Renova Technologies is a wholly-owned subsidiary of Shockwave, LLC, founded in 2019. ReOvo ingredients are produced by Renova Technologies. Renova uses Shockwave’s drying and particle size reduction technology to transform eggshell — a byproduct otherwise sent to landfill — into a line of natural, functional ingredients, including ReOvo™ Eggshell Calcium.
Manufacturers across pet nutrition, plastics, and industrial markets rely heavily on calcium carbonate — but most of it comes from mined limestone. Mined sources carry a growing list of downsides: extraction-related environmental impact, and exposure to the same supply chain pressures affecting other raw mineral inputs. As sustainability commitments and cost pressures both increase, manufacturers are looking for alternatives that don’t compromise on performance.
At the same time, one of the richest, most consistent sources of calcium carbonate is thrown away every day: eggshell. Egg processors generate enormous volumes of shell waste as a byproduct of liquid egg production, much of which is landfilled or land-applied at a cost. Raw eggshell can’t be substituted in as-is, however — unprocessed shell carries residual moisture, organic membrane, and bacterial risk, making it unsuitable for use in formulations without further processing to stabilize and purify it.
A Bio-Based Alternative to Mined Calcium Carbonate
Shockwave’s processing technology transforms eggshell waste into ReOvo Eggshell Calcium — a bio-based calcium carbonate ingredient line marketed under our Renova brand. The result is a clean, consistent, upcycled material that performs as a direct substitute for mined calcium carbonate, while diverting waste from landfills and reducing reliance on mined resources. All three ReOvo calcium products are in production now.
Need ReOvo calcium specs for your formulation?
Three Forms, Built for Your Application
Eggshell Calcium Powder
Available NowMilled and separated from whole eggshell to remove most membrane and protein, ReOvo 100 is a free-flowing, off-white powder with ≤1,680 micron particle size, ≤5% moisture, and up to 40% calcium content. It carries a 24-month shelf life and is natural and U.S.-sourced, with no pasteurization step applied.
Download the ReOvo 100 spec sheet- Particle Size
- ≤ 1,680 μm
- Moisture
- ≤ 5%
- Calcium
- Up to 40%
- Shelf Life
- 24 months
- Sourcing
- U.S.-sourced
- Pasteurization
- None
Eggshell Calcium Powder, Pasteurized
Available NowBuilt on the same physical and chemical profile as ReOvo 100, ReOvo 110 adds a heat-treatment pasteurization step, tightening microbiological limits for applications where food- or feed-grade safety margins matter most, such as pet nutrition. It carries the same 24-month shelf life and ≤1,680 micron particle size.
Download the ReOvo 110 spec sheet- Particle Size
- ≤ 1,680 μm
- Moisture
- ≤ 5%
- Calcium
- Up to 40%
- Shelf Life
- 24 months
- Sourcing
- U.S.-sourced
- Pasteurization
- Heat-treated
Homopolymer PP with Bio Filler
Available NowFor plastics and injection molding applications, eggshell calcium is also available pre-compounded into ready-to-use polypropylene pellets. Formulated for uniform dispersion and consistent processing performance, ReOvo 430 delivers enhanced stiffness and dimensional stability versus unfilled polypropylene, with a 24-month shelf life and no added carriers, preservatives, or flow agents.
Download the ReOvo 430 spec sheet- Format
- PP pellets
- Shelf Life
- 24 months
- Carriers
- None added
- Preservatives
- None added
- Flow Agents
- None added
Why Manufacturers Choose Eggshell Calcium
- Bio-based, upcycled calcium carbonate — not mined or synthetic
- Raw (ReOvo 100), pasteurized (ReOvo 110), and PP pellet (ReOvo 430) formats — all in production now
- Consistent ≤1,680 micron particle size and 24-month shelf life across the line
- Diverts eggshell waste from landfills and hauling costs
- Reduces reliance on mined resources
- Natural, U.S.-sourced ingredient
Eggshell Calcium is part of Renova’s broader ingredient platform, which turns eggshell — a byproduct historically sent straight to the landfill — into a family of natural, functional ingredients. For manufacturers evaluating alternatives to mined mineral fillers, it offers a way to improve sustainability credentials.
Learn More at Renova
For full specs, formulation guidance, or to place an order, visit our Renova brand pages — with resources tailored for pet nutrition and plastics applications.
Explore Renova
Full product details, spec sheets, application variants, and ordering are available on the Renova brand site.