Serbia trading company import inquiry of toothpaste

Dear Gentleman,
We are a long time importer and distributor of products from China and Turkey
At the moment we have a request from our customers to source and import in quantity of 10.000 a toothpaste in size of 3 gr or 5gr.
We would need to know more of the specification of the toothpaste We would need to know the brands that you are supporting
and if it could be our own brand. Most probably we would be asked from our customs office the sanitary certificates
Please advise you availabi