Is the whole amount being absorbed in your skin?

Question

for instance if you were to use a 8oz bottle of lotion everyday, is the exact amount you rub into your skin being absorbed into your body, ultimately having the whole 8 oz into your body but not all at once, like over a period of time

Answer 1

No, your skin only absorbs a small amount.  The rest is rubbed off, evaporated off, and chemically altered in several ways with your environment.