TikTok ‘sunburning’ hack won’t heal your acne – but it may put you at risk of skin cancer
Studies in human skin cells have also shown some potential benefits from UVB rays – including killing Propionibacterium acnes; the bacterium thought to be responsible for acne.
Source: https://www.inverse.com/health/what-really-happens-when-you-try-to-tan-away-your-acne