Unlike a latte or a cappuccino, in which the froth comes from aerated milk, the fluffiness of dalgona coffee comes from the coffee and sugar itself.

Dalgona coffee was almost nonexistent until January 26 this year. A Korean YouTuber posted a clip where he uses a mixer to whip coffee, sugar, and water into a foam so thick it looks more like frosting or caramel pudding and then dollops it onto a glass of milk.

Because people are called to stay indoors, and many cafes are closed during the outbreak, people are more open to trying out this drink at home.

The simplicity of the recipe makes it popular. Most people have sugar and instant coffee in their pantries. It is also fun to see everyone make their own version of a recipe and share their experiences.

• Filters as on Snapchat.
• The ability to search for sounds to score your video.
• It provides extensive reasons and prompts.
• Hashtags play a large role as a functional organizing principle. 
• It nudges you and makes it easy to come up with material to post.
• Users are encouraged to engage with other users in two ways: Through "response" videos and through "duets" where a user replicates a video and add themselves alongside.

TikTok has stepped over the point between the familiar self-directed feed and experience based on algorithmic observation and inference. When you open the app, you don't see a feed of your friends, but a page called "For You" - It's an algorithmic feed based on videos you've interacted with or just watched.

It's not full of people you know or things you've explicitly told it you want to see. It is constantly learning from you and builds up a model of what you tend to watch. In short, it is like an Instagram centered entirely around its "Explore" tab.

Although beauty supplements were a small part of the beauty industry previously, they are now becoming increasingly popular. The global beauty supplement market is growing rapidly and is expected to reach $6.8 billion by the end of 2024.

A survey of buyers revealed that supplement brands, not skin care or makeup brands, are most likely to be picked up by retailers, as

beauty supplements have become hope in a bottle.

The concept may not be new, but the techniques used to market supplements are.

In 2013, companies realized they could make use of social media to promote their supplements as youthful and fun.

One of the attractive qualities for supplements is a strong engagement on social media, with packaging designed to be super-shareable.