Posting on Instagram can come with a rush of validation when likes from friends and strangers come pouring in. But those likes will soon be hidden for some U.S. users.

In an attempt to clamp down on competitive pressure on the platform, Instagram will hide likes for "some" users in the United States starting next week, its CEO Adam Mosseri said Friday. It's a test that the Facebook-owned platform has already rolled out to seven countries: Canada, Ireland, Italy, Japan, Brazil, Australia and New Zealand.

Now, the United States will join the list.

Likes, or how many hearts a post gets, will disappear from Instagram's feed and user profile pages. A user can still see how many likes they've received, but their followers won't know the count. It's therefore harder to compare whether your post of a cute dog is getting more traction than a friend's photo of their cat.

Mosseri said the move is aimed at young people. "The idea is to depressurize Instagram, make it less of a competition," he said, in remarks given at the Wired 25 Conference.

Speaking at the conference in San Francisco, Mosseri estimated there were several hundred people in the audience and said some of them would definitely see their likes hidden.

Social media companies have come under pressure to take a more proactive approach to both monitoring content on their platforms and managing so-called "screen addiction."

Some users have so far expressed relief about the move to hide likes.

But the changes could also be a blow to smaller influencers who relied on large numbers of likes to attract brand deals. While likes may become hidden, Instagram still has another metric: the follower count. Influencers who make content that usually get a lot of likes but don't necessarily have large numbers of followers could see the competition move to a metric that they're not performing as well in.

"We have to see how it affects how people feel about the platform," Mosseri said, "I've been spending a lot of time on this personally."

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