Expired makeup, like many other consumer products, often ends up in landfills. However, the lifecycle of these products is more complex than one might initially think. Let's delve into the journey of expired makeup, from production to disposal.

1. **Production:** The lifecycle of makeup begins with its production. Raw materials are sourced and processed to create the final product. This involves a combination of chemical and natural ingredients, which are carefully selected for their specific properties and effects on the skin. The production process also includes packaging, which often involves plastic and other non-biodegradable materials.

2. **Distribution and Sale:** Once the makeup is produced, it is distributed to various retailers, both physical and online. Consumers then purchase these products for use.

3. **Use:** The average shelf life of makeup varies depending on the product. For instance, mascara and liquid eyeliner typically last around 3-6 months, while lipstick and foundation can last up to a year. Powder-based products like blush and eyeshadow can last even longer, up to 2 years. During this time, the product is used and gradually depleted.

4. **Expiration:** Once a makeup product has expired, it is no longer safe to use. Using expired makeup can lead to skin irritation, infections, and other health issues. This is because over time, makeup can degrade and become contaminated with bacteria.

5. **Disposal:** Expired makeup is typically thrown away and ends up in landfills. Unfortunately, the packaging of these products often contains non-biodegradable materials, which can take hundreds of years to decompose. This contributes to environmental pollution and the growing problem of plastic waste.

6. **Environmental Impact:** The environmental impact of expired makeup is significant. Not only does the production process often involve the use of non-renewable resources, but the disposal of these products also contributes to landfill waste and pollution. Furthermore, chemicals from expired makeup can leach into the soil and water, causing further environmental harm.

To mitigate these impacts, it's important to consider sustainable practices such as recycling makeup packaging, buying less but higher quality products, and supporting brands that prioritize eco-friendly practices. Additionally, understanding and adhering to the shelf life of makeup products can prevent unnecessary waste and potential health risks.