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"Use this daily and it's amazing! Highly recommend!"
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Achieve sleek, glass-like hair with this high-shine finishing serum that delivers 4-day frizz control and boosts shine by 75%. Powerhouse formula smooths, provides UV protection and tames flyaways even in high humidity. Finish any style like a pro with this concentrated serum for sleek, shiny hair that lasts.
Seals and locks out humidity
75% shinier hair
How to use
Apply to dry, styled hair from mid-lengths to ends.
Smooth lightly along the hairline and part to tame flyaways.
Pro Tips: Warm serum in the palms before applying for even distribution.
what it is
4-day frizz control
Seals and locks out humidity
75% shinier hair
who it’s for
Safe For All Hair Types Including Colored And Chemically Treated.
KEY INGREDIENTS
Ground shipping is free on orders $50+ in the continental United States. Currently, our website only accommodates shipments within the contiguous United States: we do not ship to Alaska, Hawaii, and the U.S. Virgin Islands. We work with various shipping carriers and we kindly ask that you anticipate 3 to 8 business days for shipping. For international shipping requests please email [email protected].
IGK Hair offers free returns* and/or exchanges for IGK Hair products within 30 days of product receipt for item(s) purchased on igkhair.com. Products purchased from our salon and retail partners should be returned to the original place of purchase. Please note that returned merchandise must be unopened or gently used. Shipping fees are non-refundable. To start your return or exchange visit our Returns Center. You'll need the order number and email address associated with your purchase, or your shipping zip code. Please note if there is a price difference to be paid in an exchange an invoice is emailed. The invoice must be paid before the exchange order is released. If you have used Afterpay as a payment method, please be aware that the processing times may be longer.
If you have any further questions, please contact our client services at [email protected] with your order number mentioned in the subject line.
*exclusions apply to our free return policy
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Overall rating: 4.732143 / 5 from 56 reviews.
Good Behavior Supreme Seal Smoothing Serum offers sleek, shiny hair with 4-day frizz control and 75% shine boost. Customers appreciate its cute bottle, fresh scent, and effectiveness in taming frizz and flyaways.
Review topics: ["feel","value","packaging","smells","bottle","hair","oil","works","serum","frizz","pump","igk","shine"].
"Use this daily and it's amazing! Highly recommend!"
"I had tried so many anti fizz serums that always left my hair looking greasy, until I came across this stuff! Cry baby was the original name and I've gotten so many compliments and people asking what I use on my hair and it's this! Love this stuff!"
"The items that I’ve purchased from your company have been exceptional and I find now that I am using them quite frequently and they always perform perfectly. Thank you."
"Works for well for my daughter’s mixed hair"
"Love this oil that does not leave your hair oily"
"Only tryed once and amazing"
"Down here in FL 100% humidy. Seems to keep my hair in check."
"It stinks! Just like the other good behavior products It replaced the cry baby smoothing serum for us gals with a sensitive nose the smoothing serum was a light to no fragrance AND it disappeared into the hair not stayed on the hands bad call IGK lost a Cosmetologist customer :woman-facepalming:some things should NOT be replaced looking for a new company now"
"This product it great after blow drying especially when curling and using the wave tool. Calms on my little hairs down and make my hair smooth and smells extra good. This is the best smoothing serum EVER!"
"Definitely puts the shine and smoothness in my hair! I love it! It can be a bit heavy so I only use half a pump but I love it!"