... low cost, good effect,PDT medical therapy equipmentskin care,skin rejuvenation, whiten and liften skinimprove blood vessel,circulation,good ... with three types of specific light source for treatment different skin problems. Function:1.Removal:Whelk, Macula, and Folliculitis2. ... easily switched6. 100% safety 7. No hurt to the skin cell, no side effect8. Simple operation, no need of professional ...