Foundation’s sulfate-free shampoo in a 900 mL salon-size bottle for your wash routine at home.
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The only shampoo you'll ever need, for all hair types and textures - now in Salon size.
A hydrating, balancing and thoroughly cleansing shampoo that uses coconut-based surfactants for a rich lather to remove buildup for your healthiest hair and scalp. Sulfate-free & silicone-free.
Prefer a smaller bottle? Choose the 300 mL Foundation Shampoo. Already have that bottle? The Foundation Shampoo Refill provides two full refills.
Read how sulfates work in shampoo to choose a shampoo for your routine.
A stylist’s take on Foundation Shampoo
“leaves hair soft and bouncy rather than weighed down”
Sky Kim, celebrity hairstylist, in Vogue · November 19, 2025
Buying for your salon? Explore the RŌZ professional salon program for wholesale account information and backbar options. Qualified U.S. salons can apply for a full-size trial kit.
Clinically-tested, pro-grade haircare designed for visible results.
felt hair was thoroughly cleansed and hair color was preserved
Our signature fragrance evokes the spirit of an untamed California garden, verdant and clean, with subtle notes of woody vetiver and fresh, rejuvenating citron.
Notes of bergamot, fig & neroli blossom
"For the most thorough cleanse & richest lather... ...massage shampoo into completely wet hair & scalp. Spend extra time on the back of the head where most build up occurs. Splash a touch more water into the scalp to work up an incredible lather. Shampoo a second time for a salon grade feel. Rinse thoroughly."
Mara Roszak
RŌZ Founder and Celebrity Stylist
Overall rating: 4.868925 / 5 from 2037 reviews.
The Foundation Shampoo - Salon Size is praised for its luxurious packaging, rich lather, and amazing results. Customers appreciate its hydrating and nourishing properties, which leave hair feeling clean, soft, and smelling nice. The product is also noted for its elegant bottle design and creamy conditioner texture.
Review topics: ["color","feels","packaging","issues","husband","hair","look","scent","bottle","texture","results","shipping","scalp","hydration","formula","pack","ingredients","fragrance","oil","price","size","quality","residue","shampoo","style","amount","weight","conditioner","volume","customer service"].
"When I took a pump I was worried the scent would be too strong and that the shampoo would be too harsh but its perfect. It gets rid of build up and gives me a perfect reset without stripping moisture or giving me an itchy scalp. I have fragrance allergies but it didn't make me break out. I'm so glad I found this shampoo for my very fussy hair/skin!"
"Absolutely love this hair serum! ⭐️⭐️⭐️⭐️⭐️ It has helped so much with my little flyaways and frizz, and my hair already feels softer and healthier in one wash. I’m excited to keep using it and see even more results! Their customer service is also amazing, truly outstanding all around. Highly recommend!"
"I ordered the foundation shampoo and conditioner, foundation mask, milk hair serum, and santa lucia styling oil on the 14 day "try before you buy" promo. I'm so glad I did! Since turning 40, I have struggled with coarse and unruly hair that was dull and would no longer hold a curl (even though I used to have Topanga level hair when I was younger). With the first wash, I could tell the difference. As I rinsed out the foundation mask, I recall thinking "my hair has never felt this smooth". The milk serum and styling oil make it even better. I will definitely be purchasing more products and look forward to seeing how my hair continues to improve."
"I am in love with ROZ product. MY first purchase was the Milk Hair serum, and from there I was sold. I have thick frizzy hair. The Milk Serum, work wonders for my ends of the hair. Leaves my hair very soft. I then purchased Santa Lucia Styling Oil, for after I dry my hair, and my hair feels silky. I read about the hydration shampoo and had to try it. I moved to Denver a little while ago, and the climate is dry, and the water was making my hair ends very dry. With the shampoo I feel my hair is getting the care it needs. I really love this product. I have bought many hair products, but ROZ really is the best. I am very happy with this hair product, and I highly recommend it."
"I have been using a great shampoo, my hair salon just started to carry it. Its sulfate free and smoothes my curly course hair beautifully. I also use the Milk Serum and purchased for my daughter. Well done, Roz"
"Terrible! I was super disappointed with this shampoo and condition! After hearing so many people promote it and talk about it with High praise I was super disappointed as a girl with oily hair. It did not get my hair clean. Would not recommend and wish I hadnt wasted my money!"
"I’ve been long searching for a gentle shampoo + conditioner that is cleansing, without stripping & moisturizing, without being heavy (respectively). It’s a pleasant experience using these & I especially enjoy how well the shampoo lathers. The packaging also looks really pretty in my shower."
"I love ROZ! I always look forward to hair wash days. I have thick, wavey hair and ROZ is like my clarifying shampoo. It’s a good gentle clean that leaves my hair squeaky clean. The scent does vary and it does it have a shelf life so don’t let it sit around for more than 6 months."
"I am totally impressed with this shampoo. I have always used high end shampoo but this shampoo is in whole different galaxy. It really work well on my fine. Gentle without making it flat. I would highly recommend this shampoo."
"I love these products! I have received many compliments on my hair since I have been using them. I will definitely continue to use all the products. My hair is smoother, healthier, and it has more volume."
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