Good question .It takes up to 4 weeks to see a result after a first treatment with PDT. A second treatment may be necessary in order to achieve the best results.
After photodynamic therapy, how long does the skin's purging process last?
Doctor Answers 2
It takes the skin 28 days on average to go through a full skin cycle. It usually takes 2 full skin cycles to see great changes in the skin. It is for this reason that most people wait 8 weeks to see the full benefit from a treatment of PDT. We often will treat people with 2 treatments of PDT spaced 8 weeks apart. We see great results with this treatment. Stay skintastic.
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