I've never heard of fish oil being able to increase the length of hair before, but using Vegetable or Olive Oil does. You would want your hair to be well maintained and groomed properly by shampooing and conditioning at least 3 times a week, cutting split ends and putting it up in a bun or braided when going to sleep or not going anywhere. Also, whenever you're just at home, you can always put Veggie or Olive oil on the ends evenly and putting it up for it can't dry up easily and rehydrate the hair. By occasionally doing this, your hair will grow faster and longer.