Santiago Micro-Influencers Deliver 3.2x ROAS in 2025

The Latin American market presents a unique opportunity for brands seeking authentic consumer connections, particularly through micro-influencers. These creators, with their smaller yet highly engaged audiences, offer a pathway to build trust and drive conversions that larger celebrity endorsements often miss. We recently executed a campaign in Q2 2025 for a new direct-to-consumer (DTC) skincare brand launching in Chile, specifically targeting the Santiago metropolitan area. The goal was to establish brand awareness and drive initial product sales, using the power of localized, trusted voices. How can brands effectively tap into this potential?

Campaign Strategy: Hyper-Localizing Skincare for Santiago

Our strategy centered on a hyper-local approach for the Chilean market. The DTC skincare brand, new to the region, needed to overcome initial skepticism about foreign products. We identified that micro-influencers in Latin America possessed the credibility to bridge this gap. Instead of broad-stroke awareness, we aimed for deep engagement within specific Santiago comunas like Providencia, Las Condes, and Vitacura.

The campaign budget was set at $45,000 for a 10-week duration (April 1 to June 7, 2025). We allocated approximately 60% of this budget to influencer fees, 20% to content amplification (paid social ads boosting influencer posts), and 20% to internal management and analytics tools. Our primary key performance indicators (KPIs) included brand awareness (impressions, reach), engagement rate on influencer content, website traffic, and in the end, sales conversions. We set a target return on ad spend (ROAS) of 2.5x and a cost per lead (CPL) below $2.00.

Influencer Identification and Vetting

Identifying the right micro-influencers was the most critical step. We focused on creators with 5,000 to 50,000 followers, primarily based in Santiago, showing strong engagement rates (above 5%) and a clear affinity for beauty, lifestyle, or wellness content. We used a combination of manual searches on Instagram and TikTok, alongside influencer discovery platforms like Gradd and Upfluence. Our vetting process was rigorous:

• Audience Demographics: We verified that at least 70% of their audience resided in Santiago, Chile, and matched our target age range (25-45).
• Authenticity Checks: We analyzed follower growth patterns for suspicious spikes and used tools to detect bot activity or inflated engagement. An eMarketer report from late 2023 emphasized the rising concern of influencer fraud, which informed our strict approach.
• Content Quality and Brand Fit: We reviewed their past 30 posts for content quality, aesthetic alignment with the skincare brand, and tone of voice. We looked for genuine product recommendations and relatable storytelling, not just staged photoshoots.
• Engagement Analysis: Beyond raw engagement rates, we scrutinized comment sections for genuine interactions versus generic replies, ensuring a true connection between the influencer and their followers.

We initially shortlisted 150 potential influencers and narrowed it down to 25 for the campaign. Each influencer received a product kit and a detailed creative brief, but with ample room for their authentic voice. This balance is often missed. Brands over-script, and the content loses its appeal.

Creative Approach: Authenticity Above All

The creative strategy leaned heavily into user-generated content (UGC) aesthetics. We encouraged influencers to integrate the skincare products into their daily routines naturally. This meant unboxing videos, morning and evening routines, and honest first impressions. We provided key messaging points about the brand’s commitment to natural ingredients and skin health, but avoided rigid scripts. For example, one influencer, “PielRadianteCL,” created a series of short-form videos on TikTok demonstrating the product’s texture and scent, which resonated strongly with her audience. The brief emphasized:

• Relatability: Show how the products fit into real life, not an idealized version.
• Problem/Solution Framing: Address common skin concerns relevant to the Santiago climate and offer the product as a gentle, effective solution.
• Clear Call-to-Action (CTA): Always include a swipe-up link or a direct link in their bio, coupled with a unique discount code to track conversions.

We also implemented a tiered content strategy: 60% of posts were static images or carousels on Instagram, 30% were Instagram Reels/Stories, and 10% were TikTok videos. This diversified exposure across platforms where our target audience was most active. The visual aesthetic aimed for clean, minimalist, and aspirational yet attainable.

Campaign Performance: Metrics and Optimization

The campaign ran for 10 weeks, generating significant insights. Here’s a breakdown of the performance:

Initial Performance (Weeks 1-4)

During the initial four weeks, we focused on establishing brand presence. We saw:

• Impressions: 3.2 million across all platforms.
• Reach: 1.8 million unique users in Santiago.
• Average Engagement Rate: 6.1% on influencer posts.
• Website Traffic: 28,000 unique visitors.
• Conversions: 480 sales.
• Cost Per Lead (CPL): $1.85 (based on website leads who opted into email, not just sales).
• Cost Per Acquisition (CPA): $93.75.
• Return on Ad Spend (ROAS): 1.2x.

The initial ROAS was lower than our target, indicating that while awareness was building, conversion efficiency needed improvement. We observed that posts featuring direct testimonials and demonstrations of product texture performed better than lifestyle shots. The discount codes were being used, but not at the volume we anticipated.

Optimization Steps (Weeks 5-10)

Based on the initial data, we implemented several optimization steps:

1. CTA Refinement: We A/B tested different calls-to-action. “Shop now for glowing skin” performed 15% better than “Discover our new collection.” We also emphasized the limited-time nature of the discount codes more prominently.
2. Content Amplification Adjustment: We reallocated 10% of the budget from static Instagram posts to boosting top-performing Reels and TikTok videos. These short-form videos had a higher click-through rate (CTR) of 4.8% compared to 2.1% for static images. We used Meta Business Suite’s audience targeting to reach lookalike audiences based on initial purchasers.
3. Influencer Brief Iteration: We provided additional guidance to influencers, encouraging more detailed reviews of specific product benefits (e.g., “reduces redness,” “improves hydration”) rather than general endorsements.
4. Landing Page Optimization: We created dedicated landing pages for each influencer’s unique code, featuring their specific content and testimonials, reducing bounce rates by 8%.
5. Frequency Adjustment: We found that posting twice a week per influencer, rather than once, maintained momentum without oversaturation, increasing weekly conversions by 12%.

Final Performance (Cumulative)

After these adjustments, the campaign concluded with significantly improved metrics:

• Total Impressions: 8.9 million.
• Total Reach: 5.1 million unique users in Santiago.
• Average Engagement Rate: 7.3% across all posts.
• Website Traffic: 98,000 unique visitors.
• Total Conversions: 2,100 sales.
• Cost Per Lead (CPL): $0.72 (a 61% reduction from initial).
• Cost Per Acquisition (CPA): $21.43.
• Return on Ad Spend (ROAS): 3.2x.

The 3.2x ROAS exceeded our target, validating the focus on micro-influencers and the iterative optimization process. The initial CPL of $1.85, while decent, was brought down to $0.72, showing the power of continuous testing. A significant portion, over 70%, of conversions were direct swipe-ups or link clicks within the first 48 hours of post publication, which shows the immediate impact of authentic recommendations. What this campaign proved is that you can’t just set and forget. Constant monitoring and adaptation are non-negotiable for success in this space.

What Worked and What Didn’t

What Worked:

• Hyper-localization: Focusing exclusively on Santiago allowed for deeply relevant content that resonated with local consumers. Influencers understood the local nuances, including specific climate challenges for skincare.
• Authenticity of Micro-Influencers: Their genuine connection with their audience led to higher trust and engagement. Comments on their posts often referred to the influencers by name, indicating a personal relationship.
• Iterative Optimization: The willingness to analyze real-time data and adjust creative, targeting, and CTAs was paramount. Without continuous A/B testing, we would have missed the opportunity to significantly reduce CPL and increase ROAS.
• User-Generated Content Focus: Allowing influencers creative freedom within a framework produced content that felt organic, not overly branded.
• Clear Tracking Mechanisms: Unique discount codes and UTM parameters allowed for precise attribution, which is often a challenge in influencer marketing.

What Didn’t Work (Initially):

• Generic CTAs: Our initial, more generic calls-to-action (“Learn More”) performed poorly compared to direct, benefit-driven CTAs (“Get Your Glow Now”).
• Over-reliance on Static Posts: While valuable for awareness, static images had lower conversion rates than dynamic video content, especially on platforms like TikTok and Instagram Reels.
• Underestimating the Need for Paid Amplification: Simply having influencers post wasn’t enough. Boosting top-performing content with targeted ads significantly extended reach and improved conversion metrics. This is a common mistake. Organic reach alone won’t cut it.

Lessons Learned for Future Campaigns

This campaign reinforced several critical lessons. First, the power of micro-influencers in Latin America is undeniable, but their selection process needs to be forensic. Don’t just look at follower count. Dive deep into audience demographics, engagement quality, and content authenticity. Second, flexibility in creative execution is key. Provide guidelines, but trust your influencers to deliver content that resonates with their specific audience. Third, never launch an influencer campaign without strong tracking and a plan for continuous optimization. The initial weeks will always be a learning phase. Finally, paid amplification of influencer content is not an option. It’s a necessity to maximize reach and conversion potential.

For brands looking to enter or expand within Latin American markets, investing in micro-influencers offers a cost-effective and highly impactful strategy. The key lies in strategic planning, careful execution, and agile adaptation to real-time performance data. It’s not about finding the biggest names, it’s about finding the most authentic voices that truly connect with your target audience.