Shampoo (250ml plastic bottle)

Material Composition Assumptions

The 250ml shampoo bottle comprises multiple components with distinct environmental footprints. The HDPE plastic bottle body represents approximately 25 grams of the total product weight, constituting roughly 8% of the complete package. The PP pump mechanism adds another 5 grams, contributing about 2% to overall mass. The liquid formulation makes up the majority at 250 grams, representing 83% of total weight. Within this formulation, water comprises the largest share at approximately 200 grams. Petrochemical-derived surfactants including sodium laureth sulfate and cocamidopropyl betaine account for roughly 25 grams of the liquid content. Preservatives and synthetic additives make up the remaining 25 grams of formulation weight. The complete packaged product totals approximately 300 grams.

Manufacturing Geography

Primary manufacturing occurs in China, where the majority of global personal care products are produced due to established supply chains and lower production costs. The Chinese electricity grid operates at 555 gCO2/kWh intensity according to International Energy Agency data, reflecting the country’s coal-heavy energy mix. This carbon-intensive grid significantly impacts the manufacturing phase emissions for both the plastic packaging and chemical formulation processes. Many multinational brands utilize Chinese contract manufacturers for cost efficiency, though some premium products may be manufactured in regions with cleaner energy profiles such as Europe or North America.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2/kWh	48	Baseline
India	708 gCO2/kWh	52	+8% higher
Germany	348 gCO2/kWh	44	-8% lower
France	57 gCO2/kWh	38	-21% lower
United States	386 gCO2/kWh	45	-6% lower

Provenance Override Guidance

1. Manufacturing facility electricity consumption data with renewable energy procurement documentation to replace grid intensity assumptions
2. Detailed bill of materials with supplier-specific environmental product declarations for plastic resin and chemical surfactants
3. Transportation records showing actual shipping distances and modal splits from manufacturing to distribution centers
4. Packaging specifications including exact plastic weights, recycled content percentages, and barrier material requirements
5. Formulation details with biodegradability data and renewable versus petrochemical ingredient ratios

Methodology Notes

• The CCI score represents cradle-to-grave emissions including consumer use phase with hot water heating assumptions
• Scope 1 emissions reflect direct manufacturing processes and raw material production under operational control
• Scope 2 captures electricity consumption during manufacturing and chemical processing operations
• Scope 3 dominates due to consumer use phase hot water heating representing typical washing behavior patterns
• Functional unit assumes single 250ml bottle lasting average household 4-6 weeks with daily washing frequency
• Score excludes retailer refrigeration, consumer transportation to point of purchase, and post-consumer recycling infrastructure
• Data gaps exist around ingredient sourcing geography and manufacturing facility efficiency variations across suppliers