Anyone who sells online knows: the problem is almost never a lack of products to sell. It is selling the right product, at the right time, before it gets saturated with competition. On TikTok Shop, that window of opportunity tends to be even shorter — a video goes viral, the product sells out, and within a few days dozens of shops are already selling the same thing.
The 154% rise in fashion sales and 151% in beauty recorded on TikTok Shop Brazil (source: Central do Varejo) shows how fast certain categories explode. Whoever spots that movement early can position the product, test creatives and gain traction before the competition realizes what is happening.
The most common mistake for beginners is relying only on what shows up in the "For You" feed — the algorithm shows what has already gone viral, not necessarily what is about to. When a product is already everywhere in your feed, it has already passed the opportunity phase and entered the price-war phase.
This is where reading real growth data comes in. On Vellum Lens, every product has a growth history across different periods — 7, 30, 60, 90 and 180 days. A product that goes from few sales to consistent growth of 30% to 50% in a week, without yet being saturated with shops selling it, is exactly the kind of signal worth investigating before everyone else.
Compare that growth with the number of shops already selling the item: the higher the growth and the lower the competition still is, the wider the window of opportunity. That simple cross-check — growth vs. competition — is what separates those who get in early from those who get in too late.
Market intelligence tools like Vellum Lens automate exactly that reading, alerting you when a product starts growing consistently, before it fully takes off.
Try Vellum Lens for free and start spotting trends before they become headlines.
