igf-1 lr3 vs igf-1 des comparison bodybuilding LR3: muscle growth, or just hype? A peptide often mentioned in muscle growth circles โ but what does the science actually say about LR3? IGF -1 stands for Insulin Growth Factor ๐ ๐ฑ๐ฒ๐ฐ๐ถ๐ฑ๐ฒ๐ฑ ๐๐ผ ๐๐ฎ๐ธ๐ฒ ๐ฎ
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