At Salon St. Louis, we understand that hair texture is as unique as you are—and it can come with both challenges and opportunities. Whether you’re looking to soften curls, reduce frizz, or make your hair easier to style, our keratin smoothing treatments in South Grand St. Louis offer a healthy, effective solution for lasting results.
We proudly serve clients from Tower Grove South, Benton Park, The Grove, and surrounding neighborhoods looking to invest in smoother, shinier, more manageable hair.
Perfect for guests looking for a faster solution with temporary results.
Lasts 4–6 weeks
Adds shine, smoothness, and styling ease
Great for taming frizz and speeding up your daily blow dry.
Standard Express – $115 and up
Blonde Express – $125 and up (specifically formulated for blonde and highlighted hair)
Our most intensive smoothing service for guests looking for long-term results and maximum frizz control.
Lasts 3–5 months
Leaves hair noticeably smoother, softer, and more polished
Ideal for thick, curly, or textured hair types
Requires a consultation and 50% deposit before booking due to extended service time
Smoothing Treatment – $250–$500 (final pricing based on consultation)
Keratin treatments are not chemical relaxers. Instead, they infuse your hair with a protective protein layer that smooths the cuticle, reduces frizz, and adds shine without compromising your natural texture.
We start with a required consultation to evaluate your hair texture, goals, and history. This allows us to recommend the right smoothing service, estimate pricing and time, and ensure the best possible outcome.
Your stylist will perform a deep-cleansing shampoo to remove buildup and prep the hair for maximum keratin absorption. This step is essential for long-lasting results and smooth, even application.
We apply the selected keratin smoothing formula based on your hair type and goals—whether it’s an Express Smoothing Treatment or a full 3–5 month keratin treatment. The formula is evenly distributed from root to end for consistent, silky results.
Your stylist will seal in the treatment with professional heat tools, locking the keratin into the hair shaft. This step smooths the cuticle and enhances shine, softness, and manageability.
We complete your service with a gentle finish and styling tips tailored to your new, frizz-free look. You’ll leave with smoother, more polished hair, and personalized recommendations for Aveda aftercare products to maintain your results at home.
A keratin smoothing treatment is a professional hair service designed to reduce frizz, enhance shine, and make hair more manageable. It works by infusing the hair with keratin—a natural protein found in hair and skin—which helps smooth the hair’s outer layer (cuticle) and seal in moisture. At Salon St. Louis, we offer both express and full smoothing options, customized for your hair type and styling needs. This treatment is ideal for guests who want to soften curl patterns, eliminate daily frizz, and reduce blow-dry time without fully straightening the hair.
The longevity of your keratin treatment depends on the type of service you receive and how you care for your hair afterward. Our Express Smoothing Treatments typically last between 4–6 weeks and are great for a quick refresh or seasonal humidity control. The Full Keratin Smoothing Treatment lasts between 3–5 months and provides longer-lasting results with more dramatic frizz reduction and smoothing. To maintain your results, we recommend using sulfate-free shampoos, avoiding harsh chemicals, and following the aftercare instructions provided by your stylist.
Keratin treatments are not chemical straighteners—they are smoothing treatments that relax the hair’s natural texture while improving its manageability and shine. If you have curly or wavy hair, you’ll still retain some of your natural pattern, but it will be significantly easier to style, and frizz will be greatly reduced. Your results will depend on your natural hair type, the formula used, and how often you heat style your hair. We’ll customize your treatment based on whether you want to soften your curls or simply control frizz and boost shine.
In many cases, yes—but it depends on the type of color and smoothing service being performed. If you’re receiving permanent color, we typically recommend doing color first and then the keratin treatment to help seal in the color and lock in shine. However, some hair types may require a more strategic timeline, especially if lightening or correcting color is involved. During your consultation, your stylist will create a personalized treatment plan that takes your color history, goals, and hair health into account to ensure the best possible results.
Proper aftercare is key to maintaining the results of your keratin treatment. We recommend using sulfate-free, color-safe shampoos and conditioners, avoiding salt-based styling products, and minimizing exposure to chlorine or salt water. For the first few days, your stylist may also suggest avoiding tight hairstyles, heavy oils, or moisture-heavy activities like saunas or swimming. During your visit, we’ll send you home with personalized aftercare tips and product recommendations to help you extend your smooth, frizz-free finish.
