Choosing eco-friendly lip serum packaging involves considering several factors, including the type of material, its recyclability, and the manufacturing process. Here are some steps to guide you:

1. **Material Selection**: Opt for materials that are biodegradable or recyclable. Glass and aluminum are excellent choices as they can be recycled indefinitely without losing their quality. Bioplastics, made from renewable biomass sources, are another good option.

2. **Minimalist Design**: A minimalist design not only looks sleek and modern but also uses fewer materials, reducing the overall environmental impact. Avoid unnecessary components like extra layers of packaging or decorative elements.

3. **Sustainable Manufacturing Process**: Research the manufacturing process of the packaging. It's important to choose a supplier that uses eco-friendly practices, such as using renewable energy sources or minimizing waste.

4. **Refillable Containers**: Consider packaging that can be refilled. This encourages consumers to reuse the container, reducing the demand for new packaging.

5. **Size Appropriateness**: Choose a packaging size that is appropriate for the product quantity. Over-sized packaging can lead to waste.

6. **Labeling**: Use eco-friendly inks and adhesives for labeling. Also, provide information about how to properly dispose of or recycle the packaging.

7. **Certifications**: Look for packaging that has been certified by recognized environmental organizations. This can provide assurance that the packaging meets certain sustainability standards.

Remember, the goal is to minimize the environmental impact while still providing a functional, attractive product. It's a balance between aesthetics, functionality, and sustainability.