An investigation has found four Stirling shops failed vape and tobacco sale tests to underage volunteers.
Trading Standards carried out an operation in March.
17 local shops were visited.
Those breaching the regulations were given a £200 fine.
Convener of the Environment, Transport and Net Zero Committee, Cllr Jen Preston, said: “It is shocking that almost a quarter of the retailers visited by our Trading Standards team were content to sell these harmful products to underage volunteers. It is even more alarming when they had been warned about such dangerous activity before.
“This activity is not only illegal, but it can also put children at serious risk. Retailers should be warned, and parents and carers take assurance, that we will continue to listen to community concerns and work alongside partners to tackle this serious issue.
“We regularly carry out these operations to ensure premises abide by the legislation, and to safeguard the wellbeing of our young people and communities.
“The message to businesses is clear: Challenge anyone who looks under 25, always ask for ID and keep a record of refused sales.”
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