As peptide research continues to evolve, 2025 brings new attention to the science of anti-aging compounds that target cellular repair, collagen renewal, and metabolic balance. This guide explores the most talked-about peptides shaping the anti-aging landscape from GHK-Cu and Epithalon to MOTS-c and BPC-157 while separating scientific evidence from marketing hype. Learn how these bioactive molecules may influence skin elasticity, mitochondrial health, and inflammation, and understand the potential side effects and limitations that come with their use. Whether you’re a researcher or an enthusiast, this in-depth overview provides a balanced look at the real potential and risks of anti-aging peptides in 2025.