One-in-three 16 and 17 year olds have seen an ad or pop-up for alcohol appear on their Facebook page.
That is according to survey by Alcohol Action Ireland (AAI) of Irish people aged between 16 and 65 and their attitudes to drinking.
2 of out 3 of those surveyed backed a minimum price for alcohol.
AAI director Fiona Ryan says doing so should delay teens from drinking too early.
