How Long Does Unused Lipstick Stay Good?

Many of us have a collection of unused lipsticks that we're hesitant to throw away, hoping they'll be just as good as they were when purchased. But how long can you realistically expect lipsticks to stay useable if they're not used? The answer often depends on a variety of factors, such as the type of lipstick, the ingredients used, and how they are stored.

Factors That Affect the Shelf Life of Lipstick

The shelf life of an unused lipstick can range from a few years to several years, depending on the unique properties of the product and the conditions in which it is stored. Let's delve into the factors that can impact how long your lipstick lasts.

Type of Lipstick

Creamy or Liquid Lipsticks typically have a shorter shelf life, usually around 1 to 2 years. These formulations can dry out or denature over time, making them less effective and potentially more prone to bacterial growth due to their wet nature.

Matte or Long-Wear Formulas may last longer, up to 3 years, due to their drier and less prone to breakdown textures. These formulas often use ingredients that are more stable.

Storage Conditions

Proper storage is crucial for maintaining the longevity of your lipsticks. Keep them in a cool, dry place away from direct sunlight and heat. Exposure to extreme temperatures can cause the lipstick to melt, alter its texture, or deteriorate. Storing lipsticks in a car, which can fluctuate dramatically in temperature, is particularly detrimental.

Ingredients

The ingredients used in lipsticks significantly impact their shelf life. Lipsticks containing natural or organic ingredients without preservatives may have a shorter shelf life compared to those with synthetic ingredients that include preservatives to extend their use.

Packaging

Packaging also plays a role. Lipsticks in tubes or sealed containers are more protected from air and bacteria than those in open pots. Tubes offer better airtight sealing, which helps preserve the formula much longer.

Common Issues and Signs of Expired Lipstick

Given the above factors, it is not uncommon for lipsticks to show signs of deterioration over time. Here are some common indicators that your lipstick may no longer be safe or desirable to use:

Changes in Appearance: Lipsticks that appear cloudy, cracked, or have separated are often signs of deterioration.

Odor: A strong or off-putting smell can indicate that the lipstick has gone bad. Contrary to common belief, not all bad smell indicates a health issue; some chemicals used in cosmetics can give a slight odor.

Texture and Consistency: Lipsticks that feel dry, crumbly, or feel different from their original consistency should be discarded as they may contain harmful bacteria or have lost their efficacy.

Taste Test: If you're unsure whether your lipstick is still good, the most definitive test is to do a taste test. While this sounds unappetizing, it can reveal if the lipstick is contaminated. However, if it smells bad, taste it with the utmost caution.

Keep in mind that your sense of smell is often the first indicator. If something smells off, it's best to err on the side of caution and discard it.

For those who have lipsticks from decades past, there are often surprising results. Some lipsticks, like my 1980s lip, which was melted into an award shape, are still useable. Similarly, my late 1990s caffeinated lip-gloss and early 2000s Este Lauder lipstick are still fine, while more recent purchases didn't have the same consistency or quality.

Ultimately, the best practice is to check your lipstick regularly. If you notice any changes in the color, texture, or smell of your lipstick, it's best to discard it and purchase a new one to ensure your safety and enjoyment.