Amika Blockade Heat Defense Serum 1.7oz

A lightweight heat-protecting serum that shields hair during blow-drying and thermal styling while smoothing strands and adding shine.

Amika Blockade Heat Defense Serum creates a lightweight protective barrier between your hair and your favorite hot tools. Designed for use before blow-drying, curling or straightening, the silky serum helps seal the hair against moisture loss caused by thermal styling without weighing it down.

The formula features cyclopentasiloxane as its primary heat-protective agent along with Amika's signature sea buckthorn seed oil. Use it on damp hair before styling for protection and smoothness, or apply a small amount to dry ends as a finishing serum.

It's also safe for color-treated, Brazilian-treated and keratin-treated hair and is vegan and cruelty-free.

Professional salon product trusted in Bombshell locations daily.

Best For —
All hair types that regularly encounter blow-dryers, flat irons, curling irons or other thermal styling tools, especially hair prone to dryness, frizz or heat-related damage.

What You'll Love —
— Protects hair during thermal styling and blow-drying
— Lightweight serum helps seal against moisture loss without heaviness
— Smooths hair and adds a polished, glossy finish

How to Use —
For heat styling, distribute 2–3 pumps throughout damp hair, then blow-dry or heat style as desired. To finish your style, distribute 1–2 pumps through dry hair, concentrating primarily on the ends.

Pairs Well With —
Amika The Kure Bond Repair Shampoo
Amika The Kure Bond Repair Conditioner
Amika The Wizard Detangling Primer

FAQ

What does Amika Blockade Heat Defense Serum do?
It's primarily a heat protectant designed to protect hair during blow-drying and thermal styling while helping prevent moisture loss. Amika distinguishes Blockade from finishing oils because thermal protection is its primary purpose.

Can I use Blockade on dry hair?
Yes. While it can be applied to damp hair before heat styling, Amika also recommends using 1–2 pumps on dry hair, focusing on the ends, as a finishing serum.