TYR Protein Formula

Our TYR Protein Formula Range

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Tylactin was the world’s first TYR protein formula that is made from a natural whole protein derived from whey called glycomacropeptide (GMP). GMP is the only naturally occurring protein that does not contain Phe or Tyr in its pure form. The natural absence of Phe and Tyr in this unique protein makes it ideal for the TYR diet. Tylactin is a modified formulation of GMP plus specific amino acids but is not supplemented with tyrosine to make it appropriate for the dietary treatment of Tyrosinemia Type I, II, III. 


Studies have shown that natural intact proteins, like GMP, have a slower absorption rate in the body and an improved protein usage when compared with single amino acids, which mimic whole intact protein. Available in three difference preparations:

Our character

Cortex Health is an Australian based distributor of highly specialised medical foods and products.

Our background was built in medical research, patient support initiatives and commercialisation within the local environment for the Australian & NZ community.

Est. 2013, Cortex Health was the first company in Australia to introduce glycomarcopeptide (GMP) for PKU which has now become synonymous with high quality formula for children (ages 1+) and adults. Our product range has now expanded and we are dedicated to those with rare or complex conditions by providing some of the most advanced medical nutrition available worldwide.

We aim to provide the highest level of support and service.