Your skin is the largest organ in your body. It protects you from pollutants, toxins and germs, prevents fluid loss, dehydration and regulates your body temperature. We all heard at some point that drinking an excessive amount of water daily will banish wrinkles and shrink pores, amongst other benefits that aren’t really scientifically proven.
Drinking more water won't necessarily mean that your skin will appear more hydrated, but it can help your body fight other factors that cause skin concerns such as lines, wrinkles and pigmentation. Proper hydration is essential for all aspects of health - skin health included! Water does help your complexion by allowing the entire body to effectively carry out the functions that flush toxins and keep fluids moving through your capillaries. Drinking enough water helps to improve circulation and toxin removal from the skin, making your skin look its best, and you don’t need to drink an excessive amount of water for this to happen.
Some people drink plenty of water and still have dry skin and others don't drink it that much and still have skin that looks relatively moisturised. How supple your skin looks have more to do with sebaceous gland density and skin-barrier function.
Dehydration and skin hydration levels do correlate only in extreme cases. The conclusion is, drinking enough water daily is very important for your overall health, but drinking more water isn’t going to help get rid of wrinkles or plump up your skin unless you are extremely dehydrated.