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Nº.9 Bond Protector Nourishing Hair Serum
Nº.9 Bond Protector Nourishing Hair Serum — image 1Nº.9 Bond Protector Nourishing Hair Serum — image 2Nº.9 Bond Protector Nourishing Hair Serum — image 3Nº.9 Bond Protector Nourishing Hair Serum — image 4
Olaplex

Nº.9 Bond Protector Nourishing Hair Serum

4.4 out of 5 · 18 reviews
$32.00
● In stock
  • Shields hair from pollution for 48 hours
  • Improves style retention and reduces tangles
  • Provides 450°F heat protection and satin shine
Free US shipping on orders over $75.00; otherwise $5.99 · 30-day returns · Sold by Cartivo (demo store — payments are simulated)

About this item

Key benefits • Improves style retention and reduces tangles and static. • Protects color and provides satin shine. • 450ºF/232ºC heat protection and 48-hour pollution protection. Details This ultra-lightweight, heat-protective hair styling serum creates a satin shine and lasting style retention while reducing tangles and static. Plus, it provides immediate pollution protection. Pollutants can bind to hair and cause free radical damage that affects the appearance of hair health. No.9 shields hair from pollutants for up to 48 hours. Clinically proven • Instantly shields hair from pollution • 48 Hr OLAPLEX Pollution Protection Index Ingredients • PVP: a flexible polymer that helps maintain hair style and shape. • Cetrimonium Chloride: conditions, smoothes, softens, and has an anti-static effect. How to • Apply a small amount to clean, damp hair working upward from ends to roots. Use more as needed for longer, thicker hair. • Style as usual. Air-dry for a soft texture. Blow-dry for a smooth finish. Diffuse for defined waves or curls.

Specifications

Size3 fl oz (90 ml)
BenefitsImproves style retention; reduces tangles/static; protects color
FormulationUltra-lightweight nourishing hair serum
Cruelty-FreeYes
Hair ConcernTangles, static, pollution damage, lack of style retention
Heat ProtectionYes, up to 450°F/232°C
Key IngredientsPVP

Customer reviews (18)

What customers say: Makes hair soft, shiny, and tangle-free, with improved heat protection and style retention. Can be sticky or weigh down fine hair if too much is applied.
★★★★★

Excellent product

Christina W. · 2026-01-23 · Verified purchase

This serum is truly fantastic. It detangles my hair instantly and gives it such a beautiful, healthy shine. My style lasts much longer too.

★★★★★

Smooth, protected hair

Kendra M. · 2026-07-24 · Verified purchase

I've noticed a significant reduction in static and tangles since incorporating this into my routine. My hair feels incredibly soft and looks so much healthier with a beautiful satin shine. The heat protection gives me peace of mind when using hot tools, knowing my hair is shielded.

★★★☆☆

A little sticky

Alex S. · 2026-03-20 · Verified purchase

This serum helps with heat protection and my hair did feel a bit softer after using it. However, if I use even a little too much, it leaves a slightly sticky residue that I don't care for. I have to be really careful with the amount.

★★★★★

New staple

Brooke G. · 2025-08-28 · Verified purchase

This product is amazing. My hair has never felt so soft and looked so shiny. It's truly transformed my hair, making it less tangled and easier to style.

★★★★★

Great for styling

Colin G. · 2026-07-27 · Verified purchase

This is a lifesaver for my thick hair. It reduces frizz and helps my hair stay styled throughout the day.