ALL purchased from Whole Foods! (Bentonite Clay can also be purchased online) I use ACV due to its antimicrobial properties. Tea tree oil also assists in treating and preventing acne.STEP 1: Add 2-3tbsp of clay to plastic bowl STEP 2: Add small amount of ACV or water (only adding enough for a paste-like consistency) STEP 3: Mix until paste forms adding 1-2 drops of tea tree oil (optional)Leave on for approx. 10mins or until clay begins to dry (you will feel a cooling sensation and almost a slight pulsation as the clay dries on your face.) Lastly, rinse off with warm water. 😉This mask can be very drying so be sure to moisturize right after! Here are my faves: Clinique Dramatically Different Moisturizing Lotionand Ole Henriksen Pure Truth Activating Oil.