Flax Oil is the best alternative for fish oil, which is not sustainable as is flax oil. I tried several brands before I found Barlean's, and I have found it to be the most effective.
I was advised to take this by a dermatologist for mystery acne (at 49 years old!). When I stop taking it my skin breaks out like crazy. I think it helps with wrinkles and acne so it's a double blessing! I take three at bedtime.