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Description
Intramuscular (IM) injections bypass the gastrointestinal tract entirely, making them particularly effective when oral absorption is unreliable or when a confirmed deficiency requires prompt correction

This selective activity enables researchers to study lipid degradation and fat-store management without extensive hormonal effects

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Some people notice improved energy or less tingling within days, but meaningful relief of numbness or burning from neuropathy can take several weeks to months
