Gemini KTP Laser - Treatment of Pigmented Lesions
The Gemini laser emits two different wavelengths - 532nm and 1064nm, which are targeted to different skin conditions. The laser wavelength is attracted to a particular target, but not to the surrounding normal skin, hence its specificity with regards to treatment. For pigmented lesions we use the 532nm wavelength, which is particularly effective for freckles, sunspots, pigmentation and seborrhoeic keratoses.
Benefits
- Reduction of pigmentation
- Reduction of sunspots
- Reduction of freckles
- Reduction of sun-damaged skin
- Removal of raised lesions such as seborrhoeic keratoses, dermatosis papulosa nigra
Alternatives
- Revlite laser
- Cynergy Nd:Yag laser
- Fraxel Restore Dual
How Does it Work?
The Gemini laser has two wavelengths, the frequencies being 532nm and 1064nm Nd:Yag. When treating the majority of pigmented lesions with the Gemini laser, we use the 532nm wavelength.
Who is a Candidate?
Most skin types, except those with darker skin.
Expectations
Reduction or removal of the pigmented lesions which have been treated.
Safety and Side-Effects
These may include, but are not limited to:
- Soreness and redness - in rare instances, soreness and redness of an open wound may increase.
- Swelling - this is common, especially after treatment on the upper cheeks and forehead. This usually subsides within a few days. Ice is applied after the treatment to limit swelling, and further application at home may be helpful. Sleeping more upright for extensive procedures is recommended for the first two nights.
- Pain - there may be pain during the procedure. Usually, where we are treating a significant number of lesions, topical anaesthetic cream is used.
- Pigment loss - in most patients with brown spots, the area loses colour temporarily. This type of reaction tends to gradually fade, returning to normal over a period of two to four weeks. There is a small risk of permanent pigment loss.
- Hyperpigmentation - there may be a risk of increased pigmentation as a healing phase of patients. When this occurs, the increased pigment usually fades over a period of months and may require the use of bleaching creams. Occasionally it may last longer, but rarely is this permanent.
- Scarring - there is a very small risk of scarring.
- Incomplete result - the lesion(s) being treated may not be completely or even effectively treated with one treatment and may require another session or sessions, of the same or different modality.
Recovery Time
This depends on the lesion treated, but can be anything from two to ten days.
Does it Hurt?
When treating small areas, topical anaesthetic cream is not required, but if a large area is being treated, we suggest the use of a topical anaesthetic cream.
Before Treatment Instructions
Avoid excessive sunlight exposure and tanning one month before treatment.
After Care Instructions
- Wash the area gently with soap and water. We suggest Cetaphil or Neutrogena Extra Gentle cleanser.
- If necessary, moisturizing creams may be need to keep the skin well moisturized.
- Do not be concerned if the lesions should become significantly darker within seven days, as this is quite a common occurrence and will settle within a few days after this period, if it does occur.
- Avoid all sun exposure and tanning beds if the treated area appears irritated.
Who Performs the Treatments?
The Dermatololgist and Registered Laser Nurse.