3 Words That Sold Millions of Products

Marketing isn’t just visuals, video, or even price. It’s language—and the most powerful marketing campaigns in history were built on simple words that sparked deep psychological triggers.

In this blog, we break down 3 words that have sold millions of products, supported by neuroscience, consumer psychology, and behavioral economics.

Word #1 - You

“You” is not just personal—it’s psychological gold.

Research

• Using “you” in ad copy activates the insula, the part of the brain tied to self-perception and empathy.
• Emails with “you” in subject lines → 50% higher open rates (Campaign Monitor).
• Brands like Nike ("Find your greatness"), Spotify ("Your 2023 Wrapped"), and Netflix ("Because you watched...") thrive on direct address.

Examples

• “You deserve more.”
• “Your journey starts now.”
• “Made just for you.”

"You" bridges the emotional gap between product and person.

Word #2 - Free

“Free” doesn’t just mean no cost. It means no risk. That makes it irresistible.

Science

• In a famous MIT study, most participants chose a free chocolate over a much better one with a low price.
• Amazon’s “Free Shipping” program massively boosted international conversions—purely because the word “free” reduced perceived risk.

Examples

• “Buy one, get one free”
• “Free trial. No card required.”
• “Free shipping today only”

Free appeals to our emotional brain, bypassing logic entirely.

Word #3 - New

“New” signals reward, excitement, and possibility.

Data

• Neuroscience studies show people experience a dopamine surge when exposed to “new” offers.
• Ads with “new” in the headline get 23-30% more clicks on average (Nielsen).

Examples

• “Introducing our new collection”
• “Try the new flavor today”
• “Now with a new formula”

“New” taps into our natural craving for novelty and exploration.

“You,” “Free,” and “New” aren’t just words. They are neuro-marketing triggers used by the world’s best copywriters and ad strategists.

They influence without shouting. They persuade without forcing. And they sell - because they speak the language of the human brain.