We like to believe that we freely choose our products. That if we take this shampoo rather than another, it’s because it “smells better”, that we “saw the promo”, or that we simply wanted it. The reality is more subtle. A large part of our purchasing decisions are made long before we arrive in store or click “Add to cart”.
The brands, the visuals, the words, the colors… everything is designed to guide our choice. Not in a manipulative way, but strategically. Because in a market where everyone is fighting for a moment of attention, understanding how the human mind works becomes essential.
1/ 95% of our purchasing decisions are unconscious
This is one of the most cited figures in marketing, taken from research by Gerald Zaltman (Harvard Business School): 95% of purchasing decisions are made unconsciously. In other words, we rationalize after the fact. “I chose this one because it’s better.”
In reality, our brains had already made the decision, often in less than 0.3 seconds. This ultra short time is called the “zero moment of truth” (Google ZMOT). This is where everything comes into play.
2/ Influence begins well before the purchase
According to the Think with Google 2024 study, the average consumer consults 7 to 11 sources before making a decision. This journey may include:
- Customer reviews
- Influencer videos
- Items
- Comparisons
- Social networks
- Packaging
- Slogans
- Already known brands
Each micro-interaction builds an opinion… which will guide the final purchase.
3/ Emotions weigh more than arguments
Studies by IPA & System1 (2023) show that: Emotional ads generate twice as much long-term impact as rational ads.
For what ? Because emotion makes a mark. It creates a bond, warmth, trust. And trust is the new currency today.
Moreover, according to Edelman Trust Barometer 2024: 71% of consumers choose a brand that “resembles” them emotionally. So it’s not just the product… but the story it tells.
4/ The effect of familiarity: the more it is seen, the more it is chosen
A simple but extremely effective concept: a consumer is 2.5 times more likely to buy a brand that they have already seen somewhere (Nielsen study). Even without realizing it. The brain loves what it recognizes. This is called familiarity bias. The more a brand appears in our daily lives, the more reliable it seems.
5/ Colors influence up to 85% of the choice
Design is not just about aesthetics. A study of Institute for Color Research reveals that: 62 to 85% of purchasing decisions are influenced by colors.
Some known examples:
- The red attracts attention and creates urgency (promotions).
- The blue inspires confidence (banks, insurance).
- Green evokes nature, calm, ethics.
Successful packaging can increase sales by 30 to 40% (Ipsos Design Performance).
6/ Customer reviews: the new purchasing reflex
Today we trust “a stranger online” more than an advertisement. According to BrightLocal 2024:
- 87% of people read reviews before buying.
- 49% consider online reviews as reliable as recommendations from a loved one.
- A rating going from 3.7 to 4.2 can increase sales by 36%.
Opinions reassure, confirm, legitimize.
They influence even before that we pay attention to the brand.
7/ The weight of social proof
The human brain likes to follow what others approve of. It’s a safety reflex.
Registrations of the type:
- “+10,000 satisfied customers”
- “Best selling product this week”
- “Top 1 downloads”
are not there by chance. They increase the conversion rate 12 to 28% (CXL Institute study).
8/ The invisible role of slogans
A Kantar study shows that slogans:
- increase memorization by 30%,
- improve confidence,
- influence more than technical descriptions.
For what ? Because a slogan is the shortest form of a promise. It slips into memory and stays there, like a little mental anchor.
9/ Scarcity and urgency: two powerful triggers
“Only 3 items left”
“Offer valid until midnight”
These formulations increase sales by 9 to 31% depending on the Behavioral Insights Team.
The brain hates to lose an opportunity: this is the scarcity bias.
10/ We buy more with our brain than with our logic
Brands do not influence our purchasing decisions by “pushing” us to buy.
They influence by working on:
- perception
- confidence
- the emotion
- familiarity
- social proof
- the clarity of the message
And all these elements are perceived… well before the moment of purchase.
