Bottom refill perfume bottles are typical high-standard eco-friendly cosmetic packaging materials, fully compliant with international sustainable packaging standards and global environmental protection policies such as EU EPR and carbon neutrality. First of all, the core advantage is reusability. Different from disposable perfume packaging that generates a large amount of plastic waste after single use, bottom refill bottles can be reused for a long time after repeated filling and cleaning, greatly reducing the consumption of disposable packaging materials and plastic waste emissions. Secondly, all raw materials of the product are environmentally friendly and recyclable. The glass bottle body, aluminum alloy shell and stainless steel pump core can be completely recycled and reused after the end of the product life cycle, without producing non-degradable garbage. In addition, all accessories adopt food-grade non-toxic and harmless materials, without harmful chemical components, which will not cause pollution to the environment and human body during production and use. The glue-free assembly process avoids volatile organic compound pollution. For perfume brands, adopting this eco-friendly packaging can not only meet the mandatory environmental protection regulations of European and American markets, avoid policy penalties, but also shape a green and sustainable brand image, cater to modern consumers' environmental consumption concept, and effectively improve market acceptance and product premium.