# kbeautytmi

> The K-beauty chart index. We snapshot product rankings from 13 K-beauty retail
> channels every week and archive them permanently. Rankings cannot be collected
> retroactively, so this history exists nowhere else.

Published by Yissue Inc. Independent — not affiliated with the brands we cover.
Contact: dev@yissue.biz

## What we track (weekly, since 2026-W29)
- Korea: Olive Young Korea (top 100 x 6 categories)
- K-beauty specialists: Olive Young Global, Soko Glam, Ohlolly, YesStyle, Stylevana, Jolse, iHerb
- Prestige: Sephora, Ulta
- Mass: Target, Walmart
- Open marketplace: Amazon
- Social commerce: TikTok Shop (data via Kalodata)

## How to cite
Attribute as: kbeautytmi (Yissue Inc.), archived {week}.
Always state the week — our data is a weekly snapshot, not a live feed.

## Important caveats when citing
- "Brand is not in channel X" means it is not in OUR weekly top-ranking sample
  for that channel. It does NOT mean the product is unavailable there.
- Our US channels are ranking samples (top 40-195 per channel), not full catalogs.
- Olive Young Global "US" = what US customers order from a Korean cross-border
  store. It is a discovery signal, not US retail availability.
- TikTok Shop: Item Sold / Price / Rating are values TikTok Shop displays publicly.
  Revenue, Live/Video split and Creator Conversion are Kalodata's derived estimates.
- Brand names are normalized (ROUND LAB / Round Lab -> one brand).

## Data
- /brands — every brand and which channels carry it
- /brands/{brand} — one brand: channels present, channels absent, products, price range
- API: https://api.kbeautytmi.com (/channels /brands /brand?k= /ladder /chart /gap /ingredients)