Editor's TipEditor's Tip

Pair this leave-in treatment with Kérastase Capital Force Energetique or Kérastase Densifying Shampoo for the best results.

Birchbox Breakdown

There comes a time in every man’s life when his once-glorious mane begins to look, well, kind of sparse. No matter—it’s about making the most of what you’ve got and using the right kind of products. On the latter front, we’re fans of this professional-grade treatment, which thickens hair and keeps it healthier over time. The high-tech formula is designed to strengthen existing hair follicles and protect them against the enzymes that cause hair loss.

How it Works

The leave-in spray uses biotin to fortify follicles and amino acides taurine and arginine to slow down hair loss. It’s also packed with ceramides, lipids that keep strands smooth and shiny.

How to Use

After shampooing, spritz onto towel dried hair. Work the product into your scalp. Do not rinse.

More for You!
  • Product orders $50+ and all monthly box brands ship free
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Men's Bonus Shop

Product Reviews & Sample Feedback

4.5 out of 5 stars, based on 2 reviews 2 Reviews
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Most Helpful Customer Reviews


Love this stuff. Works as it says, and smells great too. Wonderful, now I have to spend $75 on spray and shampoo.

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Really really good

Loved this stuff. I don't usually shell out more than $10 for a bottle of shampoo, but that's about to change.

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