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Opalex No. 7 Bonding Oil Review

I Tested Opalex's No. 7 Bonding Oil and My Curls Have Never Been Softer

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Image Source: POPSUGAR Photography / Angela Elias

Learning to care for my curly, frizzy, thirst-quenched hair has been a process, to say the least. After switching to a silk pillowcase, drying my hair with a microfibre towel on wash days, and practicing curly hair styling techniques, I'm deep in the trial and error phase of experimenting with new hair products that smooth, protect, and add shine. After trying a couple of hair oils that either smelled too strong, left my strands feeling greasy, or didn't offer enough frizz control, I've finally found one that ticks all of my boxes. The Opalex No. 7 Bonding Oil (£28) is my new favourite hair product discovery, and I've been using it daily for the last two weeks. I was hoping for an oil that would tame my frizz but I've been blown away by its other benefits.

About the Opalex No. 7 Bonding Oil

  • This styling oil helps to boost shine, reduce frizz, soften, and protect hair from heat and other damage.
  • It can protect hair up to 450°F/232°C.
  • It's weightless, so it nourishes hair without leaving a greasy residue.
  • It can be used for all hair types and textures.

What I Like About the Opalex No. 7 Bonding Oil

After I apply this oil, my hair immediately absorbs it. I can layer on as much as I need to without worrying about it weighing down my layers. I love that I can add it to my hair when it's damp for heat protection and then work it through the ends and the layers around my face once it's dry. The buildable formula is easy to use without worrying about overdoing it, so I usually apply a little every day in between washes. I'm still surprised by how soft my curls feel after applying it. Its star ingredient, Bis-aminopropyl Diglycol Dimaleate, is part of Opalex's patented Bond Building Technology™ that repairs damage by relinking broken bonds. I'm used to running my fingers through my dry split ends, but the bonding oil really helps to smooth and hydrate my usually coarse, dry hair. Since I'm sensitive to fragrances, I appreciate that this hair oil has a light, pleasant smell that isn't detectable once it's applied.

Before using Opalex No. 7 Bonding Oil:

Image Source: POPSUGAR Photography / Angela Elias

After using Opalex No. 7 Bonding Oil:

Image Source: POPSUGAR Photography / Angela Elias

How to Use the Opalex No. 7 Bonding Oil

The oil comes out very slowly, which I actually appreciate since it's easier to control the amount you pour. To use it, turn the bottle upside down and tap your finger against the bottom of the bottle until you have about two or three drops to work with. Depending on how thick your hair is, you can continue to add more. It can be applied to damp or dry hair before styling with heat and can be used daily after styling for extra shine.

What to Consider Before Buying Opalex No. 7 Bonding Oil

A big thing to note is the size of the bottle. It's only one ounce, which is considerably smaller than some of the other hair oils I've tested. At $30, it's also on the pricier side when you compare the cost for the amount of product you get. That said, a little really does go a long way. I've been using it consistently for a couple of weeks now and I've hardly put a dent in the bottle.

Where Is Opalex No. 7 Bonding Oil Available?

Opalex No. 7 Bonding Oil is available at Amazon, Look Fantastic, and Opalex.


Opalex No. 7 Bonding Oil
Opalex No. 7 Bonding Oil
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