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This is a combination of both direct and alternating current with biterminal application.


The patient holds the positive electrode and the negative electrode (treating needle) are inserted into the follicle. Direct current is applied to the hair root throughout the procedure followed by a spurt of alternating current in between. So the hair gets destroyed by two processes i.e. chemical energy and heat energy resulting in coagulative necrosis and dehydration of the germinative cells and hair papilla thereby yielding better results.



Electro surgical device.

Needles – stainless steel needle of diameter 0.002 – 0.007.

Magnifying lens.

Epilating forcep.


Preoperative preparations:

  • Investigations for hormonal cause of hirsuitism and treatment wherever required.
  • Blind procedure hence 30-40% regrowth and the need for follow-up are explained and written consent are taken from the patient.
  • Test patch of 10-15 hair on a cosmetically unimportant area (lower leg) carried out initially. Assess for effects like hyper pigmentation or scarring after a week, before progressing further.
  • Shaving the area 2-3 days earlier increases efficacy as it ensures epilation of only anagen hair.


  1. Area cleaned with non-inflammable antibiotic lotion (chlorhexidine, providone iodine).
  2. No anaesthesia is required but an ice pack for 1/2 – 1 minute, which minimizes both insertion and electric pain. This can be repeated, if required, intermittently during the procedure.


Except for the current used, this is similar in all the three types of  electroepilation.

  1. The skin is stretched between the left thumb and index finger of the operator and needle is inserted into the hair follicle below the hair shaft, opposite to the direction of the hair growth which varies between 100 & 900.
  2. Needle insertion which is done under magnification, should be smooth. 
  3. Easy and painless. Severe pain with or without bleeding indicates untoward penetration of the lateral wall of follicle.
  4. Needle should be withdrawn completely then reinserted.
  5. Application of current also varies with the type of electro epilating method being used.

Blend Technique:

The current is set between 2-4 units for DC and 1-2 units for AC, which is changed, by 0.5 units on either switch, depending on individual patients requirement. Initially, the DC is switched on by the hand switch and kept so throughout the procedure i.e. for 30-45 seconds. After 10-15seconds, with the DC switched on a spurt of AC is monitored by a preset timer. The end point of current application is appearance of hydrogen gas bubble at the austium.


Computerized Blend:

This is the latest equipment in the markets abroad. The currents (both AC, DC) and time for each are preset. There is only one operating switch, which replaces the hand, and foot switch, which shuts off after the preset time.

In all the three types of machines current is switched off after the required time and the needle is withdrawn from the hair follicle.

The treated hair is pulled gently with an epilation forceps in the direction of the hair growth. The hair is pulled easily if root destruction is complete.

The epilated hair is placed on a gauze piece and its bulb examined for the destructive changes (black charred rounded mass). Number of hair epilated in ½  hr. session is 20-40 by electrolysis, 60-80 by thermolysis and 40-60 by blend.

After treating the first few hair, the optimal time and current parameters for a particular patient can be established.

Chance of scarring due to thermal build-up can be avoided by treating contiguous hair, which is 3-4 mm apart.



  • This method combines the best of electrolysis and thermolysis.
  • Requires greater skill and concentration.
  • Permanent hair destruction rate is 60-80%.
  • Working rate is faster than electrolysis but slower than thermolysis (40-60 per 30 minutes).
  • More effective in distorted follicles and curly hair (e.g. ingrowing hair).
  • Problems of folliculitis are less often encountered.
  • By and large this remains the most effective method for permanent hair removal.


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