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Colorbiotics expands asphalt innovations with Invigorate® Plus additive.

Editorial note: This product was originally released under the name Biomag Hot Mix. It was renamed with Invigorate branding in July 2023.

  • Invigorate Plus additive joins the growing Colorbiotics additive and sealcoat lines, complementing proven and popular Invigorate products.
  • Invigorate Plus additive enables up to 50% RAP use versus comparable solutions that reach 25% — while exceeding performance requirements.
  • Soybean-based polymer makes the product ideal for major traffic and heavy loads, and reduces the need for petroleum polymer modification in high-RAP applications.

(AMES, Iowa – December 2022) Colorbiotics has introduced Invigorate Plus additive, a new additive containing soybean-based polymer that enables up to 50% use of recycled asphalt pavement (RAP) in high-traffic and heavy-load applications, compared to the standard 20 to 25% RAP use with competitive additives. This means highways and major arteries can maintain performance requirements while being constructed with more RAP and less petroleum polymer modification. In fact, tests have shown greater stress relaxation and elastic recovery in pavement with Invigorate Plus additive versus typical aging and stiffening that can occur over time with other additives, particularly in temperature extremes.

“Invigorate Plus additive is the perfect complement to our Invigorate additive,” said Austin Hohmann, Colorbiotics product manager. “We now have two additive options that make asphalt construction more environmentally friendly, from parking lots to major interstates in all climates.”

Invigorate Plus additive is an advanced soybean oil-derived additive that triggers chemical reactions inside RAP and stiffens binders to break down asphaltene aggregation. It also reverses the effects of oxidation in the final mix. While other asphalt additives offer a superficial change to the viscosity of the binder, Invigorate Plus additive improves the chemical properties of lower-quality binders. Like Colorbiotics’ original Invigorate line, this new technology improves the recyclability of asphalt while still meeting PG and performance-testing specifications, with the added benefit of a soybean-based polymer for both binding and surface protection.

“The same science that produces superior asphalt can help protect it,” Hohmann said. “It is powerful technology that should change the industry and create new standards over time. That is what we are working toward.”

For more information on Invigorate Plus additive and other Invigorate products, visit or