Big Boy Gains.
Built in Tucson.
Two best friends. A shared ambition. A research catalog with clear product information and documentation within reach.
Behind BBG Peps.
Big Boy Gains was established in 2026 in Tucson, Arizona, by two best friends who wanted to build something of their own.
BBG Peps is the Big Boy Gains research division. Our aim is to make the catalog straightforward to explore: clearly listed quantities, product forms, pricing, and access to the supplier-provided documentation available for each product.
We’re consistently adding to the catalog and reviewing product information before new listings go live. If you’re looking for a product we don’t currently carry, contact us about pricing and availability.
Explore the research catalog →Contact the team.
Questions about a listing, documentation, availability, or an existing request? Email us directly.
bigboygainz520@gmail.comBased in Tucson, Arizona. Please include the product name or your order/request reference so we can find the right details.
Know what the documentation shows.
The catalog includes two supplier-provided analytical reports. Those results describe the submitted samples; they have not been independently authenticated here or matched to current Big Boy Gains inventory.
Each bottle comes in an individual single-vial box with a serialized tamper-evident seal. The serial lookup confirms whether a number is registered. It does not independently authenticate the contents.
From request to delivery.
Add products to your cart, enter your contact and mailing information, accept the research-use agreement, and submit your payment-link request. A payment link will be emailed as soon as possible. Submitting a request does not complete payment.
Shipping is free through USPS to all 50 states, typically 3–5 business days from Tucson, Arizona. International shipping is not available.
Research peptide purchases are final. If your order arrives damaged, email detailed photos of the shipping packaging and Big Boy Gains packaging within 3 business days of delivery. Include your full name, mailing address, and original order number. Use Damaged Order – [your order number] in the subject.