Join in the Gussi Club to ensure you always stay super smooth:

At-Home Keratin Treatment Kit

Shopping Bag

Your bag is empty... SHOP

Add $75 to your cart to receive free shipping!

You are only $75 away from free shipping!

Congratulations, you've got free shipping 👌

Shipping $8.99
Estimated Total $8.99
*Tax calculated at checkout
At-Home Keratin Treatment Kit - Gussi
At-Home Keratin Treatment Kit - Gussi
At-Home Keratin Treatment Kit - Gussi
At-Home Keratin Treatment Kit - Gussi
At-Home Keratin Treatment Kit - Gussi

At-Home Keratin Treatment Kit

Say hello to major hair goals with shiny, frizz-free hair for up to six weeks, from just one treatment! Easy, at-home, and done in about an hour from start to finish.

  • Smooth frizz
  • Nourish & moisturize
  • Help to strengthen & prevent breakage
  • Improve the appearance of split ends
  • Reveal silky, reflective shine
  • Cut blow-dry time by up to 30%


No available purchase options for this selection.

Delivery Every
Have hair that’s shoulder-length or shorter? We’ve got a plan just for that. Subscribe and we’ll send the Gussi At-Home Keratin Treatment Kit, which contains Squeaky Clean Priming Shampoo and Smooth Operator Keratin Treatment right to your door when you’re due for another application.
Regular price
Sale price
Regular price
Sold out
Unit price

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.

How To Use
  1. 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.

  2. Apply Smooth Operator Keratin Treatment, comb thru and let process for ~20 minutes.

  3. Rinse your hair with water and towel dry.

  4. Blow dry smooth until hair is completely dry.

  5. 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


At-Home Keratin Treatment Kit
Protection Plan™ Upkeep Shampoo
Protection Plan™ Upkeep Conditioner

Add Mane Squeeze™ for all your straightening, smoothing & styling needs!

1" Titanium & Ceramic Flat Iron



Customer Reviews

Based on 448 reviews
Lauren Noble
Didn’t work for me

My hair normally takes well to keratin / Brazilian blow dry treatments and I was excited to try this given the lower price point. I followed the instructions closely (left the product in a little longer based on other reviews I saw) and my hair was definitely less frizzy when it air dried after the first wash. Sadly wash two saw my hair right back to it’s frizzy poofy self. Would not recommend

Hi Lauren,

Sorry to hear about your post-wash disappointment. Sounds like an application error. The results may vary according to a number of factors, like the type of hair you have, texture, coarseness, the hairs’ ability to absorb moisture, and the overall health and condition of the hair. A member of our customer support team will be in touch asap to help make this right for you.

Elina Galperin
Made a lot of hair fall out

I like the smoothing effect but I am having so much hair fall out that its not worth it.

Hi Elina,

There is nothing in the formula to cause the hair to break off. We suggest you consult your physician regarding these concerns. Our customer support team is reaching out directly to help.

Shanda Welch
At home keratin treatment stinks

The application process was easy. There were no harsh chemical smells but I did have a little burning. The day following the treatment, I exercised and my hair was a little sweaty and a LOT stinky! I kept smelling this awful smell at the gym and later realized it was my hair! My husband confirmed; he said it smelled like a pizza shop, like Parmesan cheese! Yuck! I just washed and conditioned my hair three times with my strongest smelling products and my hair still stinks! I won’t be using it again.

Hi Shanda,
We're so sorry to hear about your experience. Unfortunately, sometimes an odor from the natural keratin can linger if too much product is left in the hair during the rinse step. It shouldn't be there when your hair is dry. Our customer support team is reaching out directly to help.

Not sure why it didn’t work

So I literally followed the instructions to the tee, my hair looked nice at the end, lasted a few days even after the gym and all, but then came was day and my hair was so poofy and frizzy ☹️ so it didn’t work on me.

Sorry to hear that! Please reach out to our team at as we'd love to make this right for you and improve your Gussi experience!

Great At Home Keratin Treatment

I tried a competitor's product first and was very disappointed. But when I tried Gussi I knew that this product was superior. It made my hair very soft and manageable. I can definitely tell that it is helping my hair to stay straight and not get frizzy in the humidity. However, it is not as good as Keratin treatments that I've gotten in salons in the past. I would definitely buy this again if I wasn't able to get to a salon and needed a good frizz-fighting product.

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.

Keratin Amino Acids
  • Add strength & resistance
  • Improve appearance of split ends & surface damage
  • Boost hair cuticle condition
Hydrogenated Castor Oil
  • Imparts reflective shine
  • Smooths hair fiber
  • Seals damaged cuticles
Moringa Oleifera (Moringa) Seed Oil
  • Helps to moisturize
  • Improves manageability
  • Provides nourishment
  • Anti-microbial
Vitamins C, B3, B5, B6, E
  • Antioxidants help to revitalize & protect hair
  • Reduce scalp inflammation
PETA & Leaping Bunny certified cruelty-free

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?

What you’ll need
Hair Clips
Plastic Comb
Blow Dryer
Flat Iron


What is keratin and is keratin good for hair?

Keratin is a protein naturally made in the body that makes up your hair, skin, and nails - so yes, keratin is great for your hair! Our formaldehyde free keratin treatment adds an extra powerful dose of non-toxic keratin that will help your hair become softer, smoother, and less prone to frizz. Our At-Home Keratin Treatment works great with all hair types and lasts up to six weeks from just one treatment!

Is keratin good for hair with low porosity, high porosity or normal hair types?

Simple answer, all of the above! Keratin is great for all hair types, however sometimes one’s hair type isn’t able to properly absorb the protein to be able to gain the best results. Our at-home keratin treatment uses hydrolyzed keratin which is a broken down version of the larger protein, allowing for even hair with low porosity to reap the benefits. Hydrolyzed keratin works wonders even if you have damaged hair, since the hydrolyzed keratin would fill in the gaps in the hair strands that have been weakened over time. Gussi is also NOT a chemical straightener or relaxer, so it won’t disturb any of your natural curl patterns. This is just another example of how Gussi has the best keratin treatment kit.

Is it easy to do a keratin treatment at home?

We have made it extremely easy! Salon keratin treatments are often expensive, have a long processing time and use products that do more harm than good. Salon keratin treatments usually involve the use of formaldehyde, which leads to a range of negative side effects on your hair and health as stated by the FDA. This is why we developed the best formaldehyde-free formula so that you can do your keratin treatment at home with peace of mind that you and your hair are in good hands. To complete our powerful frizz-fighting treatment, you only need an hour of your time and some home essentials like a towel, hair clips, plastic comb, brush, blow dryer, and flat iron. It’s five simple steps to six weeks of great hair, all from just one treatment!