Lifecycle Assessment (LCA) per product, when is it worth investing in?

LCAs are expensive ($3k, $25k per SKU through firms like Sphera, Carbon Trust, EcoChain, Quantis) and most brands can’t justify it for their full catalog. Three rules:

• Hero SKUs only, top 5-10 SKUs by revenue. Allbirds publishes LCA for ~30 shoes, not all ~200. Patagonia publishes for ~50 hero items, not all ~2,500.
• Category-level LCAs are fine for non-hero, one LCA per fabric type (organic cotton tee, recycled poly fleece, etc.), applied to all SKUs in that family. EU Green Claims Directive accepts category-level if disclosed.
• Skip LCA if you don’t have the data infrastructure, an LCA is only as good as the supplier data feeding it. If your factory list isn’t mapped and your tier-2 suppliers are unknown, the LCA is garbage. Fix the supply-chain map first, LCA second.

On Magento: LCA data lives as product attributes (kg-CO2, L-water, m2-land, % renewable energy, % recycled content). Rendered as a structured PDP block with sources cited. The trap is keeping it current, LCA data drifts as suppliers change; build a 12-month re-audit cycle into the retainer or it goes stale and becomes a liability.

Cost-benefit: a per-SKU LCA on a $80 hero shoe with 50k unit/yr sales costs $5k once + $1k/yr maintenance, pencils out as a 1% conversion lift. Worth it for hero SKUs, not for long-tail.