:)........take it from someone who knows.......
None of them work...........:D
You girls are so gullable..you fall for the marketing......:(
ask a dermatologist, they will tell you.......
just like other organs of our body........skin being the largest organ in our bodies....
gets its nourishment from what we eat.....peroid.
if the skin could absorb nourishment from its surface then we would not need a stomach............get it?