Brands and influencers could unknowingly be violating the
FTC's endorsement rules by using TikTok to promote paid posts
and sponsored content without including the necessary disclosures.
TikTok offers native direct download and social sharing tools that
enable users to share TikTok videos on other social media platforms
without the caption and hashtags from the original video
description, which may include disclosures that were included as
required by the FTC to identify paid advertising.
For example, this is a screenshot from an influencer's
TikTok video when viewed directly on the TikTok mobile or web
app:

And here is a screenshot from the same video after direct
download from the TikTok app. When posted to another social media
platform, it will not have the #sponsored and #ad hashtags, which
were removed via TikTok's direct download tool: