Unveiling the Science of the Open Jar Symbol - How We Determine the Shelf Life of Customized Lip Gloss
When you reach for your favorite lip balm/lip gloss, you might have noticed a small symbol on the packaging – an open jar with a number and the letter 'M.' This simple icon indicates the shelf life of your novelty lip gloss or lip balm. Have you ever wondered how this symbol is determined and what testing lies behind it? As a leading customized lip gloss and lip balm manufacturer, we will briefly explain the science behind the open jar symbol.
Stability Testing
Once we've crafted the customized lip gloss formulation, our products undergo rigorous stability testing. Stability testing is a comprehensive evaluation of the product under various conditions to simulate real-world scenarios. We subject our customized lip glosses to different temperatures, humidity levels, and light exposure to mimic the environmental factors they might encounter during their lifecycle.
During stability testing, we periodically check the tested samples for physical, chemical, and performance characteristics. If the changes are within our company's testing regime, they pass stability testing meaning they are safe when they reach the stores and customers. Stability testing assumes higher temperatures speed up aging reactions. A rough guideline is that a sample stored at 45°C for 12 weeks means it should be stable at room temperature for two years. While not precise, it works well enough for cosmetic products.
This phase is critical for assessing how the customized lip gloss responds to stressors and helps us understand the potential changes in color, texture, scent, and overall performance. The goal is to ensure that the product remains safe, effective, and visually appealing throughout its intended shelf life.
Challenge Testing for Preservatives
Preservatives play a pivotal role in preventing the growth of harmful microorganisms in cosmetics. To determine the effectiveness of the preservatives in our customized lip gloss, we conduct challenge testing. This involves inoculating the product with a known concentration of bacteria, yeast, and mold to challenge the preservative system.
The challenge testing helps us ensure that our preservatives can effectively inhibit the growth of microorganisms that could compromise the product's safety. By conducting these tests, we can confidently assign a shelf life to our customized lip glosses, knowing that they will remain free from harmful contaminants.
Conclusion
The open jar symbol on your customized lip gloss is not just a visual cue; it's a result of meticulous formulation, rigorous testing, and a commitment to delivering a product that not only enhances your beauty but does so safely. At Ni Hau, our dedication to quality assurance ensures we provide a reliable guide to your customized lip gloss's shelf life.
If you ever have questions about our testing processes or the shelf life of our customized lip gloss products, please don't hesitate to reach out to our sales team. We're here to make sure your lip gloss experience is as enchanting as it is safe. Happy glossing!
Ni Hau Actual Stability Testing Recording Chart
Everything you need to know about a lip balm/lip gloss's shelf life