High absorption 532 nm treatments are preferred for smaller and more superficial vessels. Superficial and small-diameter vessels are most selectively treated with wavelengths that are strongly absorbed by oxyhemoglobin as the vessels can be heated to clinical response temperatures with minimal incident energy. However, high oxyhemoglobin absorption can limit the depth to which laser light penetrates into skin, making it difficult to treat large or deep vessels with these wavelengths.

Moderate absorption 940nm treatments are preferred for larger and deeper vessels. Less strongly absorbed wavelengths penetrate more deeply, and can more uniformly heat through larger diameter vessels. Higher fluences are used to overcome the lower absorption coefficient and successful treatments can be achieved with good selectivity. Of the near infrared wavelengths, 940nm is optimal since it has the highest oxyhemoglobin absorption coefficient for improved selectivity, reduced discomfort, and fewer side effects.

Advantages:

• 1. Complete: pulsed laser can penetrate deep into the skin vascular tissue, stimulate the laser beam is absorbed by hemoglobin, let hemoglobin solidify, make vascular tissue closed, completely achieve perfect spider vein removal.
• 2. No scars: 940nm/532nm laser can intelligently identify skin lesions, there isn't any impact on the normal skin tissue during the whole treatment, its non-invasive physical therapy, there will be no cut on the skin, combines with proper post-long care , will almost no scarring.
• 3. Fast and easy: only twenty minutes can finish one treatment,
• 4. Immediate result: After the 940nm/532nm laser treatment, large blood vessels will become smaller lighter, smaller vessels will disappear directly, the treatment effect is very significant.