• Nourishing hair serum
  • 3 oz size
  • Olaplex haircare
  • Bond-protector formula

What it is

A nourishing hair serum from Olaplex, the haircare brand behind bond-building treatments, supplied through Nava Beauty. No. 9 is their bond-protector serum, in 3 oz.

What it does

A leave-in serum made to nourish hair and protect it through styling.

Who it's for

Anyone who wants a leave-in treatment from Olaplex's bond line.

How to use

How much: A small amount.

1. Apply a small amount to damp or dry hair.
2. Work through mid-lengths and ends.
3. Style as usual.

Where it fits: On damp or dry hair, before or after styling.

Why we stock it

We stock this because Nava Beauty supplies it as part of their third-party brand catalog.

The Nexus standard

Vetted before it lists

Every brand on our shelf is screened before it can sell here. Fewer than you'd think make it through.

Direct from the maker

We work directly with independent brands and skip the retail markup, so you pay less for the same products.

30-day returns

Changed your mind? Returns are easy within 30 days on unopened products. Secure checkout, always.

About the brand

Nava Beauty

Luxury beauty, personally picked for you

Nava Beauty is a luxury specialty retailer, not a product brand: a boutique in Great Neck, New York run by a founder with decades of experience in fashion and beauty. They sell brand-authorized, genuine products from names like Olaplex, Nutrafol, EltaMD, and Augustinus Bader, and have served their community online and in store for over ten years.

We stock Nava Beauty's finds because they carry hard-to-find professional brands like Nutrafol and Olaplex at real discounts, all brand-authorized and genuine.

Hair questions, answered

How often should I use this?

Most hair products are two-to-three-times-a-week things, not daily — unless it's a leave-in. Your hair type matters more than the label: fine hair needs less product, thick or coily hair needs more moisture.

Will this work for my hair type?

Check the highlights and description above for guidance. When in doubt, start with a small amount — you can always add more.

Can I use this with my other products?

Usually, yes. Apply styling products lightest to heaviest, and avoid layering two heavy oils or butters unless your hair drinks them up.