Founded in Germany in 1863, Bayer is known largely for the Bayer? Aspirin brand; Bayer AG markets a variety of consumer healthcare solutions under the trusted Bayer? name along with other highly respected brands. Citracal? is part of the Bayer HealthCare brand portfolio; calcium citrate is the active ingredient in the dietary supplement. Calcium is an essential mineral needed for bone health; while our bodies need calcium, they do not produce the mineral. We get it from the foods we eat every day but most people don?t get enough calcium through diet alone. The Citracal? dietary supplement product line includes calcium supplements with a high level of vitamin D, additional bone minerals and delicious gummies. Select products include calcium citrate + D caplets; calcium + D3 slow release tablets; magnesium enhanced calcium supplement coated tablets; petite calcium supplement coated tablets and more.