You Guys should just stick to Herbals and healthy eathing. I've been drinking Organic Nettles Tea and Organic Horsetail tea for the past 6 months and my hair looks more fuller then ever and very healthy. I took viviscal for about 7 months...i think it worked but i'm seeing better results with the herbal infusions, tea. You can also use the teas as hair rinses... works very well. I also take flaxseed oil which improves the texture of your hair.
Also get lots of rest and eat lots of leafy veggies, whole grains, fresh nuts and seeds

one more thing.....Viviscal is way to expensive.....Peace