Medical Electrophoresis and Iontophoresis with the Mesoform Therapeutic Device: Biophysics, Polarity Chart, and Clinical Protocol
Electrophoresis vs. Iontophoresis: What's the Difference?
"Medical electrophoresis" and "iontophoresis" describe the same technique: delivering ionized substances through the skin using a direct electric current. In the scientific literature, the accepted term is iontophoresis.
The method relies on the movement of charged particles under an electric field. An ionized drug is placed under the electrode that matches its own charge — like charges repel, driving the ions deeper into the tissue.
Delivery efficiency depends on the substance's charge, concentration, and molecular properties, the solution's pH, current strength, treatment duration, electrode characteristics, and skin condition.
Transdermal delivery remains one of the most effective non-invasive approaches in dermatology, physical rehabilitation, and aesthetic device medicine. The skin's natural barrier — the stratum corneum, a tightly packed layer of corneocytes embedded in a hydrophobic lipid matrix — normally lets through only a small amount of lipophilic molecules under about 500 daltons.
Medical electrophoresis (iontophoresis) drives ionized compounds through an intact epidermal barrier using a controlled electric current. The precise current parameters of the Mesoform Therapeutic system combine targeted local pharmacotherapy with physiological micro-current stimulation of cellular metabolism.
1. The Biophysics Behind Delivery
Three complementary physical mechanisms move active substances across the skin barrier during a Mesoform Therapeutic session:
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Electrorepulsion — the direct electrostatic repulsion of like-charged ions away from the working electrode and into the tissue. Cations (positive ions) are delivered from the anode (+), anions (negative ions) from the cathode (–).
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Electroosmosis — the bulk convective flow of solvent and uncharged polar compounds through skin pores under the electric field. At physiological pH, human skin carries a net negative charge (isoelectric point pI ≈ 4.0–4.5), so electroosmotic flow runs predominantly from anode (+) to cathode (–) — allowing even larger molecules, including medium- and high-molecular-weight complexes, to be delivered.
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Electropermeabilization — a temporary drop in transdermal electrical resistance caused by the reorganization of lipid bilayers, which opens hydrophilic channels for deeper penetration.
The main low-resistance pathways are the skin's appendages: sweat and sebaceous gland ducts and hair follicle openings. For more on how electrical currents work, their types, and applications, see our article on Electrotherapy.
2. Pharmacokinetics and the "Skin Depot" Effect
Unlike injectable mesotherapy or oral medication, iontophoresis creates a distinct local kinetic profile:
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Depot effect: 85–90% of the active substance stays in the epidermis and papillary dermis. This forms a slow-release depot that feeds the target cells and microcirculation gradually over 12 to 72 hours.
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No systemic toxicity: the drug acts strictly within the treated area, bypassing the harsh gastrointestinal environment and first-pass liver metabolism.
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Mesoform's physiological synergy: the modulated therapeutic current stimulates membrane potentials, normalizes vascular tone, improves lymphatic drainage, and substantially boosts endogenous mitochondrial ATP synthesis.
3. Polarity Chart and Solution Compatibilit
Important: standard emulsions and oil-based formulations can't be used for electrophoresis. Drugs must be prepared as ionized, hydrophilic solutions free of bulking electrolytes (Na⁺, Cl⁻ salts), which compete with the target molecules for charge transfer.
"Therapeutic / Rehabilitation Protocols"
Indication / Drug
Dexamethasone / Hydrocortisone
Working Electrode
Cathode (–)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Reduces acute inflammation and swelling (synovitis, bursitis, tendinitis)
Indication / Drug
Novocaine (1–2%) / Lidocaine
Working Electrode
Anode (+)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Local anesthesia, relief of pain and muscle spasm
Indication / Drug
Chondroitin sulfate / Glucosamine
Working Electrode
Cathode (–) / Anode (+)
Delivery Mechanism
Electrorepulsion / Electroosmosis
Clinical Purpose
Cartilage repair in osteoarthritis, chondrocyte stimulation
Indication / Drug
Bischofite / Potassium iodide
Working Electrode
Cathode (–)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Resorptive effect, reduces scar contractures, nourishes ligaments
Aesthetic Protocols" — see mesoformpro.com
Active Ingredient / Drug
Low-molecular-weight hyaluronic acid
Working Electrode
Cathode (–) / Anode (+)
Delivery Mechanism
Electrorepulsion / Electroosmosis
Clinical Purpose
Deep hydration, dermal matrix restructuring
Active Ingredient / Drug
Vitamin C (sodium L-ascorbate, magnesium ascorbyl phosphate)
Working Electrode
Cathode (–)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Collagen synthesis, antioxidant protection, hyperpigmentation therapy
Active Ingredient / Drug
Nicotinic acid / Niacinamide
Working Electrode
Anode (+) / Cathode (–)
Delivery Mechanism
Electrorepulsion / Electroosmosis
Clinical Purpose
Improved microcirculation, vasodilation, lymphatic drainage, alopecia treatment
Active Ingredient / Drug
Zinc (Zn²⁺) / Sulfur
Working Electrode
Anode (+)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Sebum regulation, anti-inflammatory effect for acne and rosacea
Active Ingredient / Drug
Copper (Cu²⁺, copper tripeptide-1 GHK-Cu)
Working Electrode
Anode (+)
Delivery Mechanism
Electrorepulsion
Clinical Purpose
Regeneration, fibroblast stimulation, scar remodeling
Active Ingredient / Drug
Peptide complexes and amino acids
Working Electrode
Determined by the solution's pI
Delivery Mechanism
Electrorepulsion + Electroosmosis
Clinical Purpose
Targeted anti-aging therapy, neocollagenesis stimulation
4. Clinical Protocol for the Mesoform Therapeutic Procedure
Drug electrophoresis combines two therapeutic and preventive factors at once: a monopolar electric current and the drug being introduced. Alongside the current's own therapeutic effect, each drug triggers its own specific physiological response — an ionic reflex.
There are two main approaches: direct-current electrophoresis and monopolar pulsed-current electrophoresis. The Mesoform Therapeutic device delivers drugs using a low-voltage, low-intensity monopolar current, applied either continuously (galvanic current P1) or in pulsed modes (P2, P3).
Electrophoresis substantially enhances the effect of medications and lowers the risk of side effects.
The drug is introduced directly into the affected tissue or reflex zones at low concentrations; most of it stays in the superficial skin layer, forming a depot and supporting local ionic reflexes.
Remove all metal jewelry before the procedure. Clean the treatment area with an alkaline cleansing solution, then with 3% hydrogen peroxide.
Secure the electrodes on hydrophilic pads (6–8-layer flannel pads), sized to at least match the treatment area and pre-soaked in water. Place two layers of gauze or bandage soaked in the drug solution between the skin and the pad.
Drug polarity is determined by the manufacturer's recommendations for that specific active substance.
Secure the electrodes with elastic straps or adhesive tape.
Sessions are typically scheduled 3 to 5 times a week.
A full course consists of 6 to 15 sessions.
A repeat course is generally not recommended sooner than 4 weeks after the previous one.
Your physician selects the electrophoresis medication based on the condition's underlying cause and pathology.
5. Practical Tips and Common Mistakes
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Mistake #1: Using non-specific gels, oil-based ointments, or solutions with bulking electrolytes. Standard lanolin- or petroleum-jelly-based ointments are dielectrics and block current flow entirely. Extra salts (Na⁺, Cl⁻) in the solution can also absorb up to 90% of the charge, leaving little to carry the actual drug. Use only specialized hydrophilic ionized solutions or pharmacopoeial forms made for electrophoresis.
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Mistake #2: Pulling the electrode off abruptly while the current is on. This causes an unpleasant current spike (break extra-current) for the patient. Always turn the current down gradually on the Mesoform Therapeutic device before ending a session.
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Mistake #3: Chasing maximum current strength. More isn't better. Excess current density irritates the skin, triggers capillary spasm, and suppresses the body's natural recovery processes. The optimal setting sits at the subsensory level or a light tingling threshold.
FAQ
Can electrophoresis on Mesoform Therapeutic be combined with other physiotherapy methods?
How many sessions are needed for a course of treatment?
6. References
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Guy, R. H., Kalia, Y. N., Delgado-Charro, M. B. (2001). Iontophoresis: topical and transdermal drug delivery. Advanced Drug Delivery Reviews, 46(1-3), 3–26.
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Prausnitz, M. R., Langer, R. (2008). Transdermal drug delivery. Nature Biotechnology, 26(11), 1261–1268.
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Kalia, Y. N., Naik, A., Garrison, J., Guy, R. H. (2004). Iontophoretic drug delivery. Advanced Drug Delivery Reviews, 56(5), 619–658.
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Banga, A. K. (2015). Electrically Assisted Transdermal and Topical Drug Delivery. CRC Press / Taylor & Francis Group.
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Leduc, S. (1907). Electric Ions and Their Use in Medicine. Rebman Company, London.