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It provides a convenient alternative for researchers investigating intranasal peptide delivery and experimental administration methods

Many energy drinks, protein bars, and meal replacement shakes contain high doses of B12 (sometimes 2,000 to 5,000% of the Daily Value per serving)

Safety data in humans are restricted to short-term topical or local use with mild adverse reports

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Regular B12 injections may be recommended for sustained benefits

The user gets distracted, skips an area, presses too hard on others