– Dear Klairs Vitamin PDRN Bouncy Pore Serum secured the No. 1 spot in the Official Cosmetics category and ranked No. 2 overall across all product categories on Japan’s Qoo10.
– Driven by a viral review from beauty creator @the.ryusk, the serum maintained its top-tier positions throughout the month, demonstrating strong repeat-purchase intent.
– Following this success, Dear Klairs plans to pursue exclusive promotions and joint product development with local influencers to create specialized solutions for the Japanese market.
Dear Klairs has reached a significant milestone in the Japanese market. The brand’s recent innovation, the Vitamin PDRN Bouncy Pore Serum, achieved a remarkable series of top-tier rankings on Qoo10, Japan’s leading online marketplace, throughout January 2026.
The serum’s explosive growth was ignited on January 7th, when influential Japanese beauty creator @the.ryusk posted an educational product review. The video broke down the complexities of the serum’s plant-based PDRN technology into an easy-to-understand guide, and quickly went viral across multiple platforms, amassing 741K+ views on Instagram Reels and 401K+ views on TikTok. By naming the serum his “2025 Best Cosmetic,” he highlighted the product’s unique ability to deliver deep “bouncy” repair and pore refinement.
This viral momentum translated into immediate and sustained sales on Qoo10. On January 8, 2026, the Vitamin PDRN Bouncy Pore Serum claimed the No. 1 position in the Official Cosmetics category, while simultaneously ranking No. 2 in the overall Beauty category and No. 2 in the platform’s Total Overall rankings, outperforming thousands of items across all categories, from electronics to fashion.
This was no short-lived spike. The serum maintained its stronghold through the end of the month. During a final live promotion on January 30, 2026, the product successfully defended its No. 1 ranking in the Official Cosmetics category, and held its remarkable No. 2 spot in both the Beauty and Total Overall categories. This sustained performance highlights the immense trust and repeat-purchase intent the Japanese market has for the Dear Klairs brand.
To build on this momentum, Dear Klairs has discussions for exclusive promotions and joint product development to co-create localized solutions with prominent local beauty influencers for the Japanese market.
Stay up to date with Dear Klairs’ news in Japan at @klairs.jp on Instagram.