Vitamin D3 4000iu, 90 capsulesWhereas most Vitamin D3 supplements on the market are derived from the lanolin in sheeps wool, this high strength Vitamin D3 4000iu supplement has been plant sourced from lichen, providing a potent and easily utilised form, suitable for vegans, ideal to take 1 3 times per week as a convenient way to top up vitamin D levels. Naturally produced under the skin following exposure to sunlight, Vitamin D contributes to the maintenance of normal bones,