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b12 liquid injectable Create a Vitamin Self-Injection Kit · PA Relief intramuscular b12 injection needle Full/Deposit:Deposit Storage Store at controlled 510K#: K162081

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It may turn from red-purple to blue-gray over a few days, eventually leading to skin breakdown in 3-5 days

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It is also worth addressing the broader context: nutritional deficiencies, including B12 deficiency, can contribute to fatigue that makes physical activity harder

Storage Store at controlled temperature between 2° and 30°C (36° and 86°F)