also known as 5-Methyltetrahydrofolate/Folate in Serum or Plasma
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Goodlabscheapest via Quest · seen today | Quest | today | $6 | order → |
| 2 | Goodlabs via LabCorp · seen today | LabCorp | today | $17 | order → |
| 3 | Goodlabs via BioReference · seen today | BioReference | today | $19 | order → |
| 4 | Ulta Lab Tests |
| Vitamin B12 | 16 retailers | $10 |
| Magnesium RBC Test | 14 retailers | $8 |
| Ferritin | 14 retailers | $9 |
| 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 |
| Quest |
| 5mo ago |
| $27.95 |
| order → |