Trichloroacetic Acid 25% Solution

I plan to do a 2:1 dilution for skin peel applications to make a 16.67% TCA solution. Do you recommend filtered water as the solvent or distilled water?

Filtered water can be used. However, deionized water or distilled water is always a better options. 

How long is a single bottle good for? Up to a year after opening?

It depends on the storage conditions. The shelf life is 2 years from the manufacturing date.  Once bottle is opened we cannot guarantee the shelf life. But it can be used for at least 1 year assuming it is stored at room temperature and away from contaminants.

Hello! I was wondering if I can use this for chemical peels on my face and body. Just making sure since you guys sell all kinds of peels for different uses, some not meant for medical/beauty use. I usually purchase TCA peels from Platinum skincare and know they add additional ingredients to their TCA peels (Purified Water, SD Alcohol 40, Propylene Glycol, Mandelic Acid, Lactic Acid, Sodium Lactate, Glycine, Fructose, Urea, Niacinamide, Inositol, Sodium Benzoate, Benzyl Alcohol, Menthol Crystals). I believe they do this in order to change the PH of the peel to be more “skin friendly” and have better peeling results, however I can definitely be incorrect. Because this is a pure solution of 25% TCA, will it still have good peeling results and is safe for skin? Thanks! Best regards.

Yes, the product is a pure Trichloroacetic Acid 25% w/v solution. It has no other ingredients in it. The ingredients mentioned are used in cosmetic formulation and there may be number of features those ingredients provide beside pH balance.
25% w/v Trichloroacetic Acid solutions have peeling effect and generally considered safe to use. Please note the peeling effect depends on the skin type, number of layers applied and the frequency of application. We also offer other concentration of Trichloroacetic Acid such as 12.5%, 50% and 85%.