Why it worked
The video uses a clean, aesthetic, and minimalist presentation that focuses entirely on the product, making it feel like a high-quality recommendation rather than an overt advertisement.
Product placement
(a) e.l.f. Cosmetics: The video shows a branded lip trio set being held and displayed. The brand name is clearly visible on the packaging of the lip liner, lip oil, and lipstick. The product is the subject of the video, and removing it would remove the entire purpose of the content. (b) TikTok Shop: Appears as a hashtag in the caption, which is a marketplace/platform; it is not the product being sold.