A hormone made by four small glands in your neck that controls how much calcium stays in your blood, how your bones rebuild themselves, and how your kidneys handle minerals.
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Ulta Lab Testscheapest via Quest · seen 5mo ago | Quest | 5mo ago | $51.95 | order → |
| 2 | Instalab via Multi-lab (5) · seen today | Multi-lab (5) | today | $67 | order → |
| 3 | Jason Health via Quest · seen today | Quest | today | $145 | order → |
| Vitamin B12 | 16 retailers | $10 |
| Ferritin | 15 retailers | $9 |
| Magnesium RBC Test | 14 retailers | $8 |
| Calcium, Ionized | 14 retailers | $18 |
| Iodine Test | 13 retailers | $30 |
| Selenium | 12 retailers | $12 |
| Iron Test | 11 retailers | $13 |
| Zinc, Blood Test | 11 retailers | $11 |