igf 1 lr3 testosterone IGF-1 LR3: muscle growth, or just hype? A peptide often mentioned in muscle growth circles — but what does the science actually say about IGF-1 LR3? -1 stands for Insulin Growth Factor IGF-1 LR3 - Phoenix Peptide
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doi: 10.1016/j.cmet.2006.07.006

conducted high-performance liquid chromatography (HPLC)tandem mass spectrometric (MS/MS) analysis on peptides derived from histones in MCF-7 cells and surprisingly discovered a mass shift identical to that induced by the addition of a lactyl group to lysine residues [3]

[PubMed] Abhijit Basu A, Dvorina N, Baldwin W, Mazumder B

Mitochondrial GSH Systems in CA1 Pyramidal Cells and Astrocytes React Differently During OxygenGlucose Deprivation and Reperfusion. ACS Chemical Neuroscience 9: 738748
