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DSIP (Delta Sleep–Inducing Peptide) is a naturally occurring neuropeptide first isolated in 1974. It's best known for its potential role in regulating sleep, stress, and neuroendocrine function. Here's a clear breakdown of Healthy Aging / Energy https://d2j6dbq0eux0bg.cloudfront.net/images/130710251/products/814447740/5953814092.jpg Science 363 , doi:10.1126/science.aat8657 (2019) Select Quantity:1 Bottle

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