The mural is in a clinical room most often used for skin cancer removals.
The 26-year-old says she wants the tax gone to make sunscreen "more accessible to more people".
Charlotte Killeya has melanoma and is helping launch free sun cream dispensers in Crookes.
Justine, 45, is urging people to think carefully before using sunbeds following her diagnosis.
Social media posts wrongly claiming that sunscreen causes cancer have been spreading widely online.
Each summer, false claims about sunscreen causing cancer continue to spread online.
Experts say using cream when UV is higher than 2 can protect from life-threatening sun exposure.
A former cancer nurse in Devon says it is crucial children started building healthy habits early.
Slap It On, Jersey, encourages residents to take small, practical steps to reduce skin cancer risk.
