Miior – Shopify Plus
implementation
How we prepared the Shopify Plus implementation for Miior — a Polish wellness and personal care brand. The full process: from requirements analysis, through a custom theme, to integrations and post-launch results.

Client — Miior
Miior is a Polish wellness and personal care brand based on natural ingredients and ingredient transparency. The brand stands out with a "clean beauty" approach — no unnecessary additives, with clear communication about what customers apply to their skin and why.
Before working with BrandActive, Miior was using a different e-commerce platform that couldn't keep up with the brand's growth and limited possibilities for designing shopping experiences.
Project challenges
The project required tackling several key challenges:
- Data migration — transferring the entire product catalog, order history and customer base without losing SEO data
- Custom design — Miior's brand required a unique, minimalist design reflecting the brand's DNA
- Performance — the previous platform had poor Core Web Vitals scores affecting SEO and conversion
- Expanded product descriptions — each product has a detailed ingredient description explaining their effects
Our solution
Based on detailed requirements analysis, we chose Shopify Plus as the target platform. Key solution elements:
We designed and built a custom Shopify theme based on a Design Token system — every colour, font and spacing stored in CSS variables, allowing brand changes without developer intervention.
Theme optimised for Core Web Vitals: lazy loading images, critical CSS inline, JavaScript minimisation. Results after launch: LCP below 2.5s, CLS below 0.1.
The key project element — product page designed as a "clean beauty manifesto": expanded ingredient section with filtering and explanation of each ingredient, dosage and usage method visualisation, dynamic refresh without page reload.
- Klaviyo — customer segmentation by product preferences and automatic recommendations
- Yotpo — review collection and display with purchase verification
- Matrixify — product catalog management and regular update imports
- Google Shopping — product feed with expanded data (ingredients as custom attributes)
Migration and launch
Migration was carried out in 4 phases:
- Product, collection and metafield import (ingredients, certificates)
- Customer and order history import via Matrixify
- Configuration of 301 redirects for all changed URLs
- Cutover during a weekend with low traffic, with 24/7 monitoring for the first 72 hours
Results after launch
Results measured over 90 days after launch vs equivalent period on the previous platform:
- +34% — increase in conversion rate
- +28% — increase in average order value
- -62% — reduction in cart abandonment
- +41% — increase in organic traffic (Core Web Vitals improvement)
- +89% — increase in reviews collected (Yotpo implementation)
One client said after launch: "Finally the store looks as I imagined the brand from the beginning — minimalist, transparent and with care for every detail."
Summary
The Miior project is an excellent example of how Shopify Plus can transform the shopping experience in a way that directly translates to business results. The key was the custom design reflecting the brand's DNA and performance optimisation that improved both SEO and conversion.
Have a project similar to Miior? Contact us — we'd love to discuss the possibilities for your brand. You can also see the full Miior case study.
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