Halo effect: how it influences what you buy without you realizing

Choosing products is something we do in our daily lives. We don’t always start by reading their features or comparing alternatives. Many times, a feeling is enough for us, and this can be related to the halo effect. We may like how it’s presented, recognize the brand, or the person recommending it gives us confidence. From there, we start to interpret everything else under that first impression.

Imagine two practically identical products on the same shelf. One has a careful package, beautiful colors, and elegant typography. Next to it, we have the other one that has simple and generic packaging. Even though you haven’t tried either yet, it’s likely that the first one seems better to you.

That automatic choice is called the halo effect. This effect makes it so that if we have a positive impression about how something looks, we attribute qualities to it that we don’t even know if it has. Here you’ll see where this bias comes from, how it influences your purchases, and how you can decide without being under this effect.

What the halo effect is and where it comes from

To understand the halo effect, think about the way we evaluate something when we don’t have all the information. Instead of analyzing each feature separately, our brain uses a general impression to fill in the missing data.

The halo effect is a cognitive bias by which a positive quality of a person, a brand, or a product influences the evaluation of other aspects that are not necessarily related. If something seems attractive, expensive, or prestigious to us, we can assume that it’s also more reliable or durable, even though we don’t have enough evidence.

This effect was discovered by psychologist Edward L. Thorndike. In 1920, he published a study called “A Constant Error in Psychological Ratings” making it known. In that study, he analyzed how several officers evaluated their soldiers in different aspects, such as physique, intelligence, leadership, or character. When a soldier made a good impression, the officers tended to rate other aspects better, even though that first impression had nothing to do with them.

It’s worth noting that this effect is bidirectional. It can also happen that when a negative characteristic dominates our perception, we interpret everything else unfavorably. This phenomenon is known as the horn effect. Basically, if something gives us a bad first impression, that feeling can extend to aspects that have no direct relation.

Examples of the halo effect in daily consumption

The halo effect is much more present in our lives than you think. It appears in many daily purchases, precisely because it usually acts before we stop to analyze the product.

For example, you’ve surely assumed more than once that an expensive brand offers more quality than a generic brand, even though both have similar specifications. We can also interpret that a food with a label like “natural”, “organic”, or “without additives” is healthier in every way. Surely that conclusion doesn’t come from nutritional information, but our brain has already assumed that that product is better.

The halo effect also appears in many other contexts. We leave you some examples so you can recognize them:

• A restaurant with careful decoration seems more likely to serve good food.
• A product with an elegant design seems more technological or durable.
• An attractive or charismatic influencer seems more reliable when recommending something.
• A well-known brand transmits confidence to us even when we don’t know the specific model.
• A high price is interpreted as a sign of quality, even though we don’t know what justifies that amount.

If you notice, in all these cases there’s a constant, and it’s that an easily perceived signal replaces a more complete evaluation. The design, the price, the brand, or even the appearance of who recommends it don’t prove by themselves that the product is better, but we assume that it is.

This can even happen with reviews. If the first rating you read is very positive, it’s possible that you interpret the following ones with more benevolence and downplay negative comments. If you start with a harsh critique, the exact opposite can happen.

How the halo effect affects what you buy

This effect can scare you a bit now that you know it, however, for marketing, it’s a very effective tool: it can encourage you to buy a product without you really identifying what has influenced your decision. The packaging, the photographs, the design of a store, the image of a brand, or the recommendation of an influencer create a first impression that directly influences how you perceive the quality of the product.

It’s important to keep in mind that the result is not always paying more for something worse. Sometimes the premium product does offer superior quality. The problem is that the halo effect makes us accept that conclusion before verifying it. It can lead us to pay more for the image of a brand, to discard an equivalent alternative because of its presentation, or to interpret a concrete feature as proof that the whole product is better.

Letting ourselves be impressed by these signals is not a failure. The problem appears when we don’t realize that the first impression has already taken part of the decision for us.

How to avoid falling into the halo effect when buying

The objective is not to be afraid of this effect either. You don’t need to distrust all products or analyze each purchase for hours. With following some steps that force you to value concrete information, it will be more than enough. Here we leave you a guide with the most important ones:

• Compare before looking at the brand. Review first the ingredients, specifications, warranty, duration, after-sales service, or return conditions. Afterward, you can value the brand and the design.
• Look for information that contradicts your first impression. Look for negative reviews, habitual problems, and comparisons with alternatives of similar price.
• Wait a while before buying something expensive. Waiting just 24 hours before jumping in can be enough to distinguish between a real need and the enthusiasm generated by an attractive presentation, limited offer, or a recommendation.
• Read positive and negative reviews. Favorable opinions help to know the strong points, but negative ones can reveal problems that don’t appear in the official description.
• Separate the image from the data. You can value that you like a brand, that the packaging is pretty, or that the product fits your style. The key is not to automatically convert that preference into a conclusion about its quality.

Before buying, it’s worth stopping for a moment and asking yourself if you really need it and what you’re valuing exactly.

Another very good option is to put a limit on the impulse by separating the money according to the type of expense. For example, you can reserve one card for treats and another for purchases you already had planned. With Bitsa, you can manage different cards from the app without opening a traditional bank account.

This way, you’ll continue enjoying your purchases, but it will be less likely that you end up paying more just because something was well presented.

Frequently asked questions (FAQ)

What is the halo effect?
It’s a cognitive bias by which a positive quality (design, brand, price, image) influences the evaluation of other product features, even though they’re not related.

Where does the term come from?
Psychologist Edward L. Thorndike described it in 1920, observing that a good general impression led to rating other traits better without direct evidence.

Does it only affect the positive?
No. There’s also the horn effect: a negative first impression can extend to other aspects and make everything seem worse.

How does it influence my purchases?
It can make you assume that a product is of more quality, more reliable, or more durable just because of its packaging, brand, high price, or who recommends it.

How can I avoid falling into the halo effect?
Compare specifications before the brand, look for negative reviews, wait 24 hours before expensive purchases, and clearly separate the image from the product data.

What questions should I ask myself before buying?
Do I really need it? What concrete features justify the price? Am I valuing data or just the presentation and the brand?