Our team and company history

Konstantin Pronko and Vladimir Zemskov

In 2001 Konstantin Pronko, Vladimir Zemskov, Aleksey Diashev, and Alexander Zatvan developed a method for determining individual food intolerances and on that basis came up with a nutritional wellbeing and diet plan trademarked under the name of HEMOCODE™. The following like-minded team of scientists and entrepreneurs came together to build a company and product based on this research:

Alexander Zatvan is an entrepreneur, investor, and founder of the HEMOCODE™ Clinic.

Aleksey Diashev

Konstantin Pronko—an independent scientist, psychologist, and entrepreneur, the founder and CEO of the HEMOCODE™ Clinic.

Vladimir M. Zemskov — Professor of allergology and immunology, PhD in Medical Sciences and author of the blood research method for food product intolerance. Zemskov received his PhD at the age of 28 years from the Academy of Medical Sciences and an MD at the age of 37 as he completed his postdoctoral studies at the Moscow Medical Institute. He is the chief of the clinical immunology group of the Vishnevsky Institute of Surgery. He has published more than 200 papers in reputed journals, 42 monographs and textbooks for medical students and has served as an editorial board member of 3 Russian and 6 foreign medical journals. Zemskov is an academic of the Russian Academy of Natural Sciences, Russian Academy of Medical and Technical Sciences and honored Scientist of Russia, winner of the ‘RUSSIA Government Prize’.

Aleksey Diashev, professor, Doctor of Engineering, Doctor of Biological Sciences, developed the HEMOCODE™ technology as well as the unique equipment for conducting tests and research on food intolerance.

In that same year of 2001, the first HEMOCODE™ nutrition and wellbeing clinic was opened in Moscow. In the following two years 40 more HEMOCODE™ clinic branches and partner clinics opened up in various parts of Russia and Europe. Within next 6 years 150,000+ people had become patients of HEMOCODE™ clinics. In 2007 the HEMOCODE™ trademark was acquired by a group of private investors.


In 2003 as Konstantin Pronko and the team worked on HEMOCODE™ clinics a new company called Gemoscan Canada Inc. was founded by Konstantin Pronko and a number of other scientists and entrepreneurs in Toronto, Canada to further improve and develop the HEMOCODE™ technology.

Fast forward 15 years to now and Gemoscan has become an industry leader in food intolerance management. Currently Gemoscan Canada Inc. trades its shares on the Toronto Venture Exchange under the symbol GES and is quoted on the Munich, Frankfurt and Stuttgart Stock Exchanges under the symbol ‘1GE’.

Using its proprietary patented technology Gemoscan develops, owns and markets comprehensive naturopathic dietary management solutions for consumers including the HEMOCODE™ System and the MenuWise™ Plan as well as personalized medically supervised programs that promote dietary well-being. Gemoscan was the first solution on the market to commercialize a food sensitivity management solution and sell it directly to consumers utilizing their partnerships with retailers.

Gemoscan also owns and operates two multidisciplinary paramedical clinics: Physiomed Kennedy Inc., and Physiomed Yorkdale Inc located in Toronto, Ontario.

New HEMOCODE members

In 2015 the team behind HEMOCODE™ technology and Gemoscan came together again to work on a new project with two new additions to the team: Vladimir Sinopalnikov and Aleksandr Taranov.

Vladimir Sinopalnikov, a professor and Doctor of Medicine, from 1995 to 2004 was a member of the Primary Medical Commission of the Russian Federation for selection of cosmonauts for flight in space. He participated in developing professionally adapted rehabilitation programs for the flight crew and cosmonauts upon their return from space and also prepared cosmonauts for flight. He specifically worked on the following missions to space:

Vladimir Sinopalnikov in USA
  • 1995 – Norman Taggard, M.D. (USA) (5 flights to space), flight of 14 March 1995 (on the Soyuz TM-21) to the “Mir” Station, along with Vladimir Dezhurov (Russia) and Gennadiy Strekalov (Russia).
  • 2000 – flight of 31 October (Soyuz TM-31), William Shepard (USA) along with Yuriy Gidzenko (Russia) and Sergey Krikalev (Russia)—first team on the “Mir” Station.
  • 2001 – 28 April, Soyuz TM-32, the first space tourist, Dennis Tito (USA) (accompanied by Talgat Musabayev (Russia) and Yuriy Baturin (Russia)).
  • 2003 – 26 April, Soyuz TMA-2. Edward Loo (USA) and Yuriy Malencheko (Russia).
  • 2003 – 18 October, Soyuz TMA-3, Michael Foil (Anglo-American NASA astronaut-researcher), Aleksandr Kaleri (Russia) and Pedro Duque (Spain).
  • 2004 – 19 April, Soyuz TMA-4, Michael Fink (USA), Gennadiy Padalka (Russia) and André Kuypers (Netherlands)
Aleksandr Taranov

It was Vladimir Sinopalnikov who initially thought of and proposed the idea of building a solution for remote, noninvasive monitoring of patient’s vitals such as heartbeat, blood flow, blood pressure and overall state of a person’s health.

Aleksandr Taranov, a specialist in medical technical technologies for space programs, developed algorithms allowing telemonitoring of a person’s capillary blood flow using a web camera. A review of this technology is published in an article in the Open Access Journal of Clinical Practice.

true preferences app

Alexander Zatvan and Elizabeth Lataria were responsible in 2015 for creating the company FACECONTROL, INC. to productize this technology of monitoring bloodflow and vitals and bring it to market. The true preferences app uses this very technology to monitor capillary blood flow using a smartphone camera to determine individual needs and emotional state of a person as it pertains to food.

Alexander Zatvan and Elizabeth Lataria

As a result of the development of true preferences app by our research and development team at FACECONTROL, INC., we filed an application to American Patent Office. We received a US Patent “System and method of objectively determining a user’s personal food preferences for an individual diet”. (Serial No. 15/225,167).

Together our work on HEMOCODE™ method and clinics and our work on the new technology to monitor capillary blood flow resulted in true preferences project .

Our team is actively working on development and expansion of possibilities for the “true preferences” technology to other uses cases beyond nutrition.

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