Dermatomal mapping
Each application field is defined by the surface territory associated with a spinal or cranial nerve segment.
Method
Neuroanatomy as a design language.
The map comes first. The composition follows.
Peripheral architecture
Plexus formations — brachial, lumbar, coeliac — guide how a family covers a broader projection field.
Neurocutaneous interface
Formulations are composed for the cutaneous surface, with texture and carrier chosen for the region.
Reproducible routines
Structured protocols make application consistent across time and across practitioners.
Method
From assessment to follow-up
A four-step framework used consistently across all product families.
- 01
Assessment
The application region is identified using anatomical landmarks, dermatome maps and professional judgement.
- 02
Application
The corresponding formulation is applied to the defined neurocutaneous surface zone.
- 03
Protocol
A structured routine defines frequency, quantity and duration for consistent, reproducible use.
- 04
Follow-up
Observations are documented over time and reviewed together with the healthcare professional.
Principles
What guides the work
Anatomical reference
Every family is defined against recognised segmental anatomy rather than against a symptom or a claim.
European development
Formulations are developed and produced in Europe under cutaneous topical quality standards, with composition disclosed.
Professional dialogue
Method and documentation are reviewed with physicians, therapists and applied practitioners.
Neutral information
Material is written to explain where and how a formulation is applied, without persuasion.
Continuous refinement
The method is versioned; each revision states what changed and what it replaces.
Method evolution
A method that is versioned
Each revision states what it changed and what it replaces. Superseded versions remain documented.
- Method 1.0SupersededRegion defined by anatomical landmark description alone.
- Method 2.0SupersededDermatomal and plexus indexing added; composition matched to region characteristics.
- Method 3.0CurrentMetameric indexing across 31 segments, six atlas layers and versioned protocol documentation.
- Method 4.0In preparationExtension towards viscerotomes, sclerotomes, myotomes and autonomic pathways.
Scope
SIRIAM LAB formulations are cutaneous topical products. The material presented here is educational and structural in nature. It does not constitute medical advice, and no therapeutic effect is claimed or implied.
What we document
Concepts, methodology, anatomical reference material and educational resources. Each page states what it is and what it is not.
What we do not claim
No therapeutic effect, no diagnosis, no clinical evidence. Internal observations are never presented as study results.
How material is revised
Documentation is versioned. Superseded material is marked as such rather than removed silently.
Where interpretation belongs
Clinical judgement remains with the treating healthcare professional. The institute supplies reference material only.
Knowledge graph
Related knowledge
The anatomical vocabulary behind the formulation architecture.
Formulation
FormulationOAA DUOOccipital and upper cervical application zones, formulated for the cranial dermatome transition.→FormulationPHRENIC DUOTwo-step topical concept for the phrenico-cervical field: the lower cervical, supraclavicular and shoulder application zones.→FormulationCTO DUOCervicothoracic zone concept, developed for the transition between neck and upper back.→FormulationPlexus SolarisAnterior thoracic and epigastric application concept inspired by the coeliac plexus region.→
Metamer
MetamerMetamer C0Suboccipital transition field between cranium and atlas.→MetamerMetamer C1Largely without a distinct cutaneous strip; described as a transition field.→MetamerMetamer C2Posterior scalp to the vertex and the angle of the mandible.→MetamerMetamer C3Posterolateral neck and lower occipital surface.→
Neurocutaneous zone
Neurocutaneous zoneOccipital neurocutaneous zoneWhere cranial and upper cervical surface territories overlap across the nuchal line.→Neurocutaneous zoneCervicothoracic neurocutaneous zoneThe transition between the cervical shoulder line and the upper thoracic bands.→Neurocutaneous zoneEpigastric neurocutaneous zoneAnterior trunk field mapped to the coeliac plexus surface projection.→Neurocutaneous zoneThoracolumbar neurocutaneous zoneJunctional field where thoracic bands give way to lumbar territories.→
Knowledge article
Knowledge articleMedial branches of the dorsal ramiThe paraspinal strips immediately lateral to the spinous processes, and their segmental regularity.→Knowledge articleReading peripheral nerve territoriesWhy peripheral nerve fields and dermatomes describe the same skin in two different languages.→Knowledge articleThe sacral plexusL4–S4 on the posterior pelvic wall, origin of the sciatic nerve.→Knowledge articleDefining and covering an application fieldA neutral, repeatable technique: landmark, delimit, cover, document.→