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FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

FREE SHIPPING ON ALL ORDERS $50 +

Smooth & Glossy

Glass-Hair Smooth, No Frizz

Good Behavior Smoothing Spray

1818 Reviews

Heat-activated smoothing with 4-day frizz control

This heat-activated styler mimics the smooth, high-shine results of a keratin treatment with 4-day frizz control and 450°F heat protection. Spray on damp or dry hair and apply heat for a sleek, glassy finish. 
$38.00

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Why You'll Love It

The Benefits

The Overnight Breakthrough

What It Is

The Overnight Breakthrough

A heat-activated smoothing blowout spray that mimics the frizz-free, high-shine results of a keratin treatment. Provides a sleek, glass hair finish and protects against humidity and UV damage with 24-hour frizz control and 450°F heat protection.
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Who It's Best For

Made For You

Who It's Best For

  • Straight
  • Wavy
  • Curly
  • Coiled
  • Tightly Coiled
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How to Use

How to Use

  1. Generously apply to damp hair in sections and comb through.
  2. Blow dry in sections to activate formula.
  3. Style as usual or apply again and finish with a flat iron for maximum smoothing.

What's Inside

Key Ingredients

  • Spirulina ProteinStrengthens and nourishes.
  • Innovative Bonding PolymersMimic the frizz-free, high-shine coating of a keratin treatment when activated by heat.
Key Ingredients

Why It Beats Your Old Routine

Good Behavior Keratin Treatment Frizz Serums
4-day frizz control
450°F heat protection
No salon visit
No formaldehyde
Glassy, high-shine finish
Lightweight, no buildup
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Try It Risk-Free

Love your hair in 30 days or your money back — keep the free gift either way.

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Frequently Asked Questions

How long does the frizz control last?
Up to 4 days of frizz control, even through humidity.
Do I need to use heat?
For best results yes — it is heat-activated. Spray on damp or dry hair and blow-dry and/or flat-iron to lock in smoothness. It also offers 450°F heat protection.
Is this like a keratin treatment?
It mimics the smooth, high-shine, glassy finish of a keratin treatment — without the salon visit or formaldehyde.
Will it work on curly hair?
Yes. It smooths frizz on curly, wavy and straight hair depending on how you style it.
Is it vegan and cruelty-free?
Yes — it is vegan, cruelty-free, and powered by spirulina protein.

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Good Behavior Smoothing Spray

$38.00