Aztec Secret Indian Healing Clay is a deep pore cleansing facial, hair and body mask. Shrink-wrapped with a non-tear Calcium Bentonite Clay security sticker on the lid. Important Note 2: For external use only. Please conduct a forearm skin patch test prior to facial use to test for allergic reactions or sensitivity. Works best when mixed with Apple Cider Vinegar. Important Note: Do not leave clay mask on skin longer than 5-10 mins for sensitive skin; this will reduce redness/drying. Slight redness of skin is normal and will usually disappear in about 30 mins. Cleopatra used clay from the Nile River and the Arabian Desert over 1800 years ago, as part of her beauty ritual. German and roman spas have been using clay packs and treatments in the spas they built 4,000 years ago. Many of these spas still exist and use clay even today. Aztec Secret Indian Healing Clay is calcium bentonite clay harvested from Death Valley, California, where it is sun-dried for up to six months in temperatures