Pay in 4 interest-free payments of $6.75 Learn more
Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Subsequently, patients may be able to convert to oral replacement with close monitoring
Last reviewed: May 12, 2026 Last updated: May 12, 2026 Written by: Jay Hastings , CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
Amazing product & simple, straightforward process to order
Intramuscular injections typically produce early haematological responses within 34 days, whilst neurological symptoms may begin improving within 12 weeks
Because it bypasses digestion, the nutrients enter the bloodstream directly, leading to more efficient nutrient utilization
US$ 27.77
US$ 25.43
US$ 23.19
US$ 20.26
US$ 29.57
US$ 26.94
