Closed-loop coral ecotox lab

Dive into coral

Coral ecotoxicology testing for cosmetics and marine programs, up to 50 coral species across 30 genera, in a closed-loop laboratory in Brittany, producing EC50, LOEC and NOEC data you can publish, defend, and file.

Choose your vertical Go deeper

The methodology

Go Deeper

Descend through the closed-loop method, depth by depth, from the free pre-evaluation at the surface to three-month chronic exposure at the deep horizon. The endpoints, the proof, and why R&D and regulatory teams choose ReefTox.

Predicted coral risk

  • Low
  • Moderate
  • High
  • Very high
010 mSurface

It starts before any coral is exposed

Every cosmetic engagement opens with a free predictive pre-evaluation, six formulation pillars plus ICP-OES water analysis, scoring risk and routing the formulation to a compatible coral panel.

Close-up of a branching Acropora colony cultivated under aquarium lighting in the ReefTox closed-loop laboratory
0212 mThe closed loop

Coral cultivated in Brittany, never harvested

Mother colonies are grown on-site in a closed-loop laboratory. Cuttings are produced under one roof, so every batch carries traceable provenance, with no wild collection.

Coral fragments mounted on plugs across the ReefTox exposure grid during a live-coral test
0330 mThe bioassay

Live-coral exposure at realistic concentrations

Acute testing runs 96 hours of live-coral exposure across up to 50 coral species and 30 genera, with 6 replicates and 6 blanks, producing EC50, LOEC and NOEC.

Labelled glass test vessels holding coral fragments during a chronic exposure study at the ReefTox laboratory
0490 mThe deep horizon

Three months of chronic exposure

Added as an optional program, a 3-month chronic study plus one month of recovery resolves the slow, sub-lethal effects an acute-only design would miss, the evidence a defensible environmental dossier rests on.

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Why R&D and Regulatory Teams Choose ReefTox

A live coral colony cultivated on its plug at the ReefTox closed-loop laboratory in Arzal, Brittany
Every colony we test is grown in our own closed-loop system in Brittany, never taken from a reef.
  1. 01

    Closed-loop Brittany lab

    Mother colonies, cuttings, testing, assessment, all under one roof in Arzal. No wild sampling, and a fast 2 to 3 week acute turnaround.

  2. 02

    Up to 50 species, 30 genera

    Hard SPS, hard LPS, and soft corals representative of Indo-Pacific, Caribbean, and Mediterranean reef ecosystems.

  3. 03

    Rapid turnaround

    A 2 to 3 week acute turnaround, thanks to the closed-loop lab.

Endpoints

Publishable. Defensible.

Labelled exposure vessels in a concentration series under blue light in the ReefTox laboratory
Each exposure runs as a labelled concentration series, six replicates and six blanks per concentration, so every endpoint traces back to a specific vessel.
Acute · 96h EC50 · LOEC · NOEC · bleaching · tissue loss · necrosis · mortality
Chronic · 3 months + 1 month recovery EC10 · EC50 · Chronic PNEC
Measured parameters Bleaching · tissue loss · mortality · before / after photography

Start your program

Cosmetic formulations start with a free predictive pre-evaluation. Marine programs start with a scoping call.

A wide frag rack of cultivated corals over rockwork under actinic light in the ReefTox closed-loop system
Cosmetics & SPF → Marine & Industrial →