The Home Office publishes data on the use of animals in scientific
procedures annually at: https://www.gov.uk/government/collections/statistics-of-scientific-procedures-on-living-animals.
The breakdown of the number of animals used for the testing of Household Product ingredients is published in the Animals in Science Regulation Unit’s Annual Reports at:
Data from 2018, for both numbers of procedures, and animals used in household product ingredient testing, will be published later this year.
The HO has published guidance on the Household Products testing ban, which is available at: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/660233/Household_products_testing_ban_advice_note.pdf