Wikipep is a peptide information and research resource presenting itself as a comprehensive encyclopedia. Its library includes more than 345 articles on research peptides, with coverage of mechanisms of action, available clinical data, safety profiles, and, for some compounds, dosing protocols and reconstitution guidance. Articles and guides are organized by topic, including weight loss and GLP-1 medicines, growth hormone, healing and tissue repair, skincare, cognitive research, longevity, antimicrobial activity, cardiovascular function, and immune regulation. The site also provides peptide comparisons, an alphabetical index, community resources, FAQs, and general information about its policies and disclaimers.

Alongside its educational content, Wikipep features Vial Dex, a free peptide calculator offering tools for vial reconstitution, syringe dose conversions, peptide blend calculations, multi-vial planning, and nasal spray concentrations. The site also advertises community-powered research peptide sourcing through group-buy kits, with listed products such as retatrutide, tirzepatide, KLOW blend, and tesamorelin. It states that batches receive third-party certificate-of-analysis testing and promotes a 14-day trial for this sourcing service.