MySecretStash is an online shop specializing in rare, limited-edition collectibles and exclusive branded merchandise. Its catalogue brings together products from brands including Zushi, Players, SuperDope, Red Panda Express, Wonderbrett, and Mochi Melts. Shoppers can browse accessories, bags, T-shirts, tops, trays, and home items, with featured merchandise such as vinyl figures, shoulder bags, moodmats, rugs, pillows, badges, keychains, and apparel. The range includes collaboration and event-related pieces, including Complex Con and Zalympix exclusives, as well as limited-stock products.

The website offers online browsing and purchasing through a shopping cart, with account sign-in and search features. It advertises international shipping, secure checkout, and free shipping above stated order thresholds. Access to the site requires visitors to confirm they are at least 18 years old. MySecretStash states that its products are intended for lawful purposes, such as use with herbs, spices, and other legal materials, and places responsibility on customers to follow applicable laws. The store focuses on distinctive collectible finds that may be difficult to find elsewhere.