I love jojoba oil! I have had dry, sensitive skin for as long as I can remember and have gone through drugstore brand moisturizers to super fancy ones that would just irritate my skin, cause breakouts, and did nothing to help the dryness. In 2009 I was desperate for relief--my acne was worse than it had ever been, skin redder than a tomato and drier and flakier than a box of corn flakes. After having read hundreds of rave reviews right here on Acne.org, I shelled out ten bucks for a bottle of jojoba oil and never looked back.
Within the week I felt like I had a new face. I could open my mouth, smile, and move my eyebrows without getting flakes everywhere or feeling like I was turning into the Joker. Jojoba oil is one of the best products that has ever entered my life and that's no joke. I'm currently on Accutane and even now this stuff manages to keep my skin soft and moisturized.
It did not do anything to prevent or get rid of my acne, but I wasn't expecting it to do that. I bought this as a moisturizer, not as a cure for acne and I got my money's worth and more. Like some other people have said, jojoba oil can be slightly comedogenic and might not be ideal for everyone. I do think it's worth a shot, though.