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No. 9 BOND PROTECTOR by Olaplex . Hair nourishing serum.
Created by patented OLAPLEX® bond-building technology.
It is a multi-benefit healthy hair nourishing serum, created with patented OLAPLEX® technology. OLAPLEX® No.9 BOND PROTECTOR NOURISHING HAIR SERUM is a silicone-free, ultra-light serum, created with red algae extract, rich in antioxidants that improves any hair routine to protect and improve all hair types.
BECAUSE YOU NEED IT: Pollution damages our hair daily, leaving it dull, lifeless, difficult to comb and ultimately brittle. No.9 is made with antioxidants to neutralize free radicals, act as a shield against pollution protecting you from breakage and the heat of styling processes.
HOW IT'S DIFFERENT: No.9 is characterized by its multi-beneficial power, instantly offering visible benefits while protecting the hair. It is also a thermal protector up to 232ºC.
Satin shine & soft touch. Anti-static & frizz control. Detangles & speeds up blow drying time. Recovery memory. Maintains the definition of curls and waves.
Recommendations:
Apply exclusively to damp hair. It can be used as a cocktail with the size of a almond of Nº6 and 3-5 drops of N.7 to maximize protection.
The serum, applied to the ends of the hair, protects them from the temperature of the hairdryer, the hair is very soft and silky, even my hairdresser noticed the difference, excellent price for a high quality brand
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: Italia
Has been using this product for: Not specified
Hair type:
Dry, Dyed hair
SILVANA recommends this product
SILVANA
Verified purchase
12/01/2026
Sound protection
The serum, applied to the ends of the hair, protects them from the temperature of the hairdryer, the hair is very soft and silky, even my hairdresser noticed the difference, excellent price for a high quality brand
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: Italia
Has been using this product for: Not specified
Hair type:
Dry, Dyed hair
SILVANA recommends this product
Isabel
Verified purchase
17/07/2025
Well
I’ve used it for a while and especially because of the protective effect for the hairdryer, I thought it gave more shine
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: España
Has been using this product for: Between 6 months and 1 year
Hair type:
Oily
Isabel recommends this product
sabrine
Verified purchase
03/07/2024
top
Excellent product, for me it is the best olaplex product
Translated by Google
Gender: Woman
Age: ---
Country: France
Has been using this product for: Between 1 and 3 years
What benefits does Olaplex No. 9 Bond Protective Hair Serum offer?
Translated by Google
-10/06/2026
It is the protective, repairing and perfecting serum for the external hair microarchitecture that guarantees: • Total mechanical protection against environmental pollution for 48 hours and thermal shielding up to 232°C. • Drastic reduction of stubborn frizz, providing a hairstyle memory effect and extreme manageability. • Hair that is visibly softer to the touch, elastic, with a satin mirror shine and natural looseness without weighing it down.
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What is the recommended application guideline after mechanical washing?
Translated by Google
-05/05/2026
A small amount of the light serum is dispensed onto the palms of the hands and distributed evenly over damp hair, working thoroughly from ends to roots before proceeding to thermal styling or free drying.
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For what environmental protection needs and hair conditions is it prescribed?
Translated by Google
-19/02/2026
It is meticulously developed for all types of hair exposed to daily pollution, mechanical heat tools and chemical aggressions, making it ideal for dull hair prone to frizz or breakage.
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How does Olaplex Bond Protect No. 9 hair serum work on hair?
Translated by Google
-12/12/2025
It is a high-performance, leave-in cosmetic hair shield enhanced with patented bond-multiplying technology, which acts mechanically and biologically to create an invisible barrier to repair broken disulfide bonds and block free radicals.
Vegan. Products are products that do not contain ingredients derived from animal origin, whether in their manufacturing process or in their formulation. These include, for example, collagen, retinol, urea, carminic acid, biotin and honey, among others, frequently used in cosmetics.
Cruelty free. We include brands that do not test their products or ingredients on animals and are committed to research alternatives that do not involve animal cruelty. We only choose brands that are officially certified by international organisations including PETA, Leaping Bunny and CCF.
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