It is like claiming that the lungs suffer from excess oxygen, or the blood has an excess of red cells. (healthwyze.org)
Since oxygen is generally quite reactive and toxic biochemically, this was an early way to safely get rid of excess oxygen created by photosythesis in primitive organisms. (psychologytoday.com)
According to Sakara, this water's creators, «Chlorophyll... floods your body with excess oxygen to improve circulation and encourage rapid cell rejuvenation, boosting your energy and supporting your body's natural healing abilities. (mindbodygreen.com)