What is the best supplement to take for your skin (dry skin)?

If you use olive oil very sparingly, it does wonders for your skin and hair. Mix just a drop in with your normal, oil free moisturizer. Make sure it is extra virgin olive oil and like I said, use very sparingly, or you will become too oily. If you put it in your hair, do it while it is wet, and put just a drop or two on your comb, and comb it though. This is very common remedy among Greeks.