A proprietary ingredient is a formulation, such as a flavour or fragrance, made with a mixture of ingredients. Sometimes details of these formulations are not in the public domain.
Ingredient suppliers notify us of their proprietary ingredient formulations, which are entered in the TGA Proprietary Ingredient Tables. Each is given a unique ID number and purpose, e.g. colour, capsule shell. Applicants for new therapeutic goods can then select the unique ID or proprietary ingredient name in their therapeutic good formulation, rather than submit a full list of ingredients to the TGA.