Why Everyone Is Talking About Kérastase Hair Oil (And How to Use It Like a Pro)

Posted by Stephanie Lund on February 16, 2026
Kérastase Elixir Ultime Hair Oil at Gene Juarez

The Hair Oil Everyone's Searching For

If you've been searching hair oil lately, chances are you've seen Kérastase Elixir Ultime Hair Oil everywhere. It's one of those rare products that feels instantly luxurious, but also earns its spot in your routine because it actually performs.

At Gene Juarez, we carry Kérastase because our stylists rely on it behind the chair, and our guests love how it elevates everyday hair at home. Here's what to know about Elixir Ultime, and how to use it the way our pros do.

What Is Kérastase Elixir Ultime Hair Oil?

Elixir Ultime Hair Oil is a multi-benefit finishing and treatment oil designed to make hair look shinier, feel softer, and style more smoothly — without the heavy, greasy finish that turns people off of hair oil.

It's especially loved for its ability to:

  • Add glossy shine
  • Help smooth frizz and flyaways
  • Support heat styling (think blowouts + hot tools)
  • Improve softness and manageability
  • Make hair look more polished between washes

Kérastase Hair Oil at Gene Juarez

How to Use Elixir Ultime Hair Oil

The most common question we hear is simple: how do I use hair oil? Here are three stylist-approved ways to use Elixir Ultime depending on your goal.

1) Use It on Damp Hair Before Styling

This is our go-to method for smoother blowouts and a softer finish.

  • Start with 1 pump (fine hair) or 1–2 pumps (medium/thick hair)
  • Warm it between your hands
  • Apply from mid-lengths to ends
  • Comb through if needed, then blow dry as usual

2) Use It on Dry Hair as a Finisher

Perfect for shine, flyaways, and making your style look "done."

  • Use ½ pump to 1 pump (you can always add more)
  • Focus on ends first, then lightly skim over the surface
  • Avoid the root area to keep hair looking airy and fresh

3) Use It as an Overnight Softening Treatment

If your hair is feeling dry, brittle, or overworked from heat or color, this is a simple upgrade.

  • Apply a slightly more generous amount than usual to mid-lengths and ends
  • Twist hair into a loose bun or braid
  • Shampoo and condition in the morning

How Much Hair Oil Should You Use?

The secret to loving hair oil is using the right amount. Start small.

  • Fine hair: ½–1 pump
  • Medium hair: 1–2 pumps
  • Thick/coarse hair: 2–3 pumps

Pro tip from our stylists: apply to mid-lengths and ends first. If you have extra on your hands, then (and only then) lightly smooth over flyaways.

Is Hair Oil Good for All Hair Types?

Yes. It's more about choosing a quality formula and applying it correctly. Elixir Ultime is a favorite because it enhances shine and softness without weighing hair down when used in the right amount.

We especially recommend it if you:

  • Heat style regularly
  • Have color-treated or highlighted hair
  • Deal with dryness, frizz, or dullness
  • Want your hair to look polished between appointments

Shop Elixir Ultime at Gene Juarez

We carry Kérastase Elixir Ultime Hair Oil at Gene Juarez, and we're happy to help you choose the right way to use it for your hair type and routine. Ask your stylist at your next visit — we'll show you exactly how much to use and when to apply it for your best results.

Ready for your most luminous hair?

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About Gene Juarez Salons & Spas
For 50 years, Gene Juarez has been the Pacific Northwest's destination for exceptional hair, skin, and beauty services. With locations across Washington State, our team combines artistry with technical excellence — and the professional products to match.

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