US
Olaplex

Olaplex No.7 Bonding Hair Oil

  • Hair Type: All, Damaged
  • Scent Name: Unscented
  • Item Volume: 1 fl oz
  • Liquid Volume: 1 fl oz

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A premium bonding oil worth it mainly for damaged or heavily styled hair chasing both shine and reported breakage reduction, less essential for healthy hair that just needs a shine step.

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ASIN: B07VR1NDSQCategory: Hair Treatment Oils

Overview

Olaplex No.7 is a concentrated bonding hair oil applied in just 2 to 3 drops, built around a coconut-derived emollient, Vitamin E and sunflower seed oil. It carries a stated 450F/232C heat protection rating alongside frizz-control and breakage-reduction claims tied to the brand's bond-focused line.

Unlike a straightforward finishing oil, Olaplex frames No.7 as a bonding product, tying it to the same strand-repair positioning as the rest of its numbered lineup rather than treating it as a pure shine step. The brand cites its own testing for the shine, frizz control and breakage figures, comparing treated hair against bleached, untreated hair rather than a general population, which is worth keeping in mind when reading the percentages. Because the dose is only 2 to 3 drops, a bottle can last through many applications despite the premium price point.

  • 450F/232C heat protection
  • 2-3 drop concentrated dose
  • Coconut-derived emollient, Vitamin E, sunflower seed oil
  • Positioned within Olaplex's bonding lineup

Who it's for

Suits anyone already using Olaplex's bonding system or dealing with damaged, color-treated or heat-styled hair who wants a finishing oil that claims strengthening as well as shine. Less necessary for hair that is not chemically or heat damaged, where a simpler shine oil would do the same cosmetic job for less money.

Pros and cons

Pros
  • Heat protection to 450F/232C
  • Low 2-3 drop dose stretches the bottle
  • Positioned within Olaplex's bonding system for damaged hair
  • Vitamin E and sunflower seed oil in the formula
Cons
  • Breakage and shine figures are the brand's own comparison against bleached hair, not an independent test
  • Premium price relative to other oils in this set
  • No independent review data available for this listing

Performance notes

A small dose is worked through hair to add shine and control frizz while providing heat protection up to 450F/232C. Olaplex's cited testing, run against bleached, untreated hair, reports 125 percent more shine, 72 hour frizz and humidity control, and a 77 percent reduction in breakage, figures that describe the brand's own comparison rather than an independent study.

Specifications

BrandOlaplex
Dimensions & fit
Item Weight0.07 pounds
Capacity & performance
Item Volume1 fl oz
Liquid Volume1 fl oz
Construction & materials
Material Type FreeParaben Free, Phthalate Free, Sulfate Free
Included components
Unit Count1 fl oz
Other details
Hair TypeAll, Damaged
Scent NameUnscented
Number Of Items1
Item FormOil
Product BenefitsInstantly boosts shine, color vibrancy, & softness. Tames frizz and flyaways. Provide 450ºF/232ºC heat protection.

Frequently asked questions

How much Olaplex No.7 Bonding Oil should be used per application?

The brand recommends just 2 to 3 drops per use since the formula is concentrated.

Does Olaplex No.7 reduce hair breakage?

Olaplex reports a 77 percent reduction in breakage in its own testing against bleached, untreated hair.

What heat protection does Olaplex No.7 offer?

It carries a stated heat protection rating up to 450F/232C.