THE HEALTHSPAN WAY: Here's something you may not know – Not All Supplements Are Created Equal. There can be considerable differences in product quality, purity and sustainability. Healthspan strive to bring you the most innovative solutions for maximum benefit: that's just The Healthspan Way. INNOVATIVE SOLUTIONS, BACKED BY EXPERTS: Healthspan has 25 years' experience working closely with trusted research partners and experts. They thoroughly test and perfect their products with in-house doctors and nutritionists to bring you the latest developments in nutritional supplements. QUALITY INGREDIENTS FIRST: Healthspan work harder to seek out the best-quality ingredients for their supplements. They source and manufacture their range, ensuring optimal purity and quality along the way so whether it is faster-acting, better-absorbed, filtered for optimal purity or simply contains more active ingredients, they're confident you won't find better quality. WHY CHOOSE HEALTHSPAN’S VITAMIN D3? Healthspan’s Super Strength D3 contains exclusively vitamin D3, which is the form of vitamin D produced naturally in the body in response to sunlight. Research shows that optimum intake levels of vitamin D are now far higher than originally thought, so Healthspan have included 25µg (1,000iu) of natural source vitamin D3 into each daily tablet. WHAT IS VITAMIN D3? Super strength vitamin D3 tablets for healthy bones, teeth, muscles and immunity. Vitamin D contributes to the absorption of calcium in the body, playing a key role in bone and teeth health. It supports muscle function and the immune system. In the UK between October and March, the sun isn’t strong enough for bodies to make Vitamin D alone, and national research recently revealed that one in five of people have low levels, so supplementation is important.