Our bodies are around 60% water. Despite the fact that water lacks any calories or organic nutrients, it is vital for all forms of life.
Water is a major constituent of various body parts and is present in the following amounts:
Brain and heart – 73% water
Lungs – 83% water
Skin – 64% water
Muscles and kidneys – 79% water
Bones – 31% water.
Water is a vital component that ensures the proper function of the gastrointestinal tract. Sufficient water intake improves the body’s ability to break down food, hence promoting a smooth-functioning digestive system. It prevents constipation as well as reduces gas and bloating.
When the body has inadequate water supply, the colon absorbs water in an effort to hydrate the body. This often results in an altered fluid balance in the gut and constipation.
While everyone says drinking water is important for overall health and doctors across the board recommend more water and less caffeinated or sugar-packed beverages, there's a lack of research actually proving water consumption impacts skin hydration
Zeichner says :"It's actually a myth that drinking water will help keep your skin hydrated". "There's no data to support the idea that drinking a glass of water helps hydrate the skin. On the other hand, there's no data to show that drinking fewer than eight glasses of water per day is actually harmful. The only caveat is that if you are severely dehydrated, it will take a toll on your skin."
So I would say that drinking water cannot harm you, it can only do you good, regardless of maybe not influencing your complexion.