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doi: 10.3389/fphys.2018.00477 13
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This structural modification significantly reduces its affinity for IGF binding proteins (IGFBPs), increases the free concentration, and enhances its biological activity by more than three times compared to natural IGF-1
One of the reasons glutathione is so popular in skin care is its ability to brighten and even out skin tone
doi: 10.1242/dev.200750 206 SatarkerS.BojjaS
