Olaplex Nr.9 Bond Protector

Lightweight Leave-In Bond Protector & Heat Protectant Serum

Olaplex Nº.9 Bond Protector is an ultra-lightweight, silicone-free leave-in serum that doubles as a styling primer and a heat protectant. The 90ml formula shields hair up to 450°F / 232°C, defends against environmental pollution for 48 hours and reduces tangles and static while preserving colour and adding a satin shine. The patented Olaplex active Bis-Aminopropyl Diglycol Dimaleate works alongside humectants and seaweed extracts to nourish the strand without weighing it down. Free of sulfates, silicones, phthalates, parabens, MIC/MIT and protein; vegan and colour-safe.

Why Choose It?

• Heat protection up to 450°F / 232°C for blow-drying, straightening and curling
• 48-hour protection against environmental pollution with antioxidant support
• Reduces tangles and static and improves style retention without weighing hair down
• Protects colour and adds a satin shine on chemically treated and natural hair
• Silicone-free, sulfate-free, paraben-free, phthalate-free, MIC/MIT-free and protein-free; vegan and colour-safe

Best For

Daily styling on coily, curly, wavy and straight hair, including chemically treated and colour-treated hair, where heat tools, pollution and styling friction need to be controlled in a single lightweight leave-in step. Use before blow-drying, straightening or curling for thermal protection, and on dry hair between washes to tame frizz, static and tangles.

Layer Nº.9 over the wash-day routine that starts with a Olaplex Nº.4 Bond Maintenance Shampoo and a weekly Olaplex Nº.3 Hair Perfector bond-building mask.

• Start with clean, damp or dry hair.
• Dispense a small amount into the palm — increase the dose for longer or thicker hair.
• Rub the serum between the palms to warm and evenly distribute the product.
• Smooth through the lengths from mid-shaft to ends, then work upward toward the roots if needed.
• Style with heat tools as desired — the serum provides thermal protection up to 450°F / 232°C.
• Re-apply on dry hair between washes to refresh shine and control static or frizz.

Tips

• Apply on damp hair before blow-drying for the most even thermal coverage.
• On fine hair, start with a single pump and add only if needed to avoid weighing the lengths down.
• Use the serum daily — it is silicone-free and designed for leave-in styling, not only on wash days.
• Pair with the Olaplex bond-building routine for consistent repair and protection between salon services.

For external use only. Avoid contact with eyes. If contact occurs, rinse thoroughly with water. Keep out of reach of children.