Cryotherapy can be used to treat a variety of problems such as warts, verrucae, moles, skin tags and pigmented lesions.

Cryosurgery is the selective destruction of lesions by causing cryogenic cell death (Killing cells with extreme temperatures)

Cryosurgery preserves the tissue matrix which is relatively cold resistant, and therefore allows full cosmetic healing with minimal risk of scarring.

How does it work

Cryopen emits a fine jet of nitrous oxide under high pressure which means that the clinician can work within millimetre precision. This destroys the tissue by freezing the inter-cellular fluid, forming ice shards and crystals that rupture the membrane, therefore destroying the cell. No damage is caused to healthy tissue as we can target very accurately.

A freeze-thaw-freeze approach is often used:

Freeze – The applicator is held as close as possible to the skin lesion and moved quickly towards it and away from it.  This could be from 1-30 seconds depending on the size and depth of the lesion.

Thaw – After the first freeze treatment, the tissue is left to thaw for about 30 seconds.

Freeze – After the thaw a second freeze is completed.  The tissue will freeze faster than the first time.


After Treatment

There may be a little stinging sensation on the skin, like a stinging nettle, when the Nitrous Oxide reaches the bottom of the area.  This might last for a few minutes following treatment.

Occasonally a blister may form and persist for a few hours.

Over the following days a scab may form and the lesion become a little red and angry looking.  This will generally resolve over 1-4 weeks and the area will return to normal.

It is important not to pick any scabs as this might lead to scarring.


Side Effects

Cryotherapy is relatively low risk although some side effects may arise.

Pigmentation- hyperpigmentation or hypopigmentation (light or dark areas) – if this does happen the skin usually returns to normal colour after a few months.




Consultations, which are free of charge, will determine whether you would be suitable for treatment and if so the procedure is explained in full including aftercare and costs.

£50 per session- please note:

For some mole treatments, a doctor’s note may be required.

More than 1 session might be needed depending on the lesion.