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Trachy, R (1988)

No formal human safety studies have been completed

This method was noted for its pain-free and well-tolerated nature compared to intramuscular (IM) injections (3)

Liposomal delivery ensures maximum bioavailability of this supplement

What Research Can and Cannot Tell You Human DSIP research exists, but it is limited and not enough to create a reliable dosing standard for everyday sleep problems

What to consider if your results are out of range: If you're low in vitamin B12, you can incorporate B12-rich foods such as clams, mackerel, salmon, beef, dairy, or nutritional yeast into your diet, but you may still need to supplement