Picture yourself scanning a shelf of skincare products. Before you read an ingredient list or compare prices, your eyes land on the bottles. One has a clean logo, a soft color scheme, and a clear photo of what is inside. Another looks cluttered and generic. Within seconds, you have formed an impression about which brand seems trustworthy and worth your money. That split-second judgment is the subject of a study published in the Journal of Contemporary Marketing Science, which examines how the visual language of packaging shapes whether shoppers come to see a product as genuine and worthy of their approval.
The research was conducted by David Amani of the University of Dodoma in Tanzania. He set out to investigate a question that he argues has received limited attention in marketing research: what actually drives consumers to grant a product their social approval, and can the design of the package itself play a part?
The idea behind “legitimacy”
The study centers on a concept Amani calls consumer legitimacy. In simple terms, legitimacy is the sense that a business and its products behave in line with what society expects and values. The author describes it as a kind of “license to operate” granted not by a government but by ordinary people. When customers and communities view a company as a responsible member of society, they are more willing to buy from it, work for it, and recommend it.
Amani focuses on one specific form of this approval called cognitive legitimacy. This refers to a consumer’s ability to understand and make sense of what a product offers, and to judge it as reliable, necessary, and trustworthy based on the information and impressions available to them. A product reaches cognitive legitimacy when shoppers can comfortably place it in a familiar category and feel it fits accepted standards.
The other key idea is perceived authenticity, which the author defines as the degree to which consumers see a product as genuine, original, and real. The study proposes that authenticity is the bridge between what a package looks like and whether a shopper ultimately grants the product legitimacy.
Reading packages like a language
To connect these ideas, Amani draws on what is known as the Stimulus-Organism-Response theory, a framework from psychology that describes a chain of events: something in the environment (the stimulus) triggers an internal mental or emotional reaction (the organism), which then produces a behavior or judgment (the response). Applied here, the package is the stimulus, the feeling of authenticity is the internal reaction, and granting legitimacy is the response.
The package itself is treated as a form of communication, what the study calls semiotic product packaging. “Semiotic” refers to the process of making and conveying meaning through signs and symbols. Amani breaks packaging into four elements that each send a message to shoppers: color, images and graphics, printed information such as descriptions and quality details, and the brand logo. The study tests whether each of these elements feeds into a sense of authenticity, and whether that sense in turn leads consumers to view the product as legitimate.
How the study was done
Amani surveyed consumers of cosmetic products in Dodoma, the capital city of Tanzania. He chose cosmetics because shoppers have grown more health-conscious about these products and more concerned about whether the ingredients are safe, which puts pressure on producers to demonstrate they meet expectations.
Data were gathered through a self-administered questionnaire handed out in busy locations including university campuses, shopping malls, recreation areas, and city centers over a two-month period in late 2023. Respondents rated a series of statements about packaging color, imagery, printed information, logos, their sense of the product’s authenticity, and their judgments about its legitimacy. Of 350 questionnaires distributed, 321 were complete enough to analyze.
The author analyzed the responses using a statistical method called partial least squares structural equation modeling, a technique designed to test chains of relationships among concepts that cannot be measured directly, such as authenticity and legitimacy. Before testing his hypotheses, Amani ran checks confirming that the survey measures were reliable and that the different concepts were distinct from one another.
What the analysis found
The results offer support for every relationship the study proposed. Each of the four packaging elements was positively linked to a sense of authenticity. Images and graphics showed the strongest link, followed closely by the logo, with printed information and color showing smaller but still meaningful connections.
All four elements were also directly linked to cognitive legitimacy. Among these direct links, printed information and color stood out, suggesting that clear, readable details and appealing color choices play a sizable role in helping consumers judge a product as credible.
The central claim of the study concerns the role of authenticity as the connecting piece. Amani found that perceived authenticity was strongly linked to cognitive legitimacy, and that it helped carry the influence of each packaging element through to that legitimacy. In plain terms, the study suggests that when a package’s color, imagery, printed details, and logo make a product feel genuine, that feeling of genuineness in turn nudges consumers toward viewing the product as legitimate and deserving of their approval.
It is worth noting how much of the picture the model accounted for. The statistical results explained about 38 percent of the variation in how authentic consumers found products, but only about 15 percent of the variation in legitimacy judgments. That second figure indicates that packaging and authenticity are part of the story, while a good deal of what shapes legitimacy lies outside the elements measured here.
What it might mean for marketers
Amani argues that the findings give marketers reason to treat packaging as more than a container for protecting or storing a product. He suggests it functions as a strategic communication tool, and that companies stand to gain by designing each element with the goal of conveying authenticity. The author recommends that designers consider the social and cultural setting of their target shoppers, since a package that resonates within one community may not carry the same meaning in another.
He also ties his recommendations to broader social expectations, suggesting that aligning packaging with values such as health consciousness and responsible consumption, including the United Nations Sustainable Development Goals, may help products win approval from a wider set of stakeholders. The author frames these as strategic moves rather than guarantees, positioning thoughtful packaging design as one path toward gaining a competitive edge.
Caveats to keep in mind
Several limits are worth holding alongside the results. The study captures a single moment in time rather than tracking shoppers over weeks or months, so it cannot establish that packaging causes changes in legitimacy judgments; it documents associations among the measured concepts. The sample was drawn from one Tanzanian city using convenience sampling, meaning participants were approached based on availability rather than selected at random, which limits how far the findings can be generalized to other places or product types. Amani himself notes that consumer reactions to packaging tend to vary across countries and cultures, and he points to comparative studies, longitudinal designs, and the addition of factors such as gender, age, and product familiarity as directions for future research.
The work centers on cosmetics, a category where health and safety concerns make authenticity especially relevant. Whether the same patterns hold for products where shoppers weigh different priorities remains an open question the study leaves for others to explore.
