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[9] DSIP, Anging & Lifespan Researchers investigated whether the DSIP-containing preparation Deltaran could influence aging, lifespan, and cancer development in female mice

"The promoting effect of pentadecapeptide BPC 157 on tendon healing involves tendon outgrowth, cell survival, and cell migration." Journal of Applied Physiology , 2011

Generally, it is a result of insufficient intake of foods containing Vitamin B12 or the body's inability to absorb it from the food you consume

Cant comment on which did what but I definitely feel healthier
