A Vogel Calcium Absorption Formula - 400 Tablets A Vogel Calcium Absorption Formula Description: Bioforce exclusive A. Vogel formula containing Urtica Dioica (Stinging Nettle) and Silica, for symptomatic relief of minor bone pain from brittle bones. Bioforce: Symptomatically relieves minor bone pain from brittle bones. Symptomatically relieves calcium deficiencies Helpful for pregnant mothers Helpful for growing children Calcium Absorption Formula can also be beneficial as an addition to your calcium supplement program. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.