PBO Prime: redefining Piperonyl Butoxide for a new regulatory era

For decades, Piperonyl Butoxide (PBO) has been the reference synergist in insecticide formulations worldwide. By enhancing the efficacy of pyrethrins, synthetic pyrethroids and other insecticide classes, PBO has played a central role in pest control, particularly in managing resistant insect populations.

Today, however, the expectations placed on PBO are evolving. Performance alone is no longer sufficient.

Formulators, brand owners and regulators are increasingly looking for solutions that combine efficacy, sustainability, supply reliability and long‑term regulatory resilience. In this context, PBO Prime represents a decisive step forward.

From Performance to Substance Profile: A Regulatory Shift

Recent amendments to the European CLP Regulation have introduced new hazard classes, including PBT (Persistent, Bioaccumulative and Toxic) and vPvB (very Persistent and very Bioaccumulative).

Under this framework, substances placed on the EU market will continuously be evaluated not only for their intrinsic properties, but also for the presence of specific impurities above defined thresholds.

While PBO itself is not classified as PBT or vPvB, regulatory assessments have identified two potential impurities, Dipiperonyl Methane (DPM) and Dipiperonyl Ether (DPE), as substances that could potentially meet PBT criteria if present above threshold levels.

This marks a fundamental shift: the focus is no longer simply on PBO, but on PBO quality, impurity control and manufacturing consistency.

Why Natural PBO Grades Face Structural Limits

Many traditional PBO grades rely on raw materials derived from natural sources historically linked to safrole extraction. While technically effective, this approach presents increasing challenges:

• variability in impurity profiles inherent to natural feedstocks
• limited control over trace by‑products
• reliance on environmentally sensitive resources
• exposure to supply volatility

PBO Prime: Designed for What Comes Next

PBO Prime was not conceived as a simple premium grade.
It has been developed as a forward‑looking solution to address both regulatory evolution and market expectations.

Endura’s objective was clear: to deliver a high‑purity Piperonyl Butoxide with maximum control over impurities, enabling customers to confidently future‑proof their formulations.

This has been achieved through:

• a fully synthetic, patent‑pending, controlled production process, independent of natural raw materials
• a custom‑engineered PBO distillation column, setting a new benchmark in purification
• a production philosophy focused on batch‑to‑batch consistency and reproducibility

The result is PBO Prime: a high‑grade PBO characterized by exceptional purity, ultra‑low levels of DPM and DPE, and no potential PBT or vPvB classification under CLP.

More Than a Synergist: Concrete Value for Formulators 

Regulatory Confidence

By minimizing potentially critical impurities, PBO Prime helps reduce the likelihood of:

• future product reclassification
• formulation or labeling changes driven by impurity concerns
• reactive regulatory adjustments

Operational Reliability

Thanks to its synthetic origin and robust supply chain, PBO Prime offers:

• a stable and consistent chemical profile
• security of supply, independent of natural raw‑material fluctuations
• predictability for long‑term sourcing and production planning

Sustainability with Substance

PBO Prime supports tangible sustainability goals by:

• eliminating deforestation linked to Sassafras sourcing
• reducing pressure on limited natural resources
• aligning formulation choices with credible ESG strategies

A Strategic Choice for Future‑Ready Portfolios

PBO Prime is not about forcing immediate change.
It is about offering choice, a future‑ready option for customers who prefer to anticipate regulatory evolution rather than react to it.

In a market increasingly focused on substance profiles, impurity management and lifecycle impact, PBO Prime enables customers to:

• protect existing product portfolios
• strengthen regulatory robustness
• differentiate through quality, responsibility and foresight

Choosing PBO Prime means transforming regulatory awareness into a competitive advantage, while continuing to rely on the proven performance of PBO as a synergist.

Learn more about PBO Prime or get in touch with our team.