säilyvyystestin

The term säilyvyystestin refers to a systematic evaluation of a product's shelf life or long‑term stability under specified storage conditions. It is commonly applied in the food, pharmaceutical, and cosmetic industries to ensure that items maintain their safety, quality, and efficacy over time.

In a typical säilyvyystestin, samples of the product are prepared in their final form and sealed under normal usage conditions. These samples are then stored in a controlled environment that may include variations in temperature, humidity, light exposure, and oxygen levels, depending on the product's characteristics and intended storage conditions. At predetermined intervals—ranging from days to years—analyses are performed to assess physical, chemical, microbiological, and sensory attributes. Common tests include activity assays for active ingredients, pH, moisture content, color, texture, microbial load, and the presence of degradation products.

The data obtained from the säilyvyystestin are used to establish an official expiration date, recommend storage guidelines, and inform regulatory submissions. The test can also be adapted to investigate potential improvements in formulation or packaging that could extend shelf life. By providing objective evidence of product stability, the säilyvyystestin supports consumer confidence, compliance with safety regulations, and overall marketability.