Facebook vs TikTok Ads for Ecommerce: Stop Guessing, Here's How to Decide

By the AdsBabe team · Jan 1, 2026 · Updated Jun 9, 2026

How to Actually Choose Between Facebook and TikTok Ads

You're running a Shopify store. You have a product that moves. You need to pick a paid channel - or figure out how to split budget between two. Facebook or TikTok?

The answer depends on your product, your margin, and your creative capacity. Five questions will get you there.

The 5-Step Method: How to Pick (or Split)

1. Check your AOV first. If your average order value is under $40, TikTok Shop native is worth testing right now. Impulse purchases under $40 convert well in-app. If your AOV is $80+, Facebook's retargeting and catalog ads are harder to beat.
2. Look at your creative inventory. TikTok needs native-style video - fast cuts, creator feel, lo-fi production. If your best asset is a polished studio video, start on Facebook. If you have UGC or can shoot phone-first content, TikTok will reward you faster.
3. Check your audience age. If your buyers are 35+, Facebook still owns that demographic. If you're selling to 18-30, TikTok's reach is strong and CPMs are often cheaper.
4. Test one platform first, not both at once. Split testing platforms with a thin budget produces bad data. Pick one, run $50-100/day for two weeks, collect real CPA numbers. Then layer in the second platform.
5. Watch hold rate, not just ROAS. On TikTok, hold rate (percentage watching past 25% of the video) is your early signal. A 35%+ hold rate means your hook is working. Under 20% means the video dies in the first few seconds - no budget fix will save it.

Platform-by-Platform: What Actually Differs

Audience Depth and Targeting

Facebook's pixel has a decade of behavioral data behind it. Lookalike audiences, interest stacks, DPA against catalog browsers - that infrastructure is mature. TikTok's targeting is broader and younger, but its algorithm is aggressive. Give it a strong creative signal and it finds your buyer fast.

Creative Requirements

Facebook tolerates square video, static images, carousels, and DPA. It's forgiving of production quality. TikTok punishes anything that looks like a traditional ad. Content needs to blend into the feed - creator talking to camera, unboxing in a real room, fast 6-second product demo. Studio lighting and branded lower-thirds die fast.

Cost and CPM

Meta CPMs in competitive ecommerce categories run $15-40 in health, beauty, and home goods. TikTok CPMs for cold audiences typically run $8-18 in the same categories. But lower CPM doesn't mean lower CPA. TikTok traffic can be high-volume, lower intent. Facebook's retargeting traffic converts better because of stronger purchase intent signals.

Creative Fatigue and Iteration

Facebook creative burns out in 2-4 weeks at scale. Top-performing ecommerce brands often run dozens of active ads at once to manage this. TikTok creative has a longer shelf life - the feed is more chaotic, so the same user sees less repetition. If you can't produce 4-8 new variants per month on Facebook, performance will plateau.

TikTok Shop vs. Facebook Catalog

TikTok Shop removes the landing page entirely - native checkout inside the app, no cart abandonment. For products under $60 with strong visual appeal, it can produce the lowest CAC of any channel right now. Facebook DPA is the mature alternative: more setup, but it scales reliably for mid-funnel and retargeting once your catalog and pixel are dialed in.

Hook Swipe File: Angles That Work on Each Platform

Ecommerce-Specific Angles That Move Product

The best-performing ecommerce ads acknowledge the viewer's skepticism up front, show the product actually working, and end with a low-friction CTA. The UGC testimonial format is the most durable across both platforms - creator in a real home, real result, real reaction. Several DTC brands have scaled to 8 figures using iPhone-shot, minimal-production UGC as their primary ad format. For higher-AOV products ($80-200+), Facebook DPA retargeting against site visitors is typically the highest-ROAS campaign in any account. For impulse products under $50, TikTok Shop native is worth testing before you build out a full paid social stack.

Compliance Notes

On Facebook, health and wellness brands need to watch two things right now. First, Meta requires LegitScript certification for supplement brands making clinical-sounding claims. Words like 'treats,' 'cures,' or 'clinically proven' in video frames or copy will get your ad rejected. Stay at general wellness language: 'supports,' 'helps you feel,' 'designed for.' Second, before/after imagery that implies body transformation is increasingly flagged, even when the results are real. Use aspirational framing instead.

On TikTok, exaggerated earnings claims and specific weight loss amounts are prohibited. Native TikTok Shop ads in health and beauty categories may require pre-approval. Read the category-specific policies before building creative for restricted verticals.

On both platforms: fake urgency (countdown timers that reset, 'only 3 left' when you have 5,000 units) is a policy violation and an FTC risk. Real scarcity and real deadlines only.

Common Mistakes That Kill Ecommerce Campaigns

• Running the same creative for more than 4 weeks at scale. Creative fatigue kills ROAS faster than any bidding mistake. Build a rotation - minimum 3 active ads per ad set, fresh creative every 2-3 weeks.
• Treating TikTok like a Facebook placement. Repurposing polished Facebook video to TikTok almost never works. The formats are different. The culture is different. TikTok content needs to feel like it belongs in the feed, not like it came from an ad agency.
• Optimizing for ROAS without tracking LTV. A 2.5x ROAS looks fine until you realize the product has a low repeat purchase rate and the average customer never comes back. Build LTV into your CPA target before you decide a campaign is profitable.
• Scaling budget before you have 3 winning creatives in rotation. Doubling budget on one winner accelerates fatigue and spikes CPM. Scale with multiple proven creatives running at the same time.
• Skipping retargeting because attribution is broken. Post-iOS 14 attribution is messy on both platforms, but abandoning BOF retargeting is leaving money behind. MER (total revenue divided by total ad spend across all channels) is your real number now - not platform-reported ROAS.
• Targeting too broadly on TikTok. TikTok's algorithm is powerful but it needs a signal. Give it a creative that speaks to a specific problem for a specific buyer, not a generic product showcase. The algorithm optimizes from creative signals, not just audience settings.

When to DIY vs. When to Outsource Your Ad Creative

DIY makes sense when you're in the testing phase. You need 10-15 concept variations to find a winner. Speed matters more than polish. You can shoot phone-quality UGC in a real room in 30 minutes, upload it, and have data by tomorrow. For early-stage testing, DIY creative with a fast feedback loop beats expensive agency video every time.

Here's what the DIY workflow looks like:

1. Write 3-5 different hooks (use the swipe file above). Each hook tests a different angle.
2. Film each hook in one take on your phone. Real room, natural light, no script on screen.
3. Show the product working for 5-10 seconds after the hook.
4. End with one clear CTA: 'Link in bio,' 'Shop now,' or 'Get yours before they're gone.'
5. Upload as separate ads. Don't combine all hooks into one long video.
6. Check hold rate at 25% after 48 hours. Kill anything under 20%. Scale anything over 35%.

Where DIY gets expensive is at the variant stage. Once you have a winning hook and angle, you need 4-8 variants of that creative to prevent fatigue. Filming, editing, formatting for both square and vertical, and keeping up with that pace every week - that's where the time cost adds up fast.