Anti-smoking campaigners are urging Scots to back moves to strip brand logos from cigarette packets.
Cancer Research UK claims bright packaging encourages teenagers to take up smoking and wants them replaced with a uniform design that would feature the name of the brand on plain paper.
The UK Government is due to conclude a consultation on the issue on Friday night as it considers whether to bring in stricter laws on the design of cigarette packets.
Pro-tobacco groups insist the argument for plain packaging is based on speculation rather than fact and have sent a 200,000-signature petition to Downing Street urging ministers to reject the idea.
Cancer Research UK claims the design of branded packages detracts from the health warnings and misleads customers into thinking that some products are healthier than others.
It also says the brand identity of cigarette labels encourages young people to associate themselves with the products, with "bright, slim packs" aimed at young women and "bold, assertive" designs targeted at young men.
Long-term smoker Fiona McCallum, from Glasgow, said she took up the habit as a teenager and only gave up three years ago after watching her mother, Ruby, die of lung cancer.
The 45-year-old said: “My mum was a fighter and she never complained about anything so she didn’t go to the doctor until it was far too late.
“By the time lung cancer was diagnosed, it was too late to treat it and she died just three months later.
“I started smoking in my teens because my friends did. It was a time when you could buy single cigarettes on the way to school and so it was an easy habit to get into."
The UK Government's consultation on standardised packaging closes on Friday night.