In TCA tattoo removal an acid ( trichloroacetic acid) is used to cause controlled inflammation of the skin. As the acid penetrates the skin it will break the tattoo ink into smaller particles. Over time these tattoo particles will come to the top of the skin and eventually get removed. TCA method of tattoo removal is a clinically proven method and is a good alternative to laser removal. The concentration of the acid will determine how deep the acid penetrates and how fast it can break the ink particles. Higher concentration of the acid can cause skin damage and scarring. Normally a 12-25 percent concentration is recommended. A search on the internet will reveal that you can even find acid with 100% concentration. This is actually not a cream but a liquid that needs to be applied with a q-tip. The TCA acid peel is even used for removing acne scars, wrinkles and other skin marks that are caused due to old age. Many tests have revealed a success rate of 85 % for this method. However you will not get the desired results by just using the acid one time. You will have to use it again and again after a peel cycle of 6 weeks. It will take about 6 weeks for the skin to grow back and heal properly after you use the acid once. Therefore you can start the second cycle only after 6 weeks. Always refer to the product documentation before using this method. Some people may be allergic to the acid and may develop scars therefore it is best to try it out on a small area of the skin before using it on the full tattoo. If you want to use this method from home yourself then you should read the product catalog properly and follow the instructions very accurately. Never use a product that has acid without following the exact instructions. Your skin is important you just can’t afford to take any chances. Adverse skin damage can put you in hospital bed for much longer so don’t be impatient any try things on your own. If you have any doubts about the TCA tattoo removal product then contact the support for the product and get all your clarifications before using it. You can even search the internet for more instructions about a product so that you don’t attempt things on your own. If you don’t get proper support from the product vendor then approach a dermatologist and get their recommendation before proceeding.