Keratin and Smoothing
Clean beauty smoothing treatments that tame frizz, restore softness, and protect the integrity of your hair.
Smooth, Not Sacrificed
Smoothing treatments at Sienna House are formulated to deliver real results without compromising the integrity of your hair. We offer two trusted systems: Kera R/X, a professional keratin treatment, and Oway Hstraighten, a permanent smoothing treatment with 87.17 percent naturally derived ingredients.
Both services are paired with a consultation so we can recommend the right system for your hair type, texture, and the smoothness you want to live with.
Smoothing Services
Two trusted treatments. One thoughtful consultation. The smoothness that fits your life.
Kera R/X
A professional keratin treatment that smooths frizz, reduces drying time, and adds incredible softness and shine. Ideal for clients who want manageable, sleek hair without permanent straightening.
Oway Hstraighten
A permanent smoothing and taming treatment using 87.17 percent naturally derived ingredients. Designed for clients who want serious frizz control with a clean beauty conscience.
Oway Hstraighten Ingredients
A look at what is inside the Hstraighten system, designed around clean, plant powered actives.
- Biodynamic dock
- Organic mullein
- Ethical date extract
- Oleoblend Complex, a biotechnological compound that forms a light protective film on the hair surface
"We believe that taking care of the environment and looking good can go hand in hand. Even our smoothing services live by that rule."
Kristin Thompson, Founder
Inside the Oway Philosophy
Our founder Kristin trained at Oway headquarters in Bologna, Italy, where she experienced clean beauty from farm to formulation. That education shapes every smoothing service on our menu.
It is why we recommend Hstraighten so often: a real result, with ingredients you can pronounce, and a formula rooted in sustainability and responsible sourcing.
Book a ConsultationYour Smoothing Appointment
Consultation
We assess your hair type, frizz level, and goals to determine whether Kera R/X or Hstraighten is the better fit.
Application and Process
Your stylist applies the chosen treatment with care, allowing proper processing time to lock in smoothness without compromising hair health.
Aftercare Guidance
You leave with a clear aftercare plan, including product recommendations and washing instructions to extend your results.
Frequently Asked
What is the difference between Kera R/X and Oway Hstraighten?
Kera R/X is a keratin treatment that smooths and reduces frizz, with results that gradually wear off over 3 to 5 months. Oway Hstraighten is a permanent smoothing treatment made with 87.17 percent naturally derived ingredients, for clients who want long term frizz control with clean beauty values.
How long does a smoothing treatment take?
Most smoothing services run 2 to 4 hours depending on hair length, density, and the system selected. Your stylist will give you an accurate time estimate at consultation.
How long do results last?
Kera R/X results typically last 3 to 5 months. Oway Hstraighten is a permanent smoothing treatment, though new growth will need to be retreated over time.
Can I color my hair on the same day as a smoothing treatment?
We typically recommend spacing color and smoothing services. Your stylist will recommend the best sequence to protect your hair and your color investment.
Are your smoothing treatments formaldehyde free?
Oway Hstraighten is formulated with naturally derived ingredients in line with the Oway clean beauty philosophy. We are happy to walk through ingredient lists at your consultation so you can make an informed choice.
Where is Sienna House located?
We are located at 913 W Mary St, Austin TX 78704, in the Bouldin Creek neighborhood. Street parking is available along 5th Street, with three designated spots in front of the building.
Book Your Smoothing Treatment
Clean, lasting smoothness crafted in Bouldin Creek. We can't wait to see you.
Book NowOr return to our home page to explore the full Sienna House experience.