The app said it “may collect biometric identifiers and biometric information” from users but would need consent before this data is taken.
It can be found under the heading “Information we collect automatically”.
This section of the policy is already fairly lengthy.
The new policy explains about collecting object and scenery data, which some other social media companies do for this like AR effects and ad targeting.
2Former US president Donald Trump tried to ban the app and claimed it was a national security threat Credit: Getty
However, the creepiest part concerns 'biometric data', meaning body measurements and human characteristic data.
It states: "We may collect biometric identifiers and biometric information as defined under US laws, such as faceprints and voiceprints, from your User Content.
"Where required by law, we will seek any required permissions from you prior to any such collection."
TikTok hasn't explained why it needs this data or how it will ask for permission to take it.
Only a few US states have biometric privacy laws.
They include Texas, Washington, California and New York.
This could mean TikTok could take biometric data without asking permission from users in other states.
The new policy comes as TikTok works to regain trust in the US after the Trump administration tried to ban it and claimed the Chinese-owned app was a security threat to the country.
We reached out to TikTok for comment on why biometric data is needed and whether a similar policy could come to the UK.
"We periodically review and update our Privacy Policies so that they best reflect our current practices based on market, regional, and legal requirements."
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