D4u 10mL Oral Drops 5mg/mL – Vitamin D3 Supplement for Calcium RegulationD4u 10mL Oral Drops 5mg mL Vitamin D3 Supplement for Calcium Regulation D4u 10mL Oral Drops 5mg mL contain Cholecalciferol (Vitamin D3), an essential nutrient that plays a key role in calcium and phosphate regulation in the body. Adequate Vitamin D3 levels are critical for maintaining healthy bones, teeth, and muscles, and for preventing long term deficiencies that may lead to bone disorders. This supplement is specifically designed for individuals at