rehab N0'4 Smooth & Defrizz Hair Serum

61% match

with the ingredients and function of Olaplex Nº.9 Bond Protector Nourishing Hair Serum

70% Attribute Match
44% Ingredient Match

Dupe Explained

These products are both cruelty-free hair serums that contain hyaluronic acid. They've got a total of 17 ingredients in common.

They both do not contain any oils, parabens, silicones or sulfates. They both contain common allergens and fragrances.

They're both likely to be good for anti aging, dry skin, sensitive skin and scar healing.

Both products are also reef safe.

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

Dupe #2

The INKEY List Hyaluronic Acid Hydrating Hair Treatment

58% match

with the ingredients and function of Olaplex Nº.9 Bond Protector Nourishing Hair Serum

73% Attribute Match
37% Ingredient Match

Dupe Explained

These products are both vegan and cruelty-free hair serums that contain hyaluronic acid. They've got a total of 7 ingredients in common.

They both do not contain any harsh alcohols, parabens, silicones or sulfates. They both contain fragrances.

They're both likely to be good for anti aging, dry skin, sensitive skin and scar healing.

Both products are also reef safe.

Price Comparison

This dupe is $15.00 less expensive than the original product. Nice find!

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

Dupe #5

Waterclouds Bonding Hair Serum

53% match

with the ingredients and function of Olaplex Nº.9 Bond Protector Nourishing Hair Serum

57% Attribute Match
36% Ingredient Match

Dupe Explained

These products are both vegan and cruelty-free hair serums that contain. They've got a total of 13 ingredients in common.

They both do not contain any parabens or sulfates. They both contain common allergens and fragrances.

They're both likely to be good for dry skin, sensitive skin and scar healing.

Both products are also reef safe.

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

Dupe #6

Drybar Liquid Glass High-Gloss Finishing Serum

50% match

with the ingredients and function of Olaplex Nº.9 Bond Protector Nourishing Hair Serum

41% Attribute Match
37% Ingredient Match

Dupe Explained

These products are both cruelty-free hair serums that contain hyaluronic acid. They've got a total of 15 ingredients in common.

They both do not contain any parabens or sulfates. They both contain common allergens and fragrances.

They're both likely to be good for anti aging, dry skin, sensitive skin and scar healing.

Both products are also reef safe.

Price Comparison

This dupe is $2.00 less expensive than the original product. Nice find!

Learn more about this dupe

Looking for a full breakdown of the similarities and differences between these two products?

Check out our full comparison of these two products for all the details!

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