Key Takeaways TB-500 is a synthetic fragment of Thymosin Beta-4: It isolates the active repair sequence of a naturally occurring protein found in virtually every human cell, concentrating the tissue repair and anti-inflammatory signaling without manufacturing the full protein
Is oral or injection glutathione better
however, they were all conducted in the '80s and '90s, and the FDA described the results as "inconclusive and at best preliminary." Epitalon: This is another peptide that's promoted as a solution for insomnia

Flags theoretical pathologic angiogenesis potential: PMC12446177 Evidence Summary Preclinical: IBD/colitis models: High remission rates, restored mucosal architecture, improved barrier function Tendon repair: Accelerated healing, improved tensile strength, reduced fibrosis Neurovascular: Sciatic nerve protection, enhanced blood vessel growth in nerve tissue Human data (emerging): Interstitial cystitis pilot (2024, n=12): 10/12 complete resolution, 2/12 at 80% improvement IV safety study (2025, n=2): no adverse effects on cardiac, hepatic, renal, or glucose biomarkers Knee pain retrospective (2021, n=17): 91.6% reported significant improvement No large-scale controlled trials published Safety: No immunosuppression or hormonal disruption in available data 2025 systematic review (HSS Journal): recommends caution due to limited high-quality clinical evidence 2025 narrative review: flags theoretical pathologic angiogenesis risk Stable in gastric acid (oral administration viable) No observed toxicity at therapeutic doses in published reports Foundational Reviews Sikiric P, Seiwerth S, et al

Your skin could appear slightly brighter, more even-toned, or smoother
Your genes influence how you respond to GLP-1 therapy