Basket Continue shopping “Vitamin B12 Test” has been added to your basket. Product Price Quantity Subtotal × Vitamin B12 Test £49.00 - Vitamin B12 Test quantity + £49.00 Coupon: Apply coupon Update basket Basket totals Subtotal £49.00 Shipping Free shipping: Royal Mail Tracked24: 1-2 business days [when ordered before 3.30pm]. Shipping options will be updated during checkout. Total £49.00 Continue