Korean Probiotic Icon WILL Makes Hong Kong Debut at 7-Eleven

A functional dairy brand with over five billion bottles sold is entering one of Asia's most competitive convenience retail markets — and its launch strategy is worth watching.

A Gut-Health Brand Built on Science

South Korean brand WILL, developed by hy (formerly Korea Yakult), has built its reputation on a single, clearly articulated health proposition: protecting the stomach and gut with its patented probiotic strain HP7 (Lacticaseibacillus paracasei HP7), isolated from kimchi. Clinically shown to inhibit H. pylori growth and reduce gastric inflammation, HP7 gives the brand a defensible, science-backed positioning that goes well beyond generic probiotic claims. The formulation also incorporates multiple lactobacilli and bifidobacteria alongside dietary fibre, broadening its appeal to urban consumers with fibre-deficient diets.

Domestic Dominance as a Springboard

Since its launch in 2000, WILL has led South Korea's functional fermented dairy market, accumulating over five billion bottles sold — averaging more than 100 bottles per Korean citizen. The brand has leveraged high-profile K-pop and Korean drama endorsements, including Lee Min-ho and (G)I-DLE's Song Yuqi, to sustain cultural relevance across generations. That domestic equity now serves as a credible export narrative as the brand expands into overseas markets.

hy's Cheonan Plant in South Korea serves as the primary production hub for hy's functional dairy portfolio, including its flagship WILL probiotic yogurt drink range.

WILL probiotic yogurt drinks moving along the production line at hy's Cheonan Plant. Each bottle is formulated with the patented HP7 probiotic strain alongside multiple lactobacilli and bifidobacteria, requiring stringent quality controls throughout the manufacturing process.

7-Eleven as Market Entry Vehicle

WILL has launched across all 1,100 Hong Kong 7-Eleven outlets — a deliberate choice that prioritises reach and habitual purchase occasions over premium-channel exclusivity. The 150ml single-serve bottle fits seamlessly into convenience retail shelving and on-the-go consumption occasions, whether at breakfast, post-meal, or during late-night work hours. An introductory trial price of HK$12 (versus the RRP of HK$15) through 2 June further lowers the barrier to first purchase. The brand recommends 21 consecutive days of consumption to establish a gut-health routine — a retention mechanic that encourages repeat purchase from the outset.

The partnership also reflects a deliberate channel fit. Hong Kong's 7-Eleven has been actively repositioning itself as a destination for health-conscious, time-poor consumers — particularly Gen Z. In July 2025, the retailer launched a dedicated healthy eating campaign, "Diet Trainers" (健食教練 D.T.), featuring over 60 products under its 7-SELECT own-label range. The line-up spans ready-to-eat proteins such as salmon, chicken breast and eggs, to sandwiches, wraps, salads, soba noodles, BASE BREAD, and high-protein beverages. WILL's functional probiotic positioning slots naturally into this growing ecosystem of convenience-led health products.

7-Eleven Hong Kong's "Diet Trainers" (健食教練 D.T.) campaign, launched in July 2025, features over 60 health-focused products spanning ready-to-eat proteins, sandwiches, wraps, salads and high-protein beverages — reflecting the retailer's growing commitment to convenience-led healthy eating for busy, health-conscious consumers.

7-Eleven's first 24-hour convenience store in Hong Kong opened in Happy Valley on 3 April 1981. The network has since grown to nearly 1,100 stores across the city, marking 45 years of operation in Hong Kong this year.

What This Signals for Global Brand Owners

WILL's Hong Kong entry is a timely reminder that the traditional playbook of launching through supermarkets may no longer be the default for reaching health-conscious consumers in Asia. Lifestyle shifts — particularly among Gen Z and busy working adults — are reshaping when, where and how people buy functional food and beverages. Consumers are increasingly grabbing nutritious, ready-to-eat products on the way to the office, replacing formal meals with portable options before hitting the gym or a game of pickleball, and building supplement and probiotic habits through frequent, low-friction purchases rather than planned weekly shops. Crucially, no cooking is required — everything can be picked up and consumed immediately, fitting seamlessly into time-pressed urban routines where preparing a meal is simply no longer part of the equation.

Convenience stores, with their high footfall, extended hours, and growing assortment of ready-to-eat health-oriented products, have become the preferred first touchpoint for both trial and repeat purchase. For global food and beverage brand owners, this signals a necessary rethink of the "Place" pillar in their Asia market strategy. Convenience retail is no longer just a secondary channel — it is increasingly the smartest place to launch, test and build a loyal consumer base before scaling into broader distribution. Brands that continue to default to supermarket-first strategies risk missing the channel where purchase intent is highest among their most valuable target consumers.

WILL launches in Hong Kong in two variants: Plain (Zero Added Sugar, 60 billion live probiotics per bottle) and Mixed Berries (Low Fat, 75 billion live probiotics per bottle). Both are available exclusively at all 1,130 Hong Kong 7-Eleven stores from now until 2 June at an introductory price of HK$12 per 150ml bottle.