Brown seaweed
Bladderwrack, dried and milled
Fucus vesiculosus — Fucus Vesiculosus Extract
The default Run below is Brittany, France, 0.51 kgCO2e/kg gross, Category C. Published values for this ingredient span 0.42 to 2.90 kgCO2e/kg, which is why a number without its production parameters is not worth forwarding.
Species record
- Species
- Fucus vesiculosus
- INCI name
- Fucus Vesiculosus Extract
- Group
- Brown seaweed
- Harvest methods
- Hand-cut intertidal harvest
- Conservation status
- Not assessed by IUCN. Local stock declines recorded in the Baltic.
- Typical uses
- Cosmetic extracts, supplements, thalassotherapy.
- Declared unit
- One kilogram of dried, milled bladderwrack at 10% residual moisture.
- Typical gross range
- 0.42 to 2.90 kgCO2e/kg, Category C
- Default sourcing region
- Brittany, France, Route distance, Roscoff to Rotterdam gate
- Limitation. The published evidence for this species is thin, so the default run is Category C.
- A Category B result needs your own drying energy and yield records.
Calculator
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Line-item inventory
| Line | Scope | kgCO2e/kg |
|---|---|---|
| Harvest and vessel fuel4.8 kg wet biomass at 1.80 l diesel per tonne2.68 kgCO2e/litre · IPCC 2006 Guidelines Vol. 2 stationary and mobile combustion, AR6 GWP100 · Category B | 1 | 0.023 |
| Drying energy4.42 kWh/kg on the France grid0.0573 kgCO2e/kWh · IEA Emission Factors 2024, national average generation intensity · Category B | 2 | 0.253 |
| Extraction, milling and utilities1.18 kWh/kg on the France grid0.0573 kgCO2e/kWh · IEA Emission Factors 2024, national average generation intensity · Category B | 2 | 0.067 |
| Fuel supply chain, well-to-tank0.009 l diesel upstream0.64 kgCO2e/litre · UK DESNZ conversion factors 2024, WTT diesel · Category B | 3 | 0.006 |
| Harvest gear and cultivation inputsGear, seed, nutrients and process chemicals, amortised0.009 kgCO2e/kg · Published intertidal brown algae LCA literature, thin evidence base, gross cradle-to-gate. · Category C | 3 | 0.009 |
| Inbound haul, wet biomass4.8 kg over 60 km by road, Brittany, France0.096 kgCO2e/t-km · GLEC Framework v3.0 default, >32t diesel truck · Category B | 3 | 0.028 |
| Outbound freight, finished ingredient1 kg over 900 km, road freight, heavy goods0.096 kgCO2e/t-km · GLEC Framework v3.0 default, >32t diesel truck · Category B | 3 | 0.086 |
| Packaging0.030 kg kraft multiwall paper sack per kg1.10 kgCO2e/kg · Published European kraft sack paper EPD range, mid-point · Category C | 3 | 0.033 |
| Gross footprint | 1+2+3 | 0.506 |
Every factor and its source is printed in the Report. The full factor set is on the Methodology page.
Gross footprint, cradle-to-gate
The published evidence for this ingredient is thin, so this run is a screening estimate.
Scope 1
4.6%
Harvest and fuel
Scope 2
63.5%
Purchased electricity
Scope 3
32.0%
Upstream and freight
Largest lever: drying energy, 0.25 kgCO2e/kg of the total, Category C.
Batch total for 500 kg: 252.8 kgCO2e
Biogenic uptake
0.89 kgCO2e/kg
Reported separately. Non-permanent. Not subtracted.
Land-based comparison
Bluecarbon Methodology 2026.2, Category C.
Published dairy protein LCA range, mid-point. Category C.
Published livestock LCA range, mid-point. Category C.
Published bovine hide and bone processing LCA range, mid-point. Category C.
Blue Bioeconomy Score: 100.0th percentile within the peer set of 6 brown seaweed defaults in this database, Methodology 2026.2.
Get the Report
€390- Line-item inventory, every emission factor with its source
- Gross footprint with its Category grade, and the Scope 1/2/3 split
- Biogenic uptake reported separately, never subtracted
- Peer set and Blue Bioeconomy Score, with the peer set named
- Reduction section, quantified in kgCO2e/kg
- Methodology version, limitations, and the colophon
One ingredient, one Run, Fucus vesiculosus, Category C. Nothing recurs.
This Run is Category C — representative averages, screening only. It is honest and it is weaker than a Category B Report.
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