The essential nutrients are all 102 minerals (calcium, potassium, sodium, magnesium, zinc, iron, etc.), vitamins, amino acids, B-vitamins, etc. For the skin problem, I suggest performing the Full Body Cleanse for starters. Apply Oxy-Oil externally to the face, especially after a good facial wash and scrub.
Full Body Cleanse
Oxy-Oil (8 oz)
Full Body Cleanse Companion (EBook)
Oxy-Oil (4 oz)