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Description
Research on intranasal peptide delivery indicates that molecules up to approximately 6000 Da can be absorbed, placing TB-500 within range but potentially at lower efficiency than smaller peptides like BPC-157

This guide sets out how they differ in origin, mechanism and research focus
A top-selling product by Integrative Peptides, BPC-157 Immediate Release, provides 500 mcg of a strong, widely effective peptide in a 30 or 60-capsule bottle

IGF-1 is a primary mediator of growth hormone (GH), with growth-promoting effects on most cells and tissues including skeletal muscle, cartilage, bone, liver, kidney, nerve, skin, hematopoietic, and lung [1]

Many protocols use them together for enhanced results
