The third season of "Glow Up: The Next Makeup Star" debuted in April 2021 in the U.K., airing new episodes through June. As of publishing, there has unfortunately been no announcement regarding a fourth season renewal, which means we obviously don't know the release date of Season 4 in the United Kingdom or the United States. However, just because "Glow Up: The Next Makeup Star" Season 4 hasn't been ordered yet, it doesn't mean that something isn't in the works and that we can't make an educated guess.
If we look to the past for guidance, the first season premiered in the U.K. in March 2019, the second in May 2020, and the third in April 2021. It's reasonable to assume, then, that if there is a Season 4 on the horizon, we could probably expect it to debut during the spring of 2022 in the U.K. and hit Netflix a few months after it's finished its run. Again, this is all conjecture because "Glow Up" has yet to be renewed for Season 4, but it doesn't hurt to be prepared, and it definitely won't stop us from dreaming about future seasons.
