Cosmetic bottles that meet quality standards do not pose harm to the human body. The materials and components used in the manufacturing of cosmetic bottles are tested and comply with relevant standards and regulations, making them harmless to humans. However, some unscrupulous manufacturers may add toxic substances during the production of cosmetics, which can contaminate the bottles and pose a risk to health. To ensure safety, consumers are advised to purchase cosmetic products from brands with quality guarantees and obtain cosmetic bottles from authorized manufacturers. Cosmetic bottles are a form of packaging, specifically transport and storage packaging. Transport and storage packaging typically refers to the outer packaging designed to facilitate the transportation, storage, and sale of products, with primary considerations for protective, stable, moisture-proof, and waterproof factors to ensure the product remains intact and unspoiled during transit.

Cosmetic bottles come in various materials and shapes, commonly including glass bottles, plastic bottles, and metal cans, which usually have labels and instructions detailing the product name, ingredients, production date, and shelf life. Manufacturers of cosmetic bottles advise that due to the long-term storage and reuse nature of these bottles, the material and quality are typically quite important. The date on cosmetic bottles may not always be the production date. Depending on the brand and manufacturer, the date on the bottle may indicate either the production date or the expiration date. Therefore, when purchasing and using cosmetics, it's crucial to carefully examine the labels and instructions on the bottle to avoid using expired products.

Generally, the shelf life of cosmetics is typically around three years, but it may vary due to factors like ingredients and packaging. Additionally, the shelf life of unopened cosmetics is usually indicated on the packaging, while after opening, you should follow the time frame specified in the usage instructions. Therefore, it is recommended that cosmetic bottle manufacturers advise customers to carefully check the packaging and instructions before using the product to ensure safety and efficacy. At the same time, expired or deteriorated cosmetics should be discontinued immediately to avoid unnecessary harm to the skin.