After a scandal of advertisements about Kera vegetable candy, Quang Linh and Hang Du Cac were prosecuted and temporarily detained for the crime of "deceiving customers".
Before collaborating with Quang Linh, Hang Duoc was a famous KOL, with live sessions earning billions. In the second half of 2024, Hang Du Cac surprised everyone when he sold out 50 tons of red apples and 20 tons of durian in just a few hours.
On TikTok with 4.8 million followers, Hang Du Cac attached a list of 119 products in the form of affiliate marketing (Affiliate). That means for each purchase from Hang Du Cac's personal page, she will receive a commission.
Hang Du Cac not only posts video reviews (testing, introducing) of the product but also livestreams to share about the uses and quality of many items.
Meanwhile, Quang Linh is also a new face in the online sales world. Compared to Hang Du Cac, Quang Linh has a list of 1,114 affiliate marketing products, showing the prestige and "demand for shows" of the 9X vlogger.
Quang Linh markets a variety of products, from food, fashion, beauty, household appliances... According to TikTok's price list, the commission percentage can range from 1-7.7% depending on the item and the distribution business.
Thanks to viewers' purchases and shopping cart visits, TikTokers can earn hundreds of millions of VND a month thanks to commissions from TikTok's platform and affiliate marketing policies.
Known as livestream "war god", Hang Du Cac and Quang Linh also got into many scandals.
Hang Du Muc has been criticized many times for exaggerating the product's uses. In March 2025, Hang Du Cac caused a stir when advertising to eat 1 candy ball worth 12kg of blueberries, eating 2 pills a day can prevent myopia and increase myopia.
Immediately after that, she had to apologize for advertising "a 70ml buy a bowl of bird's nest has up to 30g of fresh bird's nest", which was strongly criticized by consumers.
Quang Linh also had mixed opinions at times because of his response on livestreams, such as affirming that he sold moon cakes at expiration, "if you eat, you will buy medicine to drink" because he had too many questions about the expiration date; his attitude of challenging when someone made negative comments.
At the end of 2024, Quang Linh Vlogs and Hang Duoc, along with a number of others, contributed capital to establish the company. 2 TikToker created many livestream sessions attracting hundreds of thousands of viewers, closing thousands of orders. There are even items that have just been live for a few minutes and are out of stock.
Thanks to the strong attraction on online sales platforms, Hang Du Cac and Quang Linh Vlogs have created many record-breaking sales sessions. The two gradually became closer and called each other "brother" and "brother".
From there, Kera vegetable candy was born, causing a stir with advertisements such as "2 tablets for 1 plate of vegetables", "sweet from sweet grass". A product "guaranteed" by influential people suddenly becomes a fake, betraying the trust of thousands of consumers.
Through investigation, the authorities determined that the dietary supplement called Kera candy, produced by Asia Life Company, was counterfeit. The investigation discovered that the product contained more than 33% of Sorbitol - an ingredient used as a "basic".
Communication expert Nguyen Ngoc Long believes that social networks are a very complex and uncontrollable environment: "When you say something, in the context of millions of people following you every day, the risk of risk and crisis is very high. The incident caused widespread outrage because Thuy Tien, Quang Linh, and Hang Duoc are all famous people, and the number of followers combined could be up to tens of millions. Not to mention, each person in this trio has also been involved in private scandals".
