Our Guarantee


Thymosin Labs™ only sells premium quality animal performance supplements such as TB 500. All of our products are guaranteed to be of the highest quality and effectiveness.

30-Day Money Back Guarantee. We proudly stand behind our products with our 30-day money back guarantee. If you are unsatisfied with your purchase, return all unopened bottles within 30 days and we will refund your money. Custom bulk orders are not refundable.


99%+ Pure, Quality Made. Our animal supplements are of the highest quality, and we’ll happily provide HPLC and Mass Spectrometry analyses along with your order to verify our product’s purity. Our products are synthesized monthly and will remain 100% potent for over 18 months when kept frozen. Our products will also maintain 100% potency when stored at room temperature for up to 60 days.


Same Day Shipping. All orders placed before 11:00 AM EST Monday-Friday will be mailed that business day. Subsequent orders will be mailed the next business day. Purchases will be updated with a tracking number 24 hours after the mail date.


Purchase Risk Free. Be confident that you're buying only top quality supplements for your animal. We know that your time is too valuable to be wasted by buying low quality products.


Our Dedication to Quality: Veterinary TB 500 Supplements

At Thymosin Labs™, our products are produced using automated synthesizers as well as solution and solid-phase synthetic technology to offer premium quality, professionally manufactured animal performance supplements that exceed 99% purity, guaranteed. Headquartered in the U.S.A., Thymosin Labs ensures that no details are overlooked, offering animal supplements that are of superior purity and quality. Unfortunately, inferior quality veterinary supplements are often adulterated with additives or cheap fillers that can drastically reduce the product’s effectiveness. Make sure that you don’t waste your money on a cut-rate product. Buy only premium quality, additive-free veterinary supplements for your animal from Thymosin Labs™. Read more about our company.


Premium Quality Animal Supplements

Thymosin Labs™ offers the highest quality animal performance supplements and is proudly headquartered in the United States. Synthesized in cGMP certified facilities, our products are purified multiple times, verified three times via HPLC testing and exceed the highest global quality standards. Further, our staff always ensures that your order arrives swiftly at the peak of quality and potency. Unquestionably, our professional clients demand an exacting standard of quality when buying online. If requested, any order will be mailed with a detailed HPLC (High Performance Liquid Chromatography) Purity Analysis Report. Our products are manufactured on a monthly basis to guarantee the utmost possible potency and quality.


Our Promise To Our Customers

As a leader in animal performance supplementation, our company always puts the customer first. This promise covers not only the superior quality of our products, but also how we deal with you, the customer, in every aspect of the order process. That's why we strive to maintain a standard of excellence in customer service that few companies in any field can match. From responding promptly to order inquiries to shipping every order within one business day (and often same day for orders placed before 11 a.m. EST), our company is absolutely dedicated to fulfilling all of our customers' needs. Have a question or comment? Feel free to contact us today.