Launching Lutea™ - and how it's different to Nettle™
We’re thrilled to introduce Lutea™ - our newest product, and our first release in the United States. Lutea™ is built on the same scientific foundation as Nettle™, but it represents a new perspective on how we think about women’s brain health, daily wellbeing, and self-care.


The Brain-first Approach
Lutea™ is a wellness device registered for consumer use and designed for the U.S. and global wellness market. Unlike traditional solutions that rely on hormones or medications, Lutea™ works with the body's natural adaptability through transcranial direct current stimulation (tDCS), a non-invasive form of neurostimulation.
What Is Lutea™?
Lutea™ is a wearable headband that uses transcranial direct current stimulation (tDCS), a gentle form of non-invasive brain stimulation to support your wellbeing throughout your menstrual cycle. The device delivers a mild electrical current to specific brain regions involved in mood and focus, helping your brain maintain balance during hormonal shifts.
Lutea™ brings neuroscience-backed support into an easy-to-use, at-home format.
Understanding the Technology
What is tDCS?
Transcranial direct current stimulation works by sending a gentle electrical current through the scalp to targeted brain regions. This mild stimulation supports the brain's natural ability to adapt and form new neural connections, a process called neuroplasticity.
Lutea™ specifically targets the motor cortex and dorsolateral prefrontal cortex, brain regions involved in emotional regulation, focus, and how you experience pain and fatigue.
How does it support wellbeing?
The brain's ability to regulate mood, focus, and energy fluctuates naturally throughout your cycle as hormones shift. By delivering gentle stimulation during your luteal and menstrual phases, when many people experience the most significant changes, Lutea™ helps support your brain's natural adaptive capacity during these transitions.
How to Use Lutea™
Simple daily routine:
- Wear Lutea™ for 20-minute sessions
- Use a few days each cycle (typically during your luteal and menstrual phases)
- No medication, hormones, or side effects
- Fits easily into your existing routine
Personalize Your Approach
Lutea™ works best as part of a complete cycle-aware routine. That's where the Samphire app comes in.
Track what matters to you:
- Mood, energy, focus, and physical sensations
- Sleep quality, movement, and nutrition choices
- How you feel before, during, and after using Lutea™
Spot your patterns:
- See how your brain and body respond across cycle phases
- Identify which strategies create the most noticeable improvement
- Understand your unique cycle patterns, not generic "average" data
Build your personalized routine: Because individual responses vary, tracking helps you discover what works best for you, whether that's combining Lutea™ with specific sleep habits, movement practices, nutrition adjustments, or stress management techniques.
Product Details
- Availability: United States, Canada, and 47 countries
- Lutea™ comes at a cost of: $589
- Best Use With: Samphire app; Membership annual: $69.99/ a year after 1 month free (Save 20%), and a Monthly: $6.99 (a month after 1 week free) with cycle tracking and educational resources
- Positioning: Wellness tool for users seeking alternatives to hormonal and pharmaceutical interventions
Get Started
Lutea™ is available now. Users can learn more about the science behind brain-based care and how the brain adapts throughout their cycle.
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