High Concentration. TCA 100% Ingredients: Trichloroacetic acid Volume: 1 fl oz (30 ml) Brand new, completely unopened. The seal on the lid is intact. (Although the product is shown out of the box in the image, the item shipped will be completely unopened and still in the box.) Includes a dropper (one dropper from the pink, blue, or clear options in the image will be included. The color will be chosen at random. If you have a preferred color, please let me know in the comments section after purchase.) The items to be sent are the box, one bottle of the main product, and one dropper. (The small items in the image are not included.) Shipping is free. I also have other TCA products for sale with different price points, concentrations, and volumes. Thank you.