What Is PLA?

January 5, 2026

Safe, Pet‑Friendly & Eco‑Conscious Bioplastic Explained

What Is PLA?

PLA, or Polylactic Acid, is a type of bioplastic made from renewable, plant‑based materials such as corn starch, sugarcane, or cassava. Unlike traditional plastics derived from petroleum, PLA is created through a fermentation process that turns natural sugars into lactic acid, which is then polymerised into a solid material.

PLA has become increasingly popular in 3D printing, packaging, disposable tableware, and even medical applications. For makers and small businesses like RoseLark, PLA is a favourite because it’s easy to work with, lightweight, and available in a wide range of colours.

Is PLA Safe?

Yes — PLA is widely recognised as a very safe material.

Here’s what makes it such a reassuring choice:

Non‑toxic: PLA does not release harmful fumes during normal use.
Food‑contact safe: Many PLA products are certified food‑safe, we only use PLA that is food safe
Low emissions: When heated in 3D printing, PLA produces far fewer volatile organic compounds (VOCs) than other filaments.
Widely used in medical settings: PLA is used in dissolvable stitches, implants, and drug‑delivery systems — a strong indicator of its biocompatibility.

A note for pet products

PLA is safe for external use around pets, such as enrichment toys, hides, or accessories. However, like any plastic, or even wooden enclosure accessories, it’s not meant to be chewed or ingested. If a pet is a known chewer, supervision is always recommended and regularly check all enclosure accessories for damage.