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doi:10.1186/s12933-014-0129-4
Why Site Rotation Matters For long-term injection success, site rotation is critical
Though vitamins can be found naturally in foods, some body processes make them hard to absorb, and deficiencies can occur
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If users saw no change in the first 14 days, they routinely bumped up their dose, switched injection sites, or questioned if their peptide was real
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