Olaplex No. 9 Bond Protector Nourishing Hair Serum 3 oz is a lightweight, silicone-free leave-in styling serum designed to protect hair from heat, pollution, frizz, tangles, and everyday environmental damage while improving softness, shine, and manageability.
Powered by Olaplex Bond Building Technology, No. 9 helps support weakened hair bonds while creating an invisible protective shield around the hair. The antioxidant-rich formula helps defend strands against environmental pollutants and free radicals that can contribute to dullness, tangling, breakage, and loss of manageability.
Ideal for use before blow-drying, air-drying, or heat styling, this weightless serum provides heat protection up to 450°F / 232°C and helps control static and frizz while improving style memory. It is suitable for all hair types and textures, including color-treated, chemically processed, bleached, dry, and damaged hair.
What It Does
Olaplex No. 9 Bond Protector Nourishing Hair Serum provides a combination of bond-building care, heat protection, environmental defense, and lightweight styling control.
The serum forms a protective barrier around the hair to help shield strands from pollution while providing thermal protection during styling. It also helps detangle hair, reduce static, control frizz, improve curl and wave definition, and enhance healthy-looking shine.
Unlike heavier oils or silicone-based serums, No. 9 has a lightweight consistency designed to provide smoothness and protection without leaving hair feeling excessively coated or weighed down.
Key Benefits
- Lightweight leave-in protective serum
- Provides heat protection up to 450°F / 232°C
- Helps protect hair against environmental pollution
- Provides antioxidant protection
- Helps defend against free-radical damage
- Powered by Olaplex Bond Building Technology
- Helps support weakened and damaged hair
- Controls frizz and flyaways
- Helps reduce static
- Provides instant detangling
- Improves softness and smoothness
- Enhances healthy-looking shine
- Helps improve style memory
- Adds definition to curls and waves
- Excellent for blow-drying
- Can be used before air-drying
- Lightweight, non-greasy feel
- Silicone-free
- Suitable for all hair types and textures
- Safe for color-treated hair
- Suitable for bleached and chemically processed hair
- Vegan
- Cruelty-free
- Leave-in formula – no rinsing required
- 3 fl oz / 90 mL
How to Use
Apply a small amount of Olaplex No. 9 Bond Protector Nourishing Hair Serum to clean, damp hair, working upward from the ends toward the roots.
Use more product as needed for longer, thicker, or more textured hair.
Distribute evenly through the hair, then air-dry or style as desired. When using hot tools, No. 9 provides thermal protection up to 450°F / 232°C.
For curls and waves, apply to damp hair and scrunch or shape the hair to enhance natural definition. For blowouts, distribute evenly before blow-drying to help create a smoother, more polished finish.
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