When it comes to the internal effort to look good there are a number of particularly important things that are decisive to the areas of your body with the most importance to your looks just as is the case in external body care Your skin connective tissues hair and nails

What is the correctly punctuated version of this sentence?
When it comes to the internal effort to look good, there are a number of particularly important things that are decisive to the areas of your body with the most importance to your looks - just as is the case in external body care: Your skin, connective tissues, hair, and nails.