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Personalized Advertising on Social Media – Opportunities, Risks, and How You Can Protect Yourself

What Is Personalized Advertising?

When you use TikTok, Instagram, Snapchat, or YouTube, you often see advertisements that seem to match your interests surprisingly well. This is called personalized advertising or targeted advertising.

Social media platforms collect information about your behavior, for example:
• Which posts you like
• Which videos you watch
• What you search for
• Which accounts you follow
• Which websites you visit

Based on this data, algorithms create a profile of your interests. You are then shown advertisements that are designed to match this profile as closely as possible.

Why Is Personalized Advertising Particularly Relevant for Teenagers?

Teenagers spend a large part of their free time on social media. At the same time, they are in an important stage of development in which their identity, self-image, and purchasing behavior can still be strongly influenced.

Scientific studies show that teenagers often do not yet fully understand how much data is collected about them and how specifically advertising is tailored to their interests. Their understanding of commercial intentions develops gradually and often reaches a level similar to that of adults only in late adolescence.

What Are the Risks?

1. Influence on Purchasing Decisions

Personalized advertising is not only intended to provide information; it is also designed to influence your behavior. The better an advertisement matches your interests, the more likely you are to react to it or buy something.

As a result, teenagers may be more easily encouraged to make spontaneous purchases.

2. Loss of Privacy

Many users do not know exactly what data is being collected about them.

This may include:
• Location data
• Search behavior
• Interests
• Contacts
• Usage times

The more data that is collected, the more accurately companies can create personal profiles.

3. Reinforcement of Insecurities

Algorithms often show content that attracts attention. This frequently includes topics such as:
• Appearance and beauty
• Fitness
• Lifestyle
• Consumerism

4. Manipulation Through Political or Social Advertising

Companies are not the only ones that use personalized advertising. Political organizations can also target specific groups with particular messages.

As a result, different people may see different information, which can influence how they form their opinions.

5. Increased Screen Time

Personalized content and advertising are designed to be as interesting and engaging as possible. As a result, many teenagers spend more time on social media than they originally intended.

Excessive screen time can negatively affect sleep, concentration, and well-being.

How Can You Recognize Personalized Advertising?

Look out for the following signs:
• Advertisements labeled “Sponsored”
• Ads for products you have recently searched for
• Advertisements that closely match your hobbies or interests
• Influencer posts that are labeled as advertising

If an advertisement seems to be “made just for you,” it is probably personalized advertising.

Tips for Protecting Your Data and Privacy

Check Your Advertising Settings

Most platforms offer settings for personalized advertising. There, you can control which types of data may be used for advertising purposes.

Only Share Necessary Information

Before posting, ask yourself:
• Does everyone need to see this information?
• Is this information really necessary?

The less data you share, the less information can be used to create advertising profiles.

Question Advertising Critically

Ask yourself:
• Why am I being shown this particular advertisement?
• Do I really want this product?
• Or am I being deliberately influenced right now?

Use Privacy Features

Whenever possible, activate:
• Private accounts
• Restricted location sharing
• Individual privacy settings

Talk to Others About It

Talk to friends, parents, or teachers about advertising and data privacy. Getting a second opinion can often help you look at advertising more critically.

Scientific Sources

1. American Psychological Association (APA). (2024).

Health Advisory on Social Media Use in Adolescence.

The APA points out that teenagers should be informed in an age-appropriate way about the commercial use of their data.

1. Strycharz, J. et al. (2020).

Adolescents’ advertising literacy and privacy protection strategies in the context of targeted advertising on social networking sites.

The study shows that teenagers’ understanding of data collection and personalized advertising is still developing.

1. Zarouali, B., Poels, K., Ponnet, K. & Walrave, M. (2018).

Everything under control? Privacy control salience influences both critical processing and perceived persuasiveness of targeted advertising among adolescents.

The researchers examined how teenagers perceive and evaluate personalized advertising.

1. Hirsch, M., Binder, A. & Matthes, J. (2025).

A “drop in the ocean”? Emerging adults’ experiences and understanding of targeted political advertising on social media.

The study examines the effects of targeted political advertising on young users.

1. Harvard T.H. Chan School of Public Health (2023). Study on advertising revenue generated from minors on social media platforms. The findings highlight the economic importance of young users to advertisers.