Loren Rosko's #1 Pick
Good Behavior is Like Keratin in a Can
Our heat-activated blowout spray is the secret behind Loren’s signature smooth, shiny hair. It mimics the high-shine, frizz-free results of a keratin treatment for gorgeous hair all day long.
1500+ REVIEWS
Why Loren Loves It:
It looks like a salon keratin treatment
24-hour frizz control
450°F heat protection
The non-greasy formula doesn’t weigh hair down
ALSO LOVED BY
Tame your frizz and flyaways with 24-hour humidity protection
Innovative bonding polymers mimic the frizz-free coating of a keratin treatment, keeping your hair smooth for 24 hours.
Designed to smooth all hair types and textures
Our formula is safe for all hair types, including colored and chemically treated. Whether you have wavy hair or curls and coils, Good Behavior leaves every strand sleek as ever.
Designed to smooth all hair types and textures
Our formula is safe for all hair types, including colored and chemically treated. Whether you have wavy hair or curls and coils, Good Behavior leaves every strand sleek as ever.
Hair that smells just as amazing as it looks
Good Behavior’s signature NYC scent profile features notes of blackberry, teakwood, and suede accord for a chic, earthy, and delicately sweet scent you’ll love.
Frizz Control
Heat Protection
UV Defense
High-Shine
Vegan
Safe for All Hair Types
Loren isn’t the only one who loves it:
1500+ customers agree Good Behavior fights
frizz like a pro
LOVE LOVE LOVE IT
"Good behavior keeps my hair smooth and frizz-free in humid conditions. Love this product so much, I purchased 10 more!!"
–TONI L.
IGK is the best!
I love this smoothing spray. It is amazing! I have naturally frizzy hair, and it really helps smooth my hair!
–KERI C.
Love this!
I have paid $350 twice to have a keratin treatment that only lasts a few weeks. This spray honestly works better! And it smells great!
–DEANNA C.
Works Wonders
It's the best spray out there. It calms the frizz and smells wonderful. I highly recommend.
–LORI T.
(272 reviews)
best seller
GOOD BEHAVIOR SMOOTHING SPRAY
Anti-Frizz + Humidity Protectant
Our heat-activated smoothing spray is literally like keratin in a can. The innovative bonding polymers are essential for ultra-smooth, frizz-free shine that lasts all day.
Smooths and Adds Shine
Glass-Like Finish
Safe for all hair types
24-Hour frizz control
450°F heat protection
Heat-Activated Formula
Register now and earn 28 points
Bundle & Save:
1 Spray
$22.67/Unit
2 Sprays [$30.60/unit]
$20.40/Unit
3 Sprays [$27.20/unit]
25% off • Free Shipping • Skip & cancel anytime
Pay in 4 interest-free installments with ShopPay
WHAT IS GOOD BEHAVIOR?
Good Behavior is our best selling smoothing system for frizz-prone hair. The Spirulina Protein Smoothing Spray gives you the super smooth, high-shine results of a keratin treatment, while doubling as a heat protectant. It’s all thanks to our innovative bonding polymers. Our heat-activated formula is a must-have for blowouts and other heat styles.
HOW TO USE IT
Generously apply to damp hair in sections and comb through.
Blow dry in sections to activate formula.
Style as usual!
Pro-tip: For maximum smoothing, apply again and finish with a flat iron.
Key INGREDIENTS
SPIRULINA PROTEIN: Strengthens and nourishes.
INNOVATIVE BONDING POLYMERS: Mimic the frizz-free, high-shine coating of a keratin treatment when activated by heat.
Perfect For…
Frizz-prone hair
Blowouts
Straightening
All heat styling
Safe for all hair types
Colored or chemically treated hair
Bundle and Save on Loren's Faves
(740 reviews)
Glass Hair Duo
Achieve your smoothest, shiniest blowout ever. Our best-selling smoothing spray mimics the sleek results of a keratin treatment, while Disco Disco gives hair an ultra-glossy finish.
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Glow Getters
If your goal is ultra-shiny hair, this is for you. Start with Expensive, an in-shower treatment for long-lasting shine. Style with Good Behavior for keratin-worthy shine and smoothness. Finish with Disco Disco for the ultimate protective glow.
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(740 reviews)
Smoothing Frizz Fighters
Get your smoothest hair ever with the Smoothing Frizz Fighters.
- GOOD BEHAVIOR 4-1 PREP SPRAY: This multi-tasking hair prep spray is the first step in any hair routine. It gently detangles, controls frizz for up to 24 hours, protects against heat and adds shine.
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GOOD BEHAVIOR SMOOTHING SPRAY: This innovative styling spray mimics the coating and smoothing properties of a keratin treatment when activated by heat.
Add To Cart