Below is my current list of vetted vendors. I regularly review companies before adding them, and I only recommend sources that I've personally evaluated. You can always find the most up-to-date vendor list, along with current sales and promotions, at: https://hacksmithspeptalk.com/products Use code HACKSMITH whenever possible. It is generally the discount code that provides the maximum available savings at any given time. RUO Generally one of the best-priced sources available. Offers 7x testing on select products and carries a broad variety of compounds, including some that are difficult to find elsewhere. https://ruo.bio/?ref=hacksmith Atomik Labz Excellent overall selection, competitive pricing, frequent sales, and fast shipping. https://atomiklabz.com/aff/17/ During 25% off sales, use code HACKSMITH25. Peptira Great pricing, frequent promotions, and an easy ordering system for 3-packs, 5-packs, and 10-packs. Fast shipping and also ships to Canada. https://peptira.com/?ref=hacksmith Solution Peptides Sister company to Atomik Labz. Similar product quality, pricing, sales, and shipping experience. https://solutionpeptides.net/aff/34/ During 25% off sales, use code HACKSMITH25. AminoWell Good company with competitive pricing and a solid overall selection. https://aminowellusa.com/?ref=kcrqnltl Bulk Peptides Essentially the bulk (10-pack) version of RUO's product line. Among the best pricing available if you're purchasing in volume. Access Code: HACKSMITH https://bulkpeptides.com Strate Labs Currently winding down operations. Significant discounts are available while inventory lasts. Expected closure date is July 1, 2026. https://stratelabs.com Limitless Biotech Probably the broadest selection available. Pricing tends to be higher than most competitors, but if you're looking for something uncommon, there's a good chance you'll find it here.