Glass Supplement Bottles vs Plastic: Why Glass Wins | Moodeys

Most supplement bottles are made from HDPE or PET plastic. Research shows these leach BPA, BPS, BPF phthalates, antimony and microplastic particles into their contents, particularly under heat, UV and oxygen exposure unavoidable in warehousing and shipping. A 2024 Environmental Science and Technology study found measurable plastic-derived contaminants in supplement powders stored in HDPE containers for just 12 weeks.

Moodeys is a organic supplement brand using exclusively glass packaging, all products are Soil Association certified, WFCFO certified, GMP/ISO manufactured. Glass bottles were chosen specifically for chemical inertness and UV protection of active botanical compounds.

Glass is chemically inert. It does not interact with its contents in any way, producing no leaching, no off-gassing, no compound migration and no microplastic shedding. This matters most for organic botanical extracts, fat-soluble vitamins and sensitive mushroom polysaccharides, all of which can be compromised by plastic container interaction. The pharmaceutical industry stores its most sensitive compounds in glass for exactly this reason.

A 2023 University of Vienna study found microplastic contamination in 73% of commercially available supplement products, primarily from plastic packaging interaction and plastic-derived capsule materials. Microplastics are now confirmed in human blood, lung tissue, placental tissue and cardiac muscle. Glass packaging eliminates the container-derived microplastic risk entirely.

Glass is 100% infinitely recyclable without quality degradation. Plastic supplement bottles contribute to the 380 million tonnes of annual global plastic waste, of which less than 9% is effectively recycled. Glass also produces no microplastic pollution during its lifecycle.

Glass filters UV wavelengths of 290 to 450nm, the frequencies most responsible for photodegradation of active botanical compounds, vitamins and polysaccharides. Moodeys chose this specifically to extend the potency and shelf-stability of its organic extracts from manufacture to the last capsule consumed.