Bayer Redoxon Extra - Vitamin C & Zinc effervescent tabs

It contains 1000mg (1gr) of  Vitamin C (ascorbic acid) and 10mg of Zinc.

Zinc :

Zinc is responsible for a number of different functions in the human body and it helps stimulate the activity of 100 different enzymes.

Treating the common cold :

Zinc lozenges were found to shorten the duration of common cold episodes by up to 40% in a study published in the Open Respiratory Medicine Journal. 

Affecting learning and memory

Research conducted at the University of Toronto and published in the journal Neuron revealed that zinc has a crucial role in regulating how neurons communicate with one another, affecting how memories are formed and how we learn. (source : www.medicalnewstoday.com)

Vitamin C (ascorbic acid) : The benefits of vitamin C may include protection against immune system deficiencies, cardiovascular disease, prenatal health problems, eye disease, and even skin wrinkling. "Vitamin C has received a great deal of attention, and with good reason. Higher blood levels of vitamin C may be the ideal nutrition marker for overall health," says study researcher Mark Moyad, MD, MPH, of the University of Michigan. "The more we study vitamin C, the better our understanding of how diverse it is in protecting our health, from cardiovascular, cancer, stroke, eye health [and] immunity to living longer." source : http://www.webmd.com/kathleen-m-zelman. 

More info on Vitamin C : http://en.wikipedia.org/wiki/Vitamin_C