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Injectable Use BPC 157 is often discussed online in injectable form

Biotin, also known as Vitamin B7, is essential for healthy hair, skin, and nails, as well as energy metabolism and cellular growth

Its found naturally in animal products, but also added to certain foods and is available as an oral supplement or injection

Several other variables can influence how long the peptide remains active in a biological system

Some of Kennedy's friends and associates are among the biggest proponents, including self-described "biohacker" and "longevity expert" Gary Brecka, who sells peptide injectables, patches and nasal sprays through his website for $350 to $600 each