Health products include medicines, foods, cosmetics, medical devices, hazardous
substances use in household, psychotropic substances, narcotics, and herbal products can be
brought into the Kingdom in the form of personal effects of travelers for personal use only. Bringing
it in must be imported by individual. However, all kinds of imported products must not be products
that are legally prohibited to be imported and must be processed under the terms and laws of
Thailand
More info : https://mnfda.fda.moph.go.th/dis/fda-logistics/