Vitamin A
Non-returnable
Vitamin A
- Preparation InstructionsFast for 12 hours (no food or drink, except water) before sample collection. If you’re taking a supplement containing biotin (also called vitamin B7 or B8, vitamin H, or coenzyme R), commonly found in products promoting nail, skin and hair health, it is recommended that you wait at least 72 hours from your last dose before sample collection.
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Product Details
Used to test vitamin A levels. Individuals should abstain from alcohol for 24 hours prior to collection.
