Free shipping on all orders $75+*

Shopping Bag

Your bag is empty... SHOP
Subtotal

20% Off Sitewide SALE

Fall in love with the best version of your hair.

No code needed. Limited time only!
Cannot be combined with any other offers.

The First At-Home Keratin Treatment

Smooth, shiny, healthy hair for up to 6 weeks.

Yes, you read that right!

DIY Frizz-Free Fabulousness For All

Nourish & strengthen any hair type, texture or tone.

Everyone’s welcome.

Delivers smooth, glossy, moisturized hair
Helps to repair dry & damaged strands
Cuts blow dry time by up to 30%
Results last for up to 6 weeks

Say hello to your hair’s new BFF

Gussi here, an innovative, first-of-its-kind, CLEAN & non-toxic keratin smoothing treatment. Best thing since… uh… ever. Professional salon-quality obtained at home, in only about an hour from start to finish, and oh so easy-to-use. No matter your hair type, texture or tone, transform your hair for up to six weeks with just one treatment. Wear it straight and sleek or flaunt those beautiful shiny curls. NO FRIZZ, NO FUSS.

Color-safe. Made in the USA.

Everyone's Gushing About

Real hair results

Emily N.

"My hair type is wavy/curly but I always struggled with a layer of frizz after blow drying or after letting my hair air dry. After using Gussi, I noticed significantly less frizz after blow drying, making my hair smoother and more manageable during the styling process. My hair is so silky, shiny, and now so much easier to handle day-to-day!"

Marisa M.

"I have thick super long hair (haven't gotten it cut or anything in almost 2 years!) with lots of flyaways, frizz and split ends. One treatment and my hair is smooth and sleek. I love it and can't wait to show it off."

Tina A.

"LOVING Gussi so far! Smell is not bad at all, I am used to other Keratin smells and this one is not powerful at all. All around happy I came across Gussi! Will recommend to family and friends!"

BEFORE
AFTER
LATER
BEFORE
AFTER
LATER
BEFORE
AFTER
LATER

Clean, safe & cruelty-free

We wanted Gussi to have standards as high as yours. So we swapped out formaldehyde and other harmful chemicals which are common ingredients in smoothing treatments that can be extremely dangerous for the air you breathe and even your skin. We’re proud to keep it clean and cruelty-free with no animal testing, ever.

Formaldehyde-free
Phthalate-free
Paraben-free
PETA & Leaping Bunny certified cruelty-free
MORE ABOUT OUR INGREDIENTS

SMOOTH IT YOUR WAY

Easy to use & works for everyone

What’s better than a great hair day? Up to 42 of them. Get smoother, shinier and healthier hair that lasts and lasts, with just one treatment.

Only about an hour

start to finish

Color-safe. #gussiUP

before your dye job

No waiting time to

wash or style hair

Doesn’t change hair

structure so won’t

ruin curls