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Different types of techniques - Thermoloysis/Diathermy
This epilation technique produces heat, using a high frequency, short wave diathermy current to cauterise the hair at its follicle. This current is channelled through a very fine needle to the desired area; the heat is discharged for 1-3 seconds.
Galvanic
This is the original method of epilation, using a galvanic current, which causes the salt and water in the hair follicle around the probe to be chemically altered, producing lye. Lye is the caustic substance that is the destructive ingredient in the galvanic technique. Lye dissolves the dermal papilla that causes hair growth.
Galvanic has been perceived as being more effective than diathermy, although the method of hair removal takes longer than diathermy or blend. Lye can reach all parts of the hair follicle, as it's a fluid, so it means that distorted and curved follicles can be effectively treated.
Blend
The blend epilation technique, is literally what it's called, it's the blend of both the diathermy and galvanic currents. This technique is based on the theory that lye is more caustic when it is heated, so theoretically this should be the most effective technique. When blended the lye becomes more turbulent and therefore gets into all areas of the follicle.
The heat means the tissue surrounding the dermal papilla becomes more porous, the lye can then diffuse into it, making the treatment more effective. The blend of both the heat and chemical reaction means this treatment is less uncomfortable than diathermy alone, although it takes slightly longer.
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