Cosmetics & SPF

Coral ecotoxicology testing for cosmetic and sunscreen formulations and SPF ingredients

A closed-loop laboratory in Brittany, France. We cultivate our own coral mother colonies and run acute (96h) ecotoxicity tests on cosmetic formulations and SPF ingredients, with an optional 3-month chronic study (plus 1-month recovery), across up to 50 coral species and 30 genera, Indo-Pacific, Caribbean, and Mediterranean.

Every engagement begins with a free predictive pre-evaluation: six formulation pillars plus ICP-OES water analysis, with Hawaii Act 104, US Virgin Islands Act 8185, and Palau RPPL 10-30 ingredient-compliance screening built in. Brands get defensible, publishable coral ecotox results from their live-coral tests.

Closed-loop cultivation

Coral fragments on test plugs arranged in a dense grid under magenta actinic light, ready for acute ecotoxicity exposure in the ReefTox lab
Coral fragments cultivated closed-loop in the ReefTox lab in Brittany, mounted on plugs and staged for testing.

The predictive pre-evaluation

Before any coral is exposed, we score your formulation across six pillars plus ICP-OES water analysis.

The pre-evaluation is free, included with every engagement, and runs upstream of every live-coral test. It produces a risk classification (Low / Moderate / High / Very high) and routes your formulation to the compatible test panel, and screens it against Hawaii Act 104 (2021), US Virgin Islands Act 8185 (2020), and Palau RPPL 10-30 (2020) in the same step.

An overhead view of exposure beakers arranged in a grid inside the ReefTox incubation chamber under blue light in the ReefTox lab
A concentration series prepared in the ReefTox lab in Brittany.
How the pre-evaluation works

Inside the lab

Coral colonies on plates under blue light in the ReefTox lab, the stock the live-coral test panel is cut from

Coral test panel in the ReefTox lab, Arzal, Brittany. Each formulation is exposed to live coral fragments mounted on the testing grid before any result is scored.

Why R&D teams engage now

Reef-claim enforcement has moved from marketing pressure to active prosecution.

Macro detail of an Acropora coral colony cultivated in the ReefTox lab
An Acropora colony from the ReefTox coral cultivation system.

US enforcement

Santa Clara County DA (May to June 2025): multiple US sunscreen brands penalized or under settlement for "reef friendly" and "reef-safe" claims unsupported by ecotox data.

Federal anchor

FTC Green Guides (16 CFR Part 260) require "competent and reliable scientific evidence" for environmental claims. Coral ecotox data is what that means for sunscreen.

State + national bans

Hawaii Act 104 (2021), US Virgin Islands Act 8185 (2020), Key West (Jan 2021), Palau RPPL 10-30 (2020, 10 ingredients). Florida and California evaluating expansions.

EU pipeline

EU Green Claims Directive under negotiation. AGEC, REACH, Cosmetics Regulation Article 23, claim substantiation tightening across the bloc.

Every engagement begins with a free predictive pre-evaluation.

Six pillars, ICP-OES water analysis, and ingredient compliance screening, before any coral is exposed.

A row of nano cultivation tanks under their light pendants in the ReefTox lab in Brittany
The cultivation tank row under its light pendants in the ReefTox lab in Brittany.