Nostalgia marketing has become an increasingly popular tool for brands to attract consumers and offer products that take them back to a simpler time. This thesis aims to investigate how nostalgia marketing influences consumer perception and explore sustainable techniques that brands can adopt to effectively utilize nostalgia. The study consisted of a literature review on nostalgia marketing, an analysis of interview data with consumers, and a discussion of the implications of the findings as they apply to brands. The study utilized a sample of 11 participants with a wide range of ages and genders. Data were collected through semi-structured interviews and analyzed using thematic analysis. The findings provide insight into what elements of items people find nostalgic and suggest strategies for companies to appeal to consumers sustainably and ethically. The results of this study highlight the need for responsible and sustainable marketing practices to ensure a positive impact on society and the environment.