Why Amazon Outperforms TikTok on ROAS and Conversion
TikTok has 8 steps to purchase. Amazon has 5. That gap is where your ROAS disappears.

It comes down to steps.
TikTok path to purchase: see a video, watch 3 more reviews, read 40 comments, save for later, check the creator storefront, search on Amazon anyway, compare 5 listings, still unsure, repeat the loop.
Amazon path to purchase: search the problem, scan reviews, check before and after images, add to cart, buy.
8 steps vs 5. That gap is your conversion rate difference.
Why this matters.
On TikTok you are paying to interrupt someone who was not looking for your product. On Amazon the customer arrives with intent. Your listing just needs to confirm what they already want to believe.
Use TikTok to create demand. Use Amazon to capture it. They are not the same tool.
