Elasticity Calc Fluor is present on the surface of bones, in the enamel of teeth and in the elastic fibres of the skin and blood vessels. It is responsible for all the elasticity within the body – deficiencies can lead to varicose veins, over relaxed organs, hardened glands, stretched ligaments. NB Calc Fluor – Calcium Fluoride should not be confused with Sodium Fluoride which is used for fluoridating water supplies.