OLAPLEX Nº.9 Bond Protector Nourishing Hair Serum - 90ml

heat protectant hair serum | anti-frizz shine | bond protector

Overview

OLAPLEX Nº.9 Bond Protector Nourishing Hair Serum is a leave-in styling serum designed to protect, smooth, and perfect your hair every day. This weightless, silicone-free formula shields strands from heat up to 450°F (232°C) and provides a 48-hour pollution defense, preventing damage before it starts.

Unlike repair treatments that rebuild broken bonds, Nº.9 acts as your daily styling protector—applied after washing, before heat styling or air-drying—to keep hair soft, glossy, and frizz-free. Powered by patented OLAPLEX Bond Building Technology™, it helps maintain the strength and resilience of your hair while enhancing shine and style longevity for every hair type.

What It Does

OLAPLEX Nº.9 is more than a heat protectant — it is your hair’s daily shield against damage. This lightweight serum delivers essential protection and visible results from the very first use:

• Guards hair from heat styling up to 450°F (232°C) to prevent dryness and breakage.
• Creates a 48-hour pollution shield that blocks harmful particles and free radicals before they can dull or weaken the hair.
• Tames frizz, static, and tangles without weighing the hair down — perfect for sleek, defined, or natural styles.
• Boosts shine and softness for a smooth, satin finish with a healthy, touchable feel.
• Enhances style memory and color vibrancy, helping your hairstyle and color look fresh for longer.

Whether you blow-dry, straighten, curl, or air-dry, Nº.9 is the finishing serum that protects and perfects — every time you style.

Key Ingredients

• Bis-Aminopropyl Diglycol Dimaleate — patented bond builder that helps keep hair stronger and more resilient during styling.
• PVP — flexible film former for light hold and humidity resistance without stiffness.
• Sodium Hyaluronate — humectant that draws in moisture for light hydration and elasticity.
• Panthenol (Pro-Vitamin B5) — conditioning agent that smooths, adds shine, and helps reduce split ends.
• Furcellaria and Pelvetia Seaweeds — antioxidant shield that supports a 48h anti-pollution barrier.
• Cetrimonium Chloride — detangling, anti-static agent for easier combing.

Who Is It For?

• All hair types and textures, including color-treated.
• Heat stylers seeking reliable protection and softness.
• Frizz-prone, dull, or tangled hair needing lightweight polish.
• Fine hair that dislikes heavy silicones.

How to Use

A. Standalone Application

Use OLAPLEX Nº.9 as your first styling step after washing and conditioning. It is a leave-in serum — no rinse needed.

1. Towel-dry your hair gently to remove excess water, leaving it damp (not dripping wet).
2. Dispense the right amount:
   • Short or fine hair: 1 drop (pea-sized)
   • Medium-length or normal hair: 2 drops
   • Long or thick hair: 3–4 drops
3. Apply evenly from mid-lengths to ends. Start with your hands, then use a wide-tooth comb or your fingers to distribute the serum evenly — this ensures every strand is coated without build-up near the roots.
4. Style as desired: air-dry for soft definition, blow-dry for a sleek finish, or diffuse curls for frizz-free bounce.

Pro Tip: Add half a drop on dry hair to smooth flyaways and add instant shine. Use before every heat styling session for optimal protection.

B. Within the OLAPLEX System

For best results, use OLAPLEX Nº.9 as part of your regular bond-care and styling routine. It acts as your final leave-in step after cleansing and conditioning, creating a protective barrier before styling.

System Routine

Pro Tip: For the ultimate smoothness and radiant shine, layer 1–2 drops of OLAPLEX No.7 Bonding Oil over Nº.9 on damp or dry hair before heat styling or as a finishing touch.

Results

From the very first use, OLAPLEX Nº.9 Bond Protector Nourishing Serum delivers visibly healthier, shinier, and smoother hair. It works on all hair types — from straight to coily — to improve texture, softness, and manageability with every application.

• Instantly smoother and softer hair with a satin shine finish.
• Up to 48 hours of frizz and static control even in humid environments.
• Improved detangling and style memory for easier, longer-lasting styling results.
• Protected, resilient strands that stay glossy and touchably soft.

Results for Wavy Hair

Results for Coily Hair

Summary

OLAPLEX Nº.9 Bond Protector Nourishing Hair Serum is your essential leave-in styling protector—a weightless, silicone-free serum that shields hair from heat, pollution, and frizz while enhancing softness and shine. Suitable for all hair types, including color-treated and chemically processed hair. Vegan, cruelty-free, and color-safe.

Use Nº.9 as your daily defense before any heat styling or as a finishing serum for healthy, glossy hair that looks and feels protected every day.