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User Research UXUI Design Web Design Value-added Service

RE GREEN

Creating Lasting Value for Eco-Friendly Products

Role

Sole UX/UI Designer

Timeline

3.5 months | 2023

Skills

Adobe XD, Ill(AI), PS, HTML, CSS, JS

Impact

Product

Established RE GREEN's first owned digital presence, reducing reliance on third-party marketplaces

Business

Created a scalable platform for future community features and partnerships

User

Transformed one-time transactions into long-term relationships by maintaining ongoing user engagement through LINE.

Environmental

Strengthened local food systems, demonstrated circular economy principles,and increased public awareness of sustainability.

Product Overview

RE GREEN Digital Experience Design. I designed a complete digital ecosystem for RE GREEN—an enzyme-based kitchen composter—transforming it from a standalone product into a community-driven circular economy platform. The system includes a brand website, e-commerce platform, and a value-added service that connects users with urban farms, enabling them to exchange homemade fertilizer for fresh produce.

The Challenges

Kitchen Waste

40% of trash is kitchen waste

Low Recycling Rate

10% recycling rate

Toxic Dioxins

Burning produces toxic dioxins

In Taiwan, 40% of trash is kitchen waste, yet the recycling rate has remained below 10% for over a decade. Additionally, the air pollution caused by incinerating kitchen waste poses serious environmental and public health risks. RE GREEN developed an enzyme-based composter that successfully converts kitchen waste into organic fertilizer—but lacked digital infrastructure to reach customers and create lasting engagement. However, the business faced three critical challenges:

No Owned Digital Presence

The brand relied entirely on third-party platforms (crowdfunding, marketplaces), with no owned channel to communicate values or build direct customer relationships.

Anticipated User Experience Issue

Research with early adopters revealed urban users produce more fertilizer than they can use. With limited balcony space, excess fertilizer becomes a storage burden, leading to frustration and product abandonment.

Amy, 35, Taipei apartment resident

I bought REGREEN to reduce waste, and it works well. I produce about 500 grams of fertilizer each week, but my balcony plants only need around 100 grams. I could stop using it, but then I would be throwing kitchen waste back in the trash, which defeats the whole purpose. The fertilizer kept piling up, and after a month, I had nowhere to put it. At some point, I started wondering if this was actually solving the problem.

Rapid decline in usage motivation

Product becoming an unused appliance

Unable to perceive tangible value from waste reduction

Transactional Business Model

One-time hardware sales offered no ongoing engagement, community building, or opportunities to create sustained value.

Opportunity

How might we create a digital ecosystem that establishes brand presence, solves the excess fertilizer problem, and transforms one-time buyers into an engaged community?

Solutions

Brand Website

Establish Brand Presence and Communicate Environmental Values

E-commerce Function

Provide seamless online shopping experience

  • Streamlined checkout flow
  • Clear pricing and information
  • Multiple payment options
Value-Added Service

Build a fertilizer exchange system on LINE that connects users with urban farms, turning excess kitchen waste into fresh produce and supporting a circular economy.

Value-Added Service

Why LINE? Platform Selection Considerations

When the team discussed implementation approaches for the value-added service, we considered several options:

Criteria

Website

Standalone APP

LINE Official Account

User Adoption

Must remember to return

Low willingness to download

99.4% + already using daily

Real-time Interaction

Limited

Full support

Full support

Push Notifications

Limited capability

Native support

Reliable delivery

Development Cost

Low

High

Medium

Maintenance

Low

High ongoing cost

Low

Visibility

Depends on SEO

App Store competition

Built-in user base

Age Accessibility

20-60

20-50

20-70

Design

Value-Added Service

Leveraging LINE's widespread adoption and automated chatbot responses helps achieve business objectives while reducing customer service burden.

Urban farms are mapped with icons for produce exchange; unavailable items are grayed out.

Users exchange fertilizer for produce through a dedicated transaction tool.

The system tracks and displays all past exchange transactions.

Users can establish their own farms within the platform, transforming from consumers into community contributors.

Reflections

  • Systems Thinking Over Interface Design: Design isn’t just about screens—it’s about creating ecosystems. RE GREEN’s value lies in how it connects people with each other and with the environment.
  • Systems Thinking Designing Beyond the Product: Choosing LINE over a custom app taught me that user adoption matters more than feature ownership. We gained immediate reach by working within an ecosystem users already trusted. RE GREEN taught me to think in systems—designing not just a composting device interface, but an entire ecosystem connecting users, farms, and the circular economy.
  • Conversational Design Fundamentals: My first chatbot project taught me how structured dialogue options reduce decision paralysis, making services accessible across all user skill levels.
  • Behavioral Design Designing for Habit Formation: Creating a reward system that exchanges fertilizer for produce taught me how tangible incentives can transform occasional behaviors into lasting habits.