NATURAL VITAMIN D3 online store offers natural vitamin D3, which plays a very important role in our body: - supports the body's normal immunity - has a positive effect on the absorption of calcium and phosphorus - contributes to the normal level of calcium in the blood - contributes for proper tooth structure - supports proper muscle function. - contributes to the proper bone structure. Alina D3 vitamin comes from natural lanolin, which is used to obtain 7-Dehydrocholesterol - organic cholesterol derivative. 7-Dehydrocholesterol is a starting compound for the production of cholecalciferol. As a result of production processes, vitamin D3 is obtained in a similar way as in human - that is, by skin exposure to the sun. I cordially invite you to familiarize with the offer. AdamKo Vitality. I wish you a lot of health and vitality. Adam Kostrzewa