What is galvanic and faradic current ?

Galvanic and faradic currents are both forms of electrical stimulation used in various therapeutic and cosmetic applications. Here's an explanation of each:

Galvanic Current: Galvanic current, also known as direct current (DC), is a continuous and unidirectional flow of electric charge. It is named after Luigi Galvani, an Italian physician and physicist. Galvanic current is commonly used in electrotherapy and skincare treatments.

In galvanic treatments, two electrodes are used: a positive electrode (anode) and a negative electrode (cathode). When the current flows from the positive electrode to the negative electrode, it is referred to as the anodal current. When the current flows from the negative electrode to the positive electrode, it is called the cathodal current.

Galvanic current has several effects on the body or skin, depending on the polarity and the purpose of the treatment. The main effects include:

Iontophoresis: This process utilizes the polarity of the current to facilitate the penetration of ions into the skin. It is often used to deliver beneficial substances, such as vitamins or medications, into the deeper layers of the skin.

Desincrustation: By using a negatively charged electrode (cathode) with an alkaline solution, galvanic current can help to soften and liquefy sebum or other debris, aiding in the deep cleansing of the skin.

Electrolysis: Galvanic current can be employed for permanent hair removal by applying it through a fine needle or probe inserted into a hair follicle. The current causes a chemical reaction that destroys the hair follicle.

Faradic Current: Faradic current, also known as alternating current (AC), is a pulsed or interrupted current that rapidly changes direction. It is named after Michael Faraday, a renowned British scientist. Faradic current is commonly used in physiotherapy and muscle stimulation.

Faradic current is delivered through electrodes placed on the skin. The alternating nature of the current causes muscle contractions, which can be useful for various purposes, including:

Muscle Rehabilitation: Faradic current can be utilized in physiotherapy to strengthen weak muscles, improve muscle tone, and enhance muscle re-education after injury or surgery.

Pain Relief: The pulsating and contracting effect of faradic current can help in reducing pain, especially in cases of muscular pain or certain types of chronic pain conditions.

Cosmetic Applications: Faradic current is sometimes used in cosmetic treatments, such as facial toning. The muscle contractions induced by the current can temporarily lift and firm the facial muscles, providing a rejuvenating effect.

It's worth noting that both galvanic and faradic currents have specific applications and should be used under the guidance of trained professionals to ensure safety and effectiveness.