The phrase "proprietary formulation" is correct and usable in written English.
You can use it when you are referring to a specific recipe or formula that is owned by a particular individual or company and is kept confidential. For example, "The restaurant uses a special proprietary formulation to make their famous sandwiches."
The particles are in what Dr. Baker described as a "proprietary formulation of mayonnaise" based on soybean oil.
A proprietary formulation was chosen to undergo this suitability determination.
The new trial was supported by Abbott Laboratories and compared Abbott's Niaspan, a proprietary formulation of niacin, to Zetia in heart patients.
The company stimulates microbes with a "proprietary formulation of nutrients," in already-drilled natural gas wells, which enables the wells to produce more methane, the primary component of natural gas.
The aim of this study was to clinically evaluate a topical proprietary formulation containing lipophilic catechins (AverTeaX, Camellix, LLC, Evans, GA, USA) on recurrent herpes labialis.
We studied a novel pancreatic enzyme product, ALTU-135, a proprietary formulation of microbially derived lipase, protease, and amylase, to determine its efficacy and safety in treatment of pancreatic insufficiency (PI) in patients with cystic fibrosis (CF).
But the intensely secretive industry, rooted in proprietary formulations, operates on a code of silence.
Energy drink producers claim that their proprietary formulations provide consumers with a physical and mental edge.
In addition, claims by drink producers that their proprietary formulations give consumers a physical and mental edge are coming under scrutiny.
Proprietary formulations of polystyrene-based hydrocolloid dressings and negatively charged microspheres are used in wound management.
Major disadvantages of commercially available LDH assay kits include proprietary formulations, limited options for optimization and high cost, all resulting in limited reproducibility in research applications.
