Aurion is a Dutch manufacturer specializing in high‑quality immunogold reagents and auxiliary chemicals for electron microscopy and immunocytochemistry. Their product portfolio includes conventional gold conjugates, ultra‑small immunogold conjugates, silver enhancement reagents (R‑Gent SE‑EM), and incubation buffer additives such as Aurion BSA‑c™. These solutions are designed to minimize background, improve labeling specificity, and deliver reproducible results across immuno‑electron microscopy, immunofluorescence, and immuno‑enzymatic techniques. Aurion also provides ready‑to‑use incubation buffers with long‑term stability, supporting reliable immunodetection workflows. Quasi‑S is the authorized distributor of Aurion products in Malaysia and Singapore, supplying laboratories with advanced immunogold labeling technologies that ensure precision, reproducibility, and breakthrough imaging results.