I have looked into the matter of registration in Russia vitamins and supplements produced by the Natural Dogs company.
First of all, Gost-R is not relevant in this case.
Company should register its vitamins and supplements for dogs with the Russian Veterinary Authority – Rosselkhoznadzor.
List of requirements and documents is available on the official website of Rosselkhoznadzor: http://www.fsvps.ru/fsvps/regLicensing - available only in Russian.
It is important to bear in mind that some significant investments will be required, as follows:
• Obligatory state duty/state tax at the rate of 150000 Rubles (approx. £3000) for each item of supplement or vitamin.
• As a part of registration, it is necessary to carry out some tests - their cost depends on the complexity of formulation of vitamin or supplement (from 20000 to 130000-150000 Rubles equal to £400 - £2600-3000).
Some of the supplements produced in UK are already registered in Russia, and their registration details can be found in the official register: https://irena.vetrf.ru/irena/operatorui?_action=clearRequestsListMedicine – perhaps, this would be useful.
Taking into consideration above mentioned information on registration I would suggest the Natural Dogs company to find a local distributor or representative, who will represent them in Russia and submit all necessary documents in Russian to Rosselkhoznadzor on behalf of the Natural Dogs company.
I hope that provided information was useful.
Should you have any further queries please let us know.