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Samphire Neuroscience

San Francisco, CAFounded 2021

  • Neuromodulation
  • Wearables
  • Chronic pain

Samphire Neuroscience develops brain-based, non-invasive neuromodulation devices for pain and mood conditions associated with hormonal change. Its Samphire Headband, marketed as Nettle™, targets conditions including PMDD, endometriosis, dysmenorrhea, perimenopause, chronic pelvic pain, and migraine.

Patent
1
Founded
2021
Employees
11–50

reccy insights

Recent highlights

Samphire Neuroscience’s clearest recent milestone was its $5 million seed round announced on Jun 3, 2025, led by Inventure. The round brought the company’s recorded funding total to $7.3 million across six rounds and included participation from Fortify Ventures, FIRSTPICK, AfterWork Ventures, Ayuh Ventures, Seaside Ventures, SOSV, SOSV HAX, APEX Capital, and Marianne Vikkula. The financing followed a $2.3 million pre-seed round announced on Feb 21, 2024. Samphire’s product work centers on Nettle™, a non-invasive tDCS-based device for pain and mood conditions associated with hormonal change, and Lutea™, a wellness-oriented device for stress regulation, sleep, and recovery. A patent publication dated Apr 12, 2024 covers systems and methods for neurostimulation in women’s health. The company is also hiring across clinical partnerships, business development, commercial strategy, and medical science liaison roles, indicating a focus on clinical adoption and commercialization. Public information does not establish additional company-specific launches, awards, or executive changes through Oct 7, 2026.

Written by reccy's AI from company sites, press and funding records · updated Oct 2026

What makes Samphire Neuroscience distinct

  1. 01Focuses on underserved women's health conditions traditionally managed through hormonal or surgical approaches.
  2. 02Clinical trials report benefits for PMDD-related anxiety and endometriosis pain compared with placebo.
  3. 03Nettle™ is a CE-marked Class IIa medical device for the United Kingdom and European Union.
  4. 04The company is certified under ISO 13485 as a medical device manufacturer.
  5. 05Combines clinical research, neuromodulation expertise, and medical and scientific advisory collaboration.

Technology & products4

  • Nettle

    A non-invasive neuromodulation device using transcranial direct current stimulation to target brain regions involved in mood regulation and pain perception, including symptoms associated with PMS, PMDD, endometriosis, and chronic pelvic pain.

  • Nettle Loop

    An ergonomic, adjustable accessory designed to stabilize the Nettle device on the head and improve comfort and fit during movement.

  • Lutea

    A wellness device using the company’s brain-stimulation technology to support stress regulation, sleep, recovery, and performance.

Patents1

In the Cortex

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About Samphire Neuroscience

Products
Nettle, Nettle Loop, Lutea, Samphire App
Leadership
Emilė Radytė, Co-Founder and CEO
Focus areas
Medical devices, digital health, neuromodulation, women's health, chronic pain, mental health, wearables, clinical research
Headquarters
San Francisco, CA
Founded
2021
Employees
11–50
Patents granted
1 (Crunchbase)
Trademarks
4