Person who creates and posts beauty-related videos to YouTube
A beauty YouTuber is an individual who creates content for YouTube, publishing videos in the realm of cosmetics, fashion, hairstyling, and nail art. In 2016, there were more than 5.3 million beauty videos on YouTube, with 86% of the top 200 beauty videos created by individual beauty vloggers, as opposed to marketers using the platform to promote cosmetic brands. Background and industry trends. In 2015, there were more than 45,000 YouTube channels specializing in fashion and beauty-related content.
https://en.wikipedia.org/wiki/Beauty_YouTuber