Can I do a 10% TCA peel 3 times and get a 30% result?

It doesn't necessarily work that way. I recommend getting a formal evaluation with a cosmetic dermatologist for the best treatment options for you.  Peels usually work best in combination with other treatments. I recommend lasers, microneedling/prp and skin care to give improvement. See an expert. Best, Dr. Emer

As Dr Emer says it does not work in that manner. It is not only the concentration but the method of peeling. It depends on pressure, percentage, number of coats, preparation of skin prior to the peel. Most experts do not neutralise the peel, as this is self neutralising. For the best results, see a certified Plastics or Dermatologist. All the best, and stay safe. Dr Davin Lim. Brisbane. Australia. 

Thanks for your question. It's a good one! Because 30% TCA peel without numbing can burn quite a bit. But, unfortunately, no you cannot get the same effect of 10% 3 times. The peel works by penetrating deeply into the skin and the depth is related to the percentage of TCA. You will only get a very superficial peel (almost nothing more than a glycolic acid peel) with 10%, except you will just get that 3 times and I doubt much benefit by doing it so close together. You don't get any extra depth of peel each time.

The best way to get a peel in the office is to go to a board certified plastic surgeon who does peel and uses nerve blocks. You do this by blocking the Supraorbital/Supratrochlear, Infraorbital, and Mental nerves as well as by using topical number cream. I also use a handheld fan for any burning that may cream through the nerve blocks that I've done, but find it is a very tolerable procedure this way. And, a very powerful procedure for skin health!