"Lightweighting" has become a popular industry term, describing the practice of reducing packaging weight by reducing the amount of materials used in production. Daao Cosmetics OEMs are seeing increasing interest in lightweighting for eco-friendly cosmetics. Lightweight packaging consumes less raw materials and energy to produce, requiring less fuel for transportation, addressing environmental and sustainability concerns.

Lightweighting is most commonly applied to plastic bottles, jars, tubes, and caps. Lightweight plastic packaging requires less resin during the injection molding process. High resin prices are a major factor driving the growing interest in lightweight packaging among beauty companies. For organic and natural cosmetics manufacturers, lightweighting can significantly contribute to their pursuit of "more sustainable" packaging claims.

However, lightweighting plastic bottles often requires considerable engineering design to ensure the reduced amount of resin is properly distributed and achieves a consistent wall thickness. Experts emphasize the importance of stability testing for plastic packaging. "Ultimately, eco-friendly cosmetics manufacturers have the responsibility to ensure that their products are shelf-stable and process satisfactorily in new containers."

When deciding whether a package can be lightweighted, test each product and package on a case-by-case basis to see if it’s a good solution. There are no universal guidelines, as every product has different requirements.