12 Tissue Salts In OneAll 12 Cell Salts in 1 is the foundational companion formula for the Constitutional Salt, Bridge Salts, & Symptom Paired Salts. The long term Biochemic approach is augmented by supplying the Bridge Salts corresponding to the months between birth retrograde to the time of conception, and Constitutional Salt as determined by the birth date. These are typically in greater biochemic demand as compared to the other salts..