I have been taking Diatomaceous Earth ( Food Grade ) which contains silica. Silica is great for the skin, hair, connective tissues.
My skin has looked great since I have taken this. Each morning you put DE into a glass of water or juice and drink it. It cleans your intestinal out too. My nails have never looked so good. I get compliments on my skin all the time. Women 20 years younger than me have wrinkles all around their eyes, where mine are just starting to show.
Make sure you get the food grade Diatomaceous Earth, which can be found at most all health food stores. It has so many other uses too. Gardening, keeps the bugs away from the plants, pets, deworming both humans and animals, etc.
Virgin Coconut Oil is great for the skin too. Cod liver oil daily consumption is supposed to be great for the skin. It needs to be a very good brand. Green Pastures makes a great Cod Liver Oil that is promising too.