What is the difference between a Skincare Complex and a Cream or Moisturizer?

If they are different, could you use the complex in place of the moisturizer if it contains vitamin E and fatty acids?What is the difference between a Skincare Complex and a Cream or Moisturizer?
Hi skin care complex contains numerous different ingredients and treatments within the one product. For example they contain a blend of different ingredients such as Aloe Vera Gel, Witch Hazel %26amp; Rosemary and Green Tea Extract, Soy Protein, Kelp Powder, Vitamin E, Vitamin C, Antioxidents etc.The main difference is, skin care complex's are more sophisticated and more advanced, if depends what you want from your skin cream, if you just want a something to make your skin soft then just go with a moisturizer but if your looking for skin healing, anti ageing etc then you will need a mre advanced 'complex' skin care regeime. Hope this helps!!