‘Stronger Probiotics, DUOLAC’ Launches Advertising Campaign with Actor SON SUKKU
- Cell Biotech Korea
- Sep 10
- 2 min read

Korea’s leading probiotics brand, DUOLAC, has unveiled its new advertising campaign “221 Times Stronger Probiotics, DUOLAC” featuring actor SON SUKKU. The campaign was designed to highlight DUOLAC’s proprietary Dual Coating Technology and promote a new benchmark for quality probiotics — their survivability in the gut. For the past 30 years, DUOLAC has been dedicated exclusively to researching probiotics cultivated in Korea.
The newly released TV commercial, under the slogan “221 Times Stronger Probiotics, DUOLAC”, clarifies the correct understanding of “guaranteed viable counts” and stresses that what truly matters is whether probiotics survive in the gut. The message “With DUOLAC’s technology, up to 221 times stronger gut survivability” underscores the brand’s cutting-edge innovation.
By applying its Dual Coating Technology across all products, DUOLAC has successfully increased probiotics survival rates to as high as 91.6%, proving through human clinical trials that gut survivability is up to 221 times higher compared to uncoated probiotics. Rather than competing on guaranteed viable counts alone, this campaign introduces a new standard — the actual survival rate of probiotics in the gut.
Importantly, many consumers mistakenly equate guaranteed viable counts with gut survivability. However, these are fundamentally different concepts. Guaranteed viable counts refer to the number of live probiotics in a product up to its shelf life, whereas gut survivability indicates whether those probiotics can endure the digestive process and reach the intestines alive, DUOLAC’s developer Cell Biotech explained.

Explaining the choice of actor SON SUKKU as its new brand model, DUOLAC stated, “With his strength, charisma, and warm appeal, SON SUKKU is the ideal ambassador to credibly deliver our message of ‘probiotics with strong survivability in the gut.’” Starting with the new TV commercial, DUOLAC plans to roll out a diverse range of promotional activities, including online and outdoor advertising.
A representative from Cell Biotech added, “This campaign is not about competing on guaranteed viable counts, but about clearly communicating the essential standard of probiotics — their survivability in the gut. DUOLAC, as the world’s first developer of Dual Coating Technology, will continue to establish a new paradigm of ‘221 Times Stronger Probiotics’ based on scientifically proven gut survivability.”
Meanwhile, Cell Biotech, the company behind “221 Times Stronger Probiotics, DUOLAC”, is Korea’s leading probiotics pioneer. Since becoming the first company in Korea to successfully mass-produce probiotics in 1995, Cell Biotech has dedicated itself exclusively to developing Korean-tailored probiotics for the past 30 years. Through customized strain design for different life stages, the company offers probiotics solutions that support lifelong health — from newborns to middle-aged and older adults. Its flagship brand DUOLAC, powered by proprietary Dual Coating Technology, has maintained the No.1 position in global probiotics exports for 12 consecutive years.




