What are Reels trending ads?
Definition and goal of this new format
Reels trending ads are not just another Meta ad format. They are an innovative strategy that places your ads immediately after the top 5% of Reels, carefully selected by Meta's artificial intelligence.
‍
Unveiled at the Brand Building Summit 2025, this new format is part of Meta's overarching “Culture to conversion” strategy. It aims to connect brands with the major cultural moments that genuinely capture their audience.
‍
Its main goal is to let your brand build on real-time trends, leveraging the organic engagement generated by viral content. Rather than inserting your ad into the standard feed, it is positioned strategically after content that has already proven its ability to captivate users. This approach ensures better receptivity from your audience while integrating your ad naturally into the social media ecosystem.
‍
How these ads fit into the Reels feed
The integration of Reels trending ads relies on a sophisticated process driven by artificial intelligence. Meta analyzes each Reel in real time to identify those that generate the most engagement and virality. The algorithm also reviews their thematic relevance and cultural relevance, ensuring a natural alignment between the organic content and your ad.
‍
In practice, after watching an extremely popular Reel in categories like beauty, sports, automotive, or animals, your feed serves an ad that fits relevantly into that context. This smooth, contextual transition strengthens the impact and recall of your brand with the audience.
‍
These ads are placed automatically through Meta's Ads Manager. Advertisers who have a Meta sales representative can configure their campaigns to target either any global trending content or specific posts driving engagement within a given category.
‍
This system ensures that your ad content appears at the moment when the audience is most receptive, without disrupting the user experience. Meta's AI uses a vast amount of behavioral data, such as interests, liked pages, and browsing habits, to optimize the targeting and relevance of your ads.
‍
With more than 4.5 billion Reels shared every day across Meta's platforms, this format offers a unique opportunity to reach young, engaged audiences at a moment when their attention is at its peak.
‍
How Reels trending ads work
Algorithms and video selection criteria
The way Reels trending ads work relies on a sophisticated algorithm developed by Meta, which analyzes in real time the Reels that generate the most engagement. This system examines several essential criteria such as virality, thematic relevance and cultural relevance, as well as the content's ability to capture and hold the attention of active users.
‍
Artificial intelligence highlights videos that match specific cultural moments, such as popular challenges, events, or current trends. This ensures a natural alignment between the organic content and the ads served.
‍
In addition to the classic virality criteria, the algorithm incorporates detailed behavioral data about users. This data includes their interests, the pages they follow, and their browsing habits. This advanced targeting optimizes the relevance of the ads served after successful Reels, maximizing the advertising impact and return on investment for advertisers.
‍
Interaction between viral content and ads
The strength of Reels trending ads lies in the synergy created between the viral content and the ad that follows it. After a popular Reel, the user is in a state of high engagement and receptivity, which allows the ad to be perceived in a more natural and less intrusive way. This integration supports both brand recall and spontaneous awareness. Early results show a 20% increase in this awareness, a rate comparable to what is achieved with YouTube Select or TikTok Pulse.
‍
Thanks to automation through Ads Manager, advertisers can insert their campaigns into this feed smoothly. Placements are optimized based on audiences, industry categories (beauty, sports, automotive, animals), and marketing goals. This ensures a message that is perfectly suited to the moment when attention is captured by the trending content. This mechanism also strengthens brand building by placing brands at the heart of current cultural conversations on Instagram and Facebook.
‍
Why Reels trending ads matter for brands
Increased visibility and engagement
Reels trending ads allow brands to significantly increase their visibility by appearing directly after the most popular videos on Instagram and Facebook, where user attention is at its peak. Thanks to this strategic positioning on viral content, campaigns benefit from natural engagement and high exposure to an active, receptive audience, often generating a higher interaction rate than traditional ad formats.
‍
Creating a seamless user experience
By integrating the ad right after trending Reels, Meta ensures a smooth and minimally intrusive user experience. This continuity between viral content and sponsored content offers a gentle transition, avoiding the break in attention that often comes with traditional ad interruptions. This format therefore respects the natural flow of content consumption while fostering a positive perception of the brand during viewing.
‍
Access to precise analytics and feedback
With Reels trending ads, advertisers have access to advanced analytics tools through Ads Manager, which enable detailed performance tracking: visibility, receptivity, conversion rate, and spontaneous awareness. These precise indicators make it easier to optimize campaigns in real time and adjust audience criteria, ensuring ever finer targeting and a better return on investment.
‍
{{expert-primary="/cta"}}
‍
How to set up a Reels trending ads campaign
Technical and creative requirements
To launch an effective Reels trending ads campaign, it is essential to meet certain technical and creative requirements. Your content must absolutely be in vertical 9:16 format, perfectly suited to the immersive mobile experience of users on Instagram and Facebook.
‍
Sound plays a key role: it must be clear, engaging, and aligned with the targeted viral trend. It is strongly recommended to use authentic content, often in the form of UGC (User Generated Content), which maximizes credibility and emotional impact with the audience.
‍
In addition, the video must capture attention from the very first seconds with a clear message and a well-defined call to action (CTA). This care given to the creative is part of a video marketing strategy designed to support brand building, while fitting perfectly into the natural flow of trending Reels.
‍
Targeting strategies and best practices
To maximize the reach and relevance of your campaigns, Meta recommends working with a sales representative who can guide you in using the advanced targeting criteria available through Ads Manager. These criteria include audiences based on demographic data, interests, behaviors, and previous engagement. Campaigns can also target specific cultural moments, such as ongoing challenges or events, thereby increasing reach within specific niches.
‍
This granularity optimizes ad placement and improves return on investment.
‍
A good practice is to test different hooks, visuals, and formats in parallel (Reels, Carousels, Stories) to identify what works best. Incorporating elements like TikTok Pulse or YouTube Select makes it possible to create consistent multi-platform campaigns. In addition, dynamic budget planning allows you to adjust in real time based on key performance indicators such as click-through rate (CTR), cost per result (CPR), and ad recall.
‍
Evaluating and optimizing performance
The performance of Reels trending ads campaigns can be measured precisely through Meta's Ads Manager. This tool provides detailed statistics on spontaneous awareness, incremental reach, impressions, and the conversions generated.
‍
Taking advantage of these analytics helps you understand user behavior and identify the most responsive audience segments, in order to optimize your conversions. It is essential to adopt an agile approach by regularly adjusting audience criteria, budgets, and creatives based on the feedback gathered. Segmenting by use occasion, interest, or industry trend (beauty, sports, automotive, animals) makes campaign optimization easier, while contributing to long-term brand building.
‍
Thanks to these tools, advertisers have precise control over their paid media investments, consolidating their presence on social media in a measurable and effective way.
‍
Comparison with other ad formats on social media
Reels ads vs. Story ads
Reels ads and Story ads are two major ad formats on Instagram, each serving specific goals. Reels trending ads stand out for their ability to build awareness and drive engagement. Placed at the heart of viral content, they benefit from a high engagement rate and an extended lifespan, generating interactions several weeks, or even months, after publication.
‍
Conversely, Story ads offer an immersive full-screen experience, enhanced with interactive features such as link stickers and direct calls to action. These elements drive fast conversions and immediate actions. For example, 50% of Instagram users have already purchased a product after discovering it in a Story, which highlights their effectiveness in driving short-term sales.
‍
Reels trending ads vs. TikTok For You Page ads
Ads on TikTok's For You Page share similarities with Meta's Reels trending ads. Both formats fit into feeds powered by algorithms that favor viral and trending content. However, TikTok Pulse, the premium version of TikTok ads, focuses mainly on creators and trends specific to that platform.
‍
Meta, for its part, leverages its vast social ecosystem to offer more precise targeting through its Reels trending ads. Thanks to artificial intelligence and a multi-platform integration that includes Instagram, Facebook, and Messenger, advertisers can reach a broader and more diverse audience. In addition, the advanced management and placement options available through Ads Manager are a considerable advantage.
‍
{{rdv-primary="/cta"}}
‍
Choosing the right format based on your campaign goal
The choice between Reels trending ads, Story ads, or TikTok For You Page ads depends essentially on your marketing goals. If your priority is to strengthen awareness and build a brand image over the long term, Reels trending ads are an ideal option thanks to their viral potential and extended visibility.
‍
For campaigns focused on immediate conversions, such as limited promotions or direct traffic, Story ads, with their interactive features, are more suitable. Finally, to reach a young audience that is receptive to cultural trends, TikTok Pulse can be an effective complementary lever. By combining these formats in a multi-format strategy, you gain the flexibility needed to optimize each stage of the customer journey.
‍
The challenges and criticisms of Reels trending ads
Ad saturation
Reels trending ads offer exceptional visibility, but they also raise the question of ad saturation on social media. With millions of active users and a growing number of ad campaigns, some experts fear a risk of overload in the trending content feed.
‍
This proliferation could, over time, reduce the effectiveness of ads and lower the attention paid to each one. This would make it more complex for brands to differentiate themselves in an already highly competitive environment.
‍
Impact on the user experience
One major criticism concerns the impact on the user experience. Although the integration of Reels trending ads is designed to be smooth and contextual, some users may perceive them as intrusive, especially if they appear too frequently or after every viral Reel.
‍
This perception could affect user loyalty and engagement. Generation Z, who are particularly sensitive to authenticity, often favor organic content and brands that respect their consumption journey.
‍
The need to adapt ad creatives
To stay effective, Reels trending ads require constant adaptation of ad content. Advertisers must produce short, authentic videos aligned with current trends. This demands ongoing cultural monitoring, strong creative agility, and a diversity of formats to meet the varied expectations of audiences.
‍
Brands that fail to adapt risk seeing their campaigns become less effective, or even completely ignored by users.
‍
{{audit-primary="/cta"}}
‍
Conclusion
Reels trending ads represent a real revolution in the field of digital marketing. This innovative format gives brands a unique opportunity to capture attention by inserting themselves at the heart of viral trends. By combining exceptional advertising effectiveness with a smooth user experience, it enables powerful brand building on the Instagram and Facebook platforms.
‍
While challenges remain, such as ad saturation and the need to adapt on the creative side, the benefits in terms of spontaneous awareness and engagement fully justify the investment.
‍
You now have all the keys to launch your first campaigns. Do not wait any longer: test Reels trending ads right now through Ads Manager and position your brand at the heart of the cultural conversation. The time to act has come.
‍
FAQ: Reels trending ads
What is a Reels trending ad?
A Reels trending ad is a Meta ad served right after the most popular Reels of the moment. It appears in a highly engaging context, which naturally increases its impact.
‍
Why use Reels trending ads in my campaigns?
I can use this format to increase my brand's visibility, take advantage of cultural trends in real time, and reach an audience that is already highly engaged. It is a premium placement that improves recall and attention.
‍
How does Meta choose the Reels around which to place my ad?
Meta uses artificial intelligence to analyze the virality, cultural relevance, and engagement of each Reel. My ad is then placed after those that generate the most interest.
‍
What are the advantages of Reels trending ads?
I benefit from higher engagement, a natural integration into the user experience, and a better recall rate. Placement on trending content also improves the perception of my brand.
‍
How can I set up a Reels trending ads campaign?
I can set up my campaign through Meta Ads Manager, but this format is generally reserved for advertisers who have a Meta sales representative. I then choose my goals, my audiences, and my creative assets.
‍
What types of creatives work best?
Short, vertical, authentic content inspired by UGC works best. I need to capture attention from the very first seconds and use a clear message.
‍
How do I measure the performance of my Reels trending ads?
I can track key indicators in Ads Manager: reach, awareness, impressions, engagement rate, and conversions. These KPIs help me optimize my next creatives.
‍
What are the limits or risks of this format?
Because Reels trending ads are more visible, there is a risk of ad saturation. Users may also perceive this format as intrusive if it is too present. Suitable creativity is essential.
‍
Reels trending ads or Story ads: which one to choose?
If I want to boost my awareness and take advantage of the virality of trends, I choose Reels trending ads. If my goal is fast conversion or direct traffic, Story ads are often more effective.
‍
Can I combine Reels trending ads with TikTok or YouTube?
Yes, and it is even recommended. A multi-format strategy makes it possible to reach different audiences and optimize brand building.
.jpg)
.jpg)