also known as Retinol in Feed
A fat-soluble vitamin that supports vision, immunity, and cell growth
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Jason Healthcheapest via Quest · seen today | Quest | today | $40 | order → |
| 2 |
QuestDirectdirect via Quest · seen 1mo ago |
| Quest |
| 1mo ago |
| $49 |
| order → |
| 3 | LifeExtension via Life Extension Lab Tests · seen today | Life Extension Lab Tests | today | $52 | order → |
| 4 | HealthLabs seen today | — | today | $58 | order → |
| 5 | LabCorp OnDemanddirect via LabCorp · seen 1mo ago | LabCorp | 1mo ago | $59 | order → |
| 6 | Instalab via Multi-lab (4) · seen today | Multi-lab (4) | today | $78 | order → |
| 7 | True Health Labs seen 1mo ago | — | 1mo ago | $209 | order → |
| 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 |