My uncle and I have been using this product for months and it has helped us in both different ways. For him, this Nulavance product showed improvement in their joint pain and plus me this product showed an increase in the health of my immune system. The ingredients that are used in the product which is shark liver oil is very beneficial and does not contain any kind of harmful effects. To get more info visit here: http://www.singaporesupplements.com.sg/nulavance-singapore/