Gussi is the new way to smooth it your way! We exist to cheerfully enable great hair days for everyone, and we offer a range of innovative hair care products and tools for all hair types, textures, and tones.

Our hero product is our award-winning, cult-status DIY keratin smoothing treatment. It delivers long-lasting results just like you’d get in a salon, only done from the ease of your home and for less time and money. We're specially formulated to make hair shiny, smooth, and frizz-free for up to six weeks, without any nasty chemicals! Gussi is committed to using clean, non-toxic ingredients that help make your hair healthier while also looking flawless. Gussi is 100% formaldehyde-free, paraben-free, phthalate-free, and sulfate-free instead packed with hair-loving ingredients like keratin, moringa seed oil, castor oil, soy protein and vitamins.

We also offer keratin-infused Upkeep Shampoo & Conditioner, plus a variety of hair tools and accessories to help you achieve and flaunt every style you hair - and heart - desire.

Our At-home Keratin Treatment is quick and easy to DIY, with just five simple steps done from the comfort of your own bathroom. The whole treatment can be done from start to finish in about one hour, as opposed to hours in the salon.

Gussi gives you the freedom to wear your hair how you want, whenever you want - all while keeping the healthy shine. Hair can be washed, curled, braided, put up in a ponytail, or kept straight immediately following the treatment. No waiting, no compromising. Gussi is not a permanent straightener, so it won’t cause any damage to your natural curls and texture!

One Gussi treatment delivers amazing hair results for up to six weeks! The time will vary based on your hair type and lifestyle factors such as how often you wash your hair. You can protect your newly flawless hair when using our Protection Plan Upkeep keratin maintenance Shampoo and Conditioner. Both are equipped with powerful ingredients that help to refresh your treatment and keep hair smoother, longer.

The short answer is: nope. With Gussi, you can embrace your natural texture and curls - if you want to! Gussi is NOT a chemical straightening or relaxer treatment. When used as directed, it’s non-toxic and formaldehyde-free, so it won’t break the bonds of your hair and it doesn’t permanently straighten hair. Instead, the Gussi treatment makes hair smoother, easier to manage, and faster to blow-dry. You do need to use a flat iron as the last step of the treatment to ensure you seal in all that powerful keratin-goodness, but then you can immediately rinse to get back your texture. Your curls will return after the first wash feeling softer, stronger, and frizz-free, plus more manageable!

Say it with us now: guh-SEE ;) It’s like that old phrase “to gussy up” ie get yourself looking just fabulous. 

To #gussiUP is all about rocking your look however you want with shiny confidence. It’s about getting instant gratification from the transformative results that our products and tools deliver. It feels like the ultimate expression of getting all dolled up and feeling your absolute best - even if that’s just to chill on your couch for self-care Sunday! It was this feeling we wanted to capture with our next generation At Home Treatment and expanding product range….and we love nothing more than seeing you flaunt it! Make sure to tag us @gussihair on Instagram and @gussi.hair on TikTok with this #gussiUP hashtag so we can see and share YOUR smooth.  

They are indeed! All Gussi products are NON-TOXIC and free of formaldehyde, paraformaldehyde, parabens, phthalates, sulfates, mercury, and methylene glycol. This has been vetted by testing from an independent third-party laboratory. We are NOT a chemical straightening or relaxer product.

Find Or Safety Data Sheets Here

Formaldehyde is a common ingredient in a lot of keratin smoothing treatments used today, but Gussi made the conscious choice to formulate our smoothing treatment without this chemical because, frankly, formaldehydes can be very dangerous, especially in high levels or at frequent exposure. Formaldehyde is a known carcinogen and to that we say, hard pass! 

If there’s formaldehyde in a product, even after it’s rinsed out, harmful toxins can be released into your hair, skin and throughout your home—especially after heat is applied. Worse yet, you can breathe these toxic fumes into your lungs once they’ve been emitted into the air, making this ingredient risky not just for you, but for pets and kiddos, too. Not great, right? 

A lot of countries have already banned formaldehyde in beauty products altogether, and we wanted to stand ahead of the pack here in the U.S. and launch a product we could feel good about people using. Not just when it comes to results, but ethics, too. Because we have standards as high as yours!

At Gussi we don’t believe you should have to risk your health to get beautiful hair. We’ve developed a highly efficacious formula with a unique combination of ingredients like proteins and vitamins that are designed to fortify the hair while smoothing it effectively, yet safely. Take it from our thousands of fans when they say it really works!

Because we omit dangerous formaldehyde and other chemicals, Gussi is NOT a toxic chemical straightener or relaxer, so it won’t make your hair permanently straightened like you may have seen from a traditional salon treatment. It WILL make your hair smoother, shinier, healthier, and more manageable! Keep in mind that our results last up to six weeks.

We are indeed non-toxic when used as directed! Gussi is proudly free of formaldehyde, paraformaldehyde, parabens, phthalates, sulfates, mercury and methylene glycol.

We go beyond that by saying buh-bye to even more nasties, instead using nourishing oils and vitamins to help you get the best hair results, safely.

Gussi is made with proprietary keratin proteins that are derived from sheep’s wool, and our Protection Plan Upkeep Shampoo and Conditioner include sericin that is derived from discarded silkworm cocoons, but no animals are harmed in the harvesting of these ingredients. These materials would otherwise go to waste if we didn’t use them! All other ingredients are vegan.

Yes, our Gussi at-home keratin treatment, as well as our aftercare products are wheat and gluten free. All Gussi products are made without gluten or gluten containing ingredients. Gussi products are manufactured in facilities that have strict ingredient separation, and equipment cleaning and sanitizing procedures in place to mitigate any cross transfer of gluten ingredients to Gussi products. Therefore, Gussi products can be considered free of gluten.

Absolutely! Gussi is certified by both PETA and the Leaping Bunny organizations as cruelty-free. This means absolutely no testing on animals - never have, never will. Because we love Fido just as much as you do!

We always recommend a patch test on your arm or the back of your neck, waiting 15 minutes to ensure no reaction, especially if you have any allergies or skin sensitivity. While our ingredients are safe for topical use, if you have any health or skin conditions, we suggest consulting your physician or dermatologist before use.

Gussi’s hair product formulas are all proudly made in the USA. Our packaging is made of global materials. Our hair tools and accessories are made in China.

Our At-home Keratin Treatment does contain small levels of PEG-12 Dimethicone, a polyether silicone, which is a safe water-soluble surfactant. This ingredient helps to do all the following: allow our product to apply evenly, enhance the appearance and feel of hair, increase suppleness, improve gloss or sheen and improve the texture of hair.

Yes, Gussi can be used on all hair! Results may vary according to a number of factors, like the type of hair you have, the texture, coarseness, porosity (which is fancy speak for your hair’s ability to absorb moisture), if your hair is chemically-treated, as well as your hair’s overall condition and health.

Yes, Gussi can be used on color-treated hair! If you’re in the mood to color your hair or already have an appointment booked, go ahead. You can color your hair immediately following your Gussi treatment.

If you’ve very recently colored your hair, you may experience a slight color shift after using Gussi — brightening and refreshing blondes or lifting artificial color for darker and red or burgundy hues. We recommend waiting at least five washes after your color service before you Gussi up. Reduce the temperature of your flat iron by 10° from the recommended temperature to prevent heat damage.

Henna and progressive hair color may contain metallic salts like copper, silver, lead, and magnesium. These metallic salts can eventually build up on the hair causing adverse results; dry, damaged, dull, or brittle. If the hair has been treated with an at home henna, it is recommended to remove the henna from the hair prior to a Gussi treatment.

As with all keratin smoothing treatments, there is a potential to alter color. Freshly applied hair color (professional or at-home) has a higher tendency of lightening or changing. If your hair has red, orange, pink, blue, green, or any other bright fashion colors, there also may be a greater tendency for change. Fragile, blonde, or natural gray hair can show warmth if a flat iron with too high of temperature is used during the lock step.

You can eliminate any potential issues related to color change if your hair is colored right after your Gussi treatment. If you have recently colored your hair, we recommend waiting at least five washes before applying Gussi. If unwanted warmth does start to occur during the lock step, decrease the flat iron temperature, and increase the number of passes with the flat iron.

At the flat iron step, it is best to clip most of your hair up and start flat ironing at the nape of your neck. Using a test strip of hair, you can check for any color change and if you see a difference, you can lower your flat iron temperature accordingly. You may need to go over the hair multiple times when lowering the flat iron temperature.

If you’ve recently used another chemical straightening treatment, we recommend giving your hair a break and waiting at least two weeks before using Gussi.

Yes indeed, Our Squeaky Clean Priming Shampoo is sulfate-free and has a neutral pH level equal to water, so it lifts the cuticle only a small amount, allowing the treatment ingredients to penetrate hair without incurring damage. Our Smooth Operator Keratin Treatment is full of restorative proteins, oils and vitamins that help to improve the appearance of damaged split ends, for hair that looks more healthy and refreshed.

Our daily-use keratin-infused Shampoo and Conditioner are sulfate-free and also chock-full of hair-loving ingredients to gently cleanse, deeply condition, and help to keep hair healthy and smooth.

Absolutely not. Part of what makes Gussi, Gussi is that you get to choose how you style your hair. Our non-toxic, formaldehyde-free products are formulated to never break the bonds of the hair, which means your curly hair can come back whenever you like, but the curl will be more elongated for the duration of your treatment. If you want a super sleek appearance, flat iron your hair for a smooth as glass look. If you want to show off some curl, just use a diffuser when you blow dry or air dry it to get some of your natural curl pattern back - it will be more elongated and shiny. So, for the entire six weeks of your treatment, you’re never locked into one look—you’ve got nothing but pretty possibilities ahead.

We’ve formulated to stand up to the elements, so even if it’s humid or rainy, your treatment results are proven to hold up. The Gussi Gang’s rocked their shiny locks everywhere from Miami to the tropics, with tons of smooth-haired selfies to show for it ;)

Gussi is formulated without formaldehydes or dangerous chemicals, though, to be extra safe, we always recommend double-checking with your physician for a professional recommendation before you begin your smoothing treatment.

You need just a few essentials to get the Gussi job done: a towel, some hair clips to keep it all neat, a plastic fine-tooth comb, a round or paddle brush, a blow dryer and a flat iron (we recommend using our Mane Squeeze™ 1” Titanium & Ceramic Flat Iron). Make sure not to use a metal comb, as this can interfere with the active ingredients in our formula.

You’ll see results immediately after doing your treatment! We’re all about that instant gratification. The treatment takes just 15-30 minutes to process, plus some time to prep and style.

Believe it or not, you don’t have to wait! You can tie your hair up, shower, style, sweat, wash, color and live your life immediately after the treatment is locked in with a flat iron! Gussi is here to make your life easier with no downtime needed. Now go resume your regular routine and enjoy your new frizz-free hair!

Take good care of your hair by using a sulfate-free shampoo and deeply nourishing conditioner, like our Protection Plan Upkeep Shampoo and Conditioner. Because our Upkeep Shampoo and Conditioner both have keratin proteins in them, they do wonders to prolong your sleekness - it’s like a mini treatment refresh each time you use them!

Basically, the less you wash your hair, the longer your results will last. Results will begin to gradually fade as the weeks go on, eventually washing out completely (without leaving a harsh demarcation)—but healthier hair is able to hold onto smoothness and shine longer.

Nope! When applying your keratin treatment, we recommend that there should still be some Treatment Spray left in your strands after the light rinse. This helps to ensure that enough of the nourishing keratin goodies penetrate your hair, but it doesn’t make the hair oily. After the treatment is complete and you’ve blow dried and flat ironed, feel free to fully wash whenever you’d like.

To avoid any risk of drying out hair, ensure you lightly rinse off all of the Treatment Spray as extra keratin left on the hair has the potential to make hair feel dry until it is washed or wears off. Don’t set your flat iron temperature too high (start at 380° and never over 410°), as to avoid excessive heat damage. 

If your hair feels dry after the treatment, use a deeply hydrating daily conditioner (like our Protection Plan Upkeep Conditioner), a weekly hair mask, or leave-in conditioner. We always recommend using heat protection products after your treatment, when using hot tools on keratin-treated hair.

The results last for up to six weeks, but we recommend placing an order again after four weeks to make sure you’ve got Gussi on-hand and ready to go for your next application. Or, to make things extra easy and convenient, subscribe to our Gussi Club and we’ll automatically send Gussi to your doorstep before you need your next application, saving you the hassle and extra moolah (hello, free shipping)!

If you have super frizzy hair, feel free to #gussiUP more frequently, as needed.

Gussi cuts blow dry time by up to 30% after just one treatment! This makes your morning routines easier and faster, and who doesn’t love that extra time back.

You may experience an acidic smell during the application process, this is normal and means that the keratin proteins are activated and working! We recommend applying the treatment in a well-ventilated area and chilling out in an open space while the treatment processes. If possible, open a window to help minimize the scent.

For best results based on your specific hair type, refer to the chart on the instruction card in your Treatment Kit or HERE on our site. We recommend starting with your flat iron temperature at 380°—at this temperature, your hair should be smooth and shiny within 3-4 passes. If your hair requires more than four passes, you may need to increase the temperature up to 410°, but to keep your hair damage-free and healthy, never exceed a max temperature of 410°. It’s very important to not go over 410° - we want soft and silky strands, nothing fried. We recommend using our Mane Squeeze™ 1” Titanium & Ceramic Flat Iron to set exactly the right temperature for your hair type, thanks to its easy-to-read digital display and precise heat control.

Due to the transformative nature of Gussi’s safe and effective keratin, there is potential for hair to retain a scent while processing and when it is wet. This is normal due to the activated keratin proteins, but rest assured, it’s also temporary - if you experience this, the smell will go away as soon as your hair is completely dry. And after a couple of washes, the scent is gone for the remainder of the treatment.

We offer free shipping on any order $75+*. If you subscribe to either the Treatment Kit or the Bundle, every shipment always ships free*, and you’ll save money every time so you never again go a day without your Gussi.

*Within the contiguous United States

You’re in luck, we ship worldwide*! Shipping within the contiguous United States is free on all orders $75+. For all international orders and outside of the contiguous United States, the shipping rate is $30. For our friends in Canada & Mexico, we recommend you grab your Gussi from Amazon as to help expedite shipping. 

*Note that select international markets charge country-specific import taxes & fees. Gussi is not responsible for any custom import duties, taxes, or fees. The customer is responsible for tracking international orders to avoid orders being shipped back to sender. Unfortunately, we are unable to ship to Spain at this time due to local customs constraints.

As soon as you place your order, we’ll start processing it to get it on its way to you. This usually takes about a day or two and we’ll send you an email when your package has officially shipped.

You betcha. We send out a shipping confirmation email for all orders, which includes a tracking link—you can always check the status of your shipment there.

Wichita, Kansas.

Nothing’s more important to us than people loving our products, so if for any reason, you’re unhappy with your results, we want to hear about it. Reach out to us directly and we’ll personally get in touch to help figure it all out and make sure you get what you need from us. Send a note to customerservice@gussihair.com

Please expect a reply shortly, Monday-Friday from 9am-6pm EST and 24-48 hours after business hours.

If you have any other questions or inquiries, including press requests or opportunities to collaborate or work together, please email us at customerservice@gussihair.com, and we will reply ASAP, typically within one business day or less!