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Biodegradable Plastics (PLA/PHA Products) — household safety profile

Low risk

Products made from biodegradable polymers: PLA (polylactic acid, corn starch-derived) and PHA (polyhydroxyalkanoates, bacteria-produced).

What is this product?

Products made from biodegradable polymers: PLA (polylactic acid, corn starch-derived) and PHA (polyhydroxyalkanoates, bacteria-produced). Marketed as 'biodegradable' but PLA only degrades in industrial composting (58C+, specific humidity) — NOT in home compost, landfill, or ocean. PLA in landfill behaves identically to conventional plastic. Fragments into microplastics in marine environments. 'Biodegradable' labeling misleads consumers into littering.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Base Polymer

Base Polymer Alt

Who's most at risk

  • Children — Developing endocrine and neurological systems, higher exposure per body weight

Red flags — when to walk away

  • Unsubstantiated safety or environmental claims — Product may not perform as marketed.

Green flags — what to look for

  • Third-party certification — Claims independently verified.

Safer alternatives

  • Reusable containers — eliminate single-use entirely
  • Paper/cardboard packaging — truly biodegradable in all environments
  • Home-compostable PHA products — composting conditions less demanding than PLA

Frequently asked questions

Who should be careful with Biodegradable Plastics (PLA/PHA Products)?

Vulnerable populations identified for this product type: children.

Are there safer alternatives to Biodegradable Plastics (PLA/PHA Products)?

Yes — consider: Reusable containers; Paper/cardboard packaging; Home-compostable PHA products. See the Safer alternatives section above for details.

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Reference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →