The positive effects of the treatment will be noticeable immediately  after the first treatment, but the best results will be seen after 4 weeks. Your skin will continue to tighten over the next 8 weeks, giving a further tightening and lifting effect. 

Plasma Fibroblast is more than a simple tightening treatment, skin is actually removed, so the effects should last as long as they would with invasive surgery. Like all surgical and cosmetic procedures, the effects of plasma treatment are not entirely permanent as it does not stop any further ageing. But, the positive results should last you years depending on the area treated.