Nº.9 Bond Protector Nourishing Hair Serum

Silicone-free antioxidant serum for heat and pollution protection

✓CGM ApprovedBond BuildingProtein-FreeStep: Leave-In

An out-of-shower styling serum confirmed silicone-free by Olaplex — making it one of the few CGM-approved products in the range. Apply to damp hair before styling to protect against heat up to 230°C, environmental pollutants, and everyday damage. Formulated with red algae extract. Adds softness and manageability without weighing curls down. Pairs well with No.6 for added frizz control, or with No.10 for a fully silicone-free styling routine.

Who is this for?

Our assessment — not the brand's claim

Curl pattern

2A2B2C3A3B3C4A4B4C

Suits 2A through 4C.

Porosity

LowNormalHigh

Suits Low through High.

Free from

✓ Sulphate-Free✓ Silicone-Free✓ Paraben-Free

Ingredients at a glance

FragranceFragrance

Synthetic or natural fragrance blend.

CitralFragrance

Lemon fragrance component.

CitronellolFragrance

Rose-citrus fragrance component.

Hexyl Cinnamic AldehydeFragrance

A synthetic fragrance molecule with a jasmine and lily-of-the-valley character. A listed EU contact allergen that must be declared on-pack above threshold concentrations.

Want to know more? Browse the ingredient glossary →

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Where to buy

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Olaplex

Brand Website

In stock