FSM – Frequency-Specific Microcurrent
Frequency-Specific Microcurrent (FSM) applies very low electrical currents through conductive contacts while paired frequencies are selected by a trained practitioner. At RAIKO it is explored as an emerging, non-invasive approach within a wider plan that also considers sleep, stress, movement, hydration, pacing and appropriate medical care. The evidence is still developing, so we distinguish clinical experience and manufacturer education from independent proof.
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CustomCare for guided home use
CustomCare device: €2,500. Optional PEMF converter: +€2,500. Home support includes the required course, device setup and practical onboarding, programmes selected according to the agreed home-use plan, access to relevant My RAIKO learning resources and ongoing guidance. The optional converter enables a compatible CustomCare system to also be used for PEMF applications.
FSM: Applications and Evidence
Frequency-Specific Microcurrent (FSM) delivers very small electrical currents through conductive contacts, using paired frequencies. CustomCare and PrecisionCare belong to this approach. Within a whole-person plan, practitioner-selected sessions may complement movement, pacing, sleep and appropriate rehabilitation.
Applications and potential effects
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Muscle soreness: a small controlled study reported reduced delayed-onset soreness after exercise.
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Discomfort and tissue mobility: clinical reports describe improvement, but stronger controlled studies are needed.
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Hand function and Raynaud symptoms: explored in a small systemic-sclerosis pilot; these findings remain preliminary.
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Cellular ATP: a laboratory study found increased ATP in rat skin exposed to low electrical currents. It did not test human FSM treatment, CustomCare or PrecisionCare.
Relaxation may be a subjective experience, but increased endorphin production or euphoria is not an established FSM outcome. The rat-skin ATP finding cannot establish a predictable ATP increase or clinical benefit in people.
Studies and further reading
Delayed-onset muscle soreness: small controlled trial (2010)
Systemic sclerosis: exploratory hand-function pilot (2025)
Tissue softening: clinical observations and proposed mechanisms (2013)
Three wounded warriors: adjunctive FSM case reports (2019)
Microcurrent and ATP: preclinical rat-skin study (1982)
Fibromyalgia associated with cervical trauma: uncontrolled study (2005)
The evidence concerns particular protocols and populations, and does not establish every proposed frequency-specific application or equivalent results for both devices. Use should follow current device instructions and qualified clinical advice.