Copywriting for ads: persuasive techniques + AI

When I write an ad, my first goal is to get the person to keep reading; the second, to click; the third, to buy. That journey depends on every word I choose. Throughout this article, I share the copywriting formulas that have most helped me improve the performance of my digital campaigns and explain how artificial intelligence has become my ally to iterate, personalize, and test texts at great speed.

The difference between writing and persuading

Anyone can describe a product; persuading someone to buy it is another story. Good ad copywriting turns features into benefits, triggers emotions, and invites action. Persuasive writing is what transforms a simple description into a sale.

The role of copywriting in high-performance campaigns

No matter how good the product is if the ad fails to connect. A well-structured copy improves the click-through rate (CTR), reduces the cost per acquisition (CPA), and aligns the promise of your ad with what the user expects to find. That's why mastering writing techniques like the ones you'll see below can make the difference.

Main copywriting techniques for ads

When I write ads, I don't improvise. I use proven formulas that help me capture attention, maintain interest, generate desire, and provoke action. These are the ones I use most in my day-to-day:

1. PAS (Problem - Agitation - Solution)

I start by identifying a real problem that the audience faces, then I agitate it (that is, delve into how it affects their daily life) and finally present the product as the solution.

📌 Example:
“Are you still wasting time copying and pasting responses?
Every minute you spend on this is one less sale.
With our chatbot, automate responses and focus on what matters: selling.”

2. AIDA (Attention - Interest - Desire - Action)

This formula helps me structure the ad like a small journey: first, I capture attention with something striking, then generate interest, spark desire, and end with a clear call to action.

📌 Example:
“Do you still manually respond to every message on WhatsApp?
Imagine having an assistant who answers for you 24/7, takes orders, sends catalogs, and even follows up with customers who didn't complete a purchase.

More than 3,000 businesses have already increased their sales using this automation without needing to know how to program. And you can do it in less than 1 hour.

👉 Request a demo and start selling today without hassle."

3. 4U Formula (Useful, Urgent, Unique, Ultra-specific)

If I want a message to stand out from the noise, I apply this technique. I write something useful, that conveys urgency, has a unique angle, and is concrete.

📌 Example:
“Convert your followers into customers in less than 7 days.
Only this week, access our exclusive and free guide to sell more on social media.”

4. CVB (Characteristics, Advantages, Benefits)

When I explain a product or service, I don't stop at features. With this technique, I translate the technical into real benefits for the customer.

📌 Example:

“Includes WhatsApp integration (feature), which allows you to respond from one place (advantage), thus saving time on each sale (benefit).”

5. Before - After - Bridge

This structure is simple and very powerful for showing transformation. It focuses on how the customer's life was before, how it can be after, and how your product makes it possible. It's especially effective in performance ads, landing pages, and product descriptions.

📌 Example:
Before: "Does your skin look dull, with constant breakouts and lifeless?"
After: "Imagine waking up with a more radiant, clear, and healthy face every morning."

Bridge: "Our natural skincare line is designed for sensitive skin looking for real results from the first week."

Using artificial intelligence to improve your copy

Today I don't write alone. Artificial intelligence (AI) has become an indispensable tool in my workflow for writing ads. It allows me to go faster, generate more ideas, and run tests that were previously unthinkable without a complete team. Of course: it doesn't replace human judgment, it amplifies it.

I divide its use into four key moments of my creative process:

1. Generating ideas and variations when there's creative block

One of the most useful times to use AI is at the beginning when I need inspiration or new ways to approach an ad. For example, if I already have a clear product or message, but can't find the right way to communicate it, I ask AI for help.

💡 Example of a prompt I use:

“Give me 10 headlines for an online store ad using the AIDA formula.”
“Now give me 10 versions using PAS, with an emotional tone.”

This allows me to compare approaches, identify patterns, and choose the ones that best suit my audience. It's especially useful when I'm short on time or need to get out of my creative comfort zone.

2. Using effective prompts to refine the message

The quality of AI results depends on the quality of the prompt. Therefore, I've learned to be specific in my instructions. Instead of simply asking for “an ad,” I specify tone, structure, emotion, and objective.

💡 Examples of prompts I use:

• “Write three emotional and three humorous versions of this headline: ‘Automate your sales on WhatsApp without knowing how to program’.”

• “Convert this benefit into an urgent CTA of a maximum of 10 words: ‘Save time responding from one place’.”

• “Give me three 4U Formula style headlines to promote a free masterclass on social media sales.”
  
  

With these inputs, you can get more varied, relevant results that align with your strategy.

3. Faster, more efficient A/B testing

Creating and testing different versions of an ad used to take days. Today, with AI, I generate multiple variants of the same copy in minutes.

Once I have those versions, I upload them to platforms like Meta Ads or Google Ads. The same ad tool identifies which copy performs better based on metrics like CTR (click-through rate) or CPA (cost per acquisition). This allows me to optimize campaigns in real time without having to launch everything into manual trial and error.

📌 Useful tip: I also test different tones (formal, conversational, direct) to see which connects best with each audience segment.

4. Final editing: I always review and adjust

For me, this combination is key:
🤖 Although AI gives me a solid foundation, I never publish a text without first editing it. I adapt the language to the brand's voice and reinforce the main message.

It’s not about totally delegating writing but leveraging AI as a co-creator that helps me work better, not less.

Using Artificial Intelligence to Enhance Your Copywriting

Not all ads are written the same. Each platform has its own language. What works on Instagram may not work on Google or TikTok. That's why I adapt each copy to the channel, adjusting the tone to fit.

🔹 Meta Ads (Facebook & Instagram)
-  Stop chasing clients; make them look for you (find out how).
- Ready for your most luminous skin? Just 28 days.”

🔹 Google Ads
- Headline: “Sell more on social networks”
Description: “Fast results without programming skills.”

🔹 TikTok Ads On screen: “I wasn't selling anything before. Today I make $1,000 a month.”
Voice-over Hook: “This is what changed my online store.”
Added text: “Discover the tool that changed my business.”

What prevents an ad from working

A well-written copy can elevate a campaign. An ill-conceived one can do the opposite.

❌ Vague benefits that do not communicate a clear advantage.
Weak example: “Digital solutions for your business”
Better: “Sell more on WhatsApp without needing to program”

❌ Lack of connection with the user's problem.
Weak example: “Our company has 10 years of experience”
Better: “Thousands of businesses like yours have succeeded with us”

❌ Weak CTAs that don’t compel action.
  Weak example: “Find out more”.
Better: “Download the free guide” or “Request a demo today”

✍️ Create a writing routine that works for you
Dedicate at least 30 minutes a day to writing without interruption, finetuning unnecessary parts, honing the tone, and enhancing clarity.

❓ Ask the right questions before you start
Before writing any ad, ask yourself:
Who is my target audience?
What specific problem am I solving?
What value am I offering that stands out?
What is my unique selling proposition?״

• “Who is going to read this?”

• “What specific problem am I solving for them?”

• “How will this benefit them?”

• “What action do I want them to take after reading this?”
  
  

⭐ Get inspired without copying
Save the ads that catch your attention. Analyze:

• What structure did they use?

• What was the tone of the message?

• What CTA did they use?
  
  
  

From good copy to sales

A persuasive ad attracts clicks, but the real goal is to sell. Well-crafted copy generates interest and motivates the user to contact you, open a chat, and complete the purchase. It needs the right system to turn that attention into revenue.

Here at Yavendió!, we are experts at turning every conversation into a sale. When your ad generates a message, let us take care of the final step: converting interest into loyal customers.

Start your journey to selling even when you're not connected? Write to us and begin experiencing the power of combining intelligent automation with persuasive words.