Breathe. Watch the colors. Reset.
Calmstone is designed to complement your existing wellness routine.
Use it:
- During breathing exercises
- For meditation or mindfulness practices
- Before or after yoga
- While stretching
- As you prepare for bedtime
- Necessary work breaks
- Whenever you want a daily moment to slow down
No complicated setup. Just pick it up and begin.
How It Works
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Hold Calmstone
Hold Calmstone comfortably in your palm while practicing slow breathing, meditation, or mindfulness.
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Watch the Colors Change
As your hand temperature shifts, Calmstone’s LED lights move clockwise through the color scale, giving a simple point of focus.
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Simply Relax
Use the changing colors to stay engaged with your breathing practice. Pink and white generally represent the highest relaxation levels on Calmstone’s scale, but every person’s baseline and experience are different.
Calmstone

Train Your Body to Return to Calm
Calmstone has been used by trusted therapists, psychologists, and wellness professionals around the world as a supportive tool for relaxation and biofeedback practice.
In studies led by Dr. Ly, participants experienced reductions of anxiety scores in 80% of biofeedback sessions, and reductions of chronic pain scores in 60% of biofeedback sessions.
With just 10-15 minutes of practice, Calmstone helps you train your mind and body to quickly return to a state of calm. Learn to restore peace faster, creating a more fulfilling and relaxed life.
Featured on MedScape
Calmstone was first embraced by medical and wellness professionals. Following its Medscape feature after the 2023 American College of Lifestyle Medicine Conference, Calmstone gained wider recognition among therapists, wellness experts, corporate wellness leaders, and holistic health practitioners. Read the Medscape article here.
Making Wellness Accessible & Affordable
Founded by Dr. Franklin Ly in Spring 2023, Calmstone's foundation is rooted in wellness. His mission was established from a desire to make biofeedback technology accessible and affordable for everyone. Dr. Ly and his team are passionate about improving quality of life through simple, effective tools that support mental and physical well-being. What began as a small business has since grown into a global movement, serving health and wellness communities worldwide.
Supports
Therapy Practices
"Utilizing the Calmstone during a therapy session was an awesome experience for myself and my client. In real-time we were able to track their baseline physiological state and track progress to achieve calm utilizing Calmstone’s visual feedback light indicators. Typically, we base progress with emotional regulation on self-reporting, but Calmstone actually provides feedback in-vivo for the client and therapist to record. Utilizing Calmstone regularly can provide regular exercise for the client to learn to master emotional regulation through controlled breathing and other coping techniques. It is truly an awesome device that is handheld and convenient to use in therapy practice." - Jacob Cordero, MS
great for
Chronic Pain Management
"As a chronic pain coach myself I have to say that it is amazing! The visual biofeedback is a really intuitive way to implement calming techniques such as breathwork and see how it affects your nervous system in real time." -Simone H.
“Such a wonderful product! My colleagues and I are big fans and recommend them for our patients who are struggling with pain and anxiety.” -Ericka Dickson, LCSW
learn to
Relax
"With a history of insomnia (especially before big events) my hopes of getting a good night of sleep were slim. The Calmstone was so effective in slowing my mind down! I was able to fall asleep in a short period of time which was such a breakthrough in my life! It proved to me that I have control over my state of mind. It is an amazing little tool." -Alex C.