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10.1523/jneurosci.1153-07.2007 J

If it's not, you may only need an injection every 2-3 months for life
Trial subjects reported improved skin hydration within 1-2 weeks, noticeable texture and firmness improvements at 4-8 weeks, and reduced fine lines with better skin resilience at 8-12+ weeks

and Johnson, T.L., "Using yeast genetics to study RNA splicing", Methods Mol Biol 1126: 285-298 (2014)

A lot of people ask me if BPC 157 is systemic, and the answer is yes, in line with current research
