




The first at-home keratin hair treatment! This innovative DIY smoothing solution leaves hair frizz-free for weeks on end, plus shinier, healthier, and more manageable than before. Unlike many in-salon keratin treatments, Gussi ditches the formaldehyde and all other nasty chemicals. Fabulously sleek hair that lasts, all from the comfort of your own bathroom.
For all hair types. Results may vary slightly based on hair texture, coarseness, porosity, and overall hair condition.
Color-safe. For best results, Gussi up prior to coloring hair. You can color your hair immediately after completing the Gussi treatment. If you recently colored your hair, wait at least five washes before applying Gussi's formaldehyde free treatment.
Keep those curls - if you want! Gussi won’t break the bonds of your hair, so your natural texture remains – just with a smoother, more manageable, elongated pattern for the duration of the treatment.You must flat iron hair as the final step to lock in the treatment, but you can then immediately rinse to get those gorg curls back.
Wash 2x with Squeaky Clean Priming Shampoo to clarify and prep your hair. If you have very dry or damaged hair, just 1 wash will do it.
Apply Smooth Operator Keratin Treatment, comb thru and let process for ~20 minutes.
Rinse your hair with water and towel dry.
Blow dry smooth until hair is completely dry.
Flat iron hair in small sections to activate the frizz-fighting power.
Style however you like! Immediately following your DIY keratin treatment, you’re free to wash, color, heat style, curl your hair and even work out – whatever you and your hair desire.
Squeaky Clean Priming Shampoo
73.9ml / 2.5 fl oz
Water (Aqua) (Eau), Aloe Barbadensis Leaf Juice*, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Decyl Glucoside, Caprylyl/Capryl Glucoside, Polyacrylate Crosspolymer-6, Pyrus Malus (Apple) Fruit Extract, Glycerin, Panthenol, Prunus Armeniaca (Apricot) Kernel Oil, Arginine, Serine, Alanine, Glycine, Threonine, Proline, Valine, Histidine, Isoleucine, Phenylalanine, Aspartic Acid, PCA, Sodium PCA, Allantoin, Caprylyl Glycol, Sodium Lactate, Hexylene Glycol, Phytic Acid, Trisodium Ethylenediamine Disuccinate, Phenoxyethanol, Ethylhexylglycerin, Sodium Benzoate, Fragrance (Parfum), Benzyl Salicylate, Hexyl Cinnamal
Smooth Operator Keratin Treatment
73.9ml / 2.5 fl oz
Water (Aqua) (Eau), Glyoxyloyl Keratin Amino Acids, Glyoxyloyl Carbocysteine, Propylene Glycol, Glycerin, Soytrimonium Chloride, Moringa Oleifera Seed Oil*, Niacinamide, Tocopheryl Acetate, Pyridoxine HCl, Calcium Pantothenate, Sodium Ascorbyl Phosphate, PEG-40 Hydrogenated Castor Oil, Guar Hydroxypropyltrimonium Chloride, Silicone Quaternium-16, Undeceth-5, Undeceth-11, Cetrimonium Chloride, Coceth-7, PPG-1-PEG-9 Lauryl Glycol Ether, Silica, Maltodextrin, Sodium Starch Octenylsuccinate, Butyloctanol, PEG-12 Dimethicone, Phenoxyethanol, Iodopropynyl Butylcarbamate, Fragrance (Parfum), Hexyl Cinnamal
* Certified organic ingredient/Ingrédient certifié biologique
Made in USA of global materials
Grab the Gussi Bundle
for your complete smoothing routine!
Kit + Upkeep Daily Care
$15 OFF + FREE SHIPPING



Add Mane Squeeze™ for all your straightening, smoothing & styling needs!
No nasties,
only the good stuff
At Gussi, we are equally committed to great hair and great health. Yes, we deliver shiny, smooth, frizz-free hair. Does it mean you need to be exposed to nasty chemicals found in pretty much every smoothing product out there? Hard pass.
We offer non-toxic keratin treatment products developed with your safety in mind. Better for your hair, better for the environment, better for everyone.
How to #gussiUP
Get that playlist ready and get ready for some seriously smooth self-care. FIVE EASY STEPS, in about an hour from start to finish, for up to six weeks of shiny, silky, healthy hair. Once you’ve gussied up, might we suggest sharing a few selfies?