The Sterex Insulated TwoPiece F3I electrolysis needle is manufactured from medical grade stainless steel and coated with a specialist insulation material. Designed exclusively for short wave diathermy, this needle provides controlled energy release for safer, more precise treatments.

The insulation ensures that the current is released only from the tip of the needle, reducing surface heat spread and minimising skin trauma — making it particularly suitable for sensitive and melanin-rich skin types.

Key Benefits

✔ Specialist insulation coating
✔ Releases current only from the tip
✔ Minimises surface skin trauma
✔ Suitable for sensitive skin types
✔ Ideal for melanin-rich skin prone to hyperpigmentation
✔ Professional-grade medical stainless steel

Features & Construction

• Two-piece needle design

• Manufactured from medical grade stainless steel

• Coated with specialist insulation material

• Designed ONLY for short wave diathermy

• Precision energy delivery

Skin Type Suitability

Insulated needles are particularly recommended for:

• Sensitive skin types

• Melanin-rich skin tones

• Skin prone to post-inflammatory hyperpigmentation

By concentrating the current at the needle tip, the F3I reduces the risk of unnecessary skin damage during treatment.

Important Usage Note

This needle is designed exclusively for short wave diathermy treatments. Always confirm compatibility with your electrolysis machine before use.

Why Choose Sterex?

Sterex is a trusted name in professional electrolysis, offering precision-engineered needles designed to meet clinical standards. The Insulated TwoPiece F3I provides enhanced control, safety and performance for advanced treatment protocols.