Best stuff I have ever used!! I have always struggled with horrible acne, rosacea, scarring, and an uneven skin tone my whole life. I tried everything from drug store products all the way up to $300 prescriptions for acne and nothing worked for me until one of my coworkers introduced me to this! I use a dime size portion to cover my whole face at night and about 4-5 drops to cover my whole face during the day. (I use less during the day because it leaves a little bit of a tint to your skin and I don't want to look oily all day) I also put a moisturizer over the top of it at night. Within 2-3 days I noticed a HUGE difference!