Technical informations
Botanical name	Oyster shell
Presentation	Powder
Packaging	25 kg
Origin	Marine

Oyster shell powder

Ingredient description

Oyster shell powder is a mineral byproduct made from shells collected along the coast of Brittany (France).

Through partnerships with local oyster farmers, unused shells are collected and processed into high-quality mineral powder. This upcycling initiative is part of a broader approach focused on the circular economy, sustainability, and the promotion of local expertise.

Origine géographique :

France

General Features

Origin

	Oyster shells
Appearance	Grey powder
Application	Tablets and capsules

Typical analysis :

Oyster shell powderRecommended dosage
(for authorized claims*)

	Calcium is the main component, in the form of calcium carbonate
Calcium [%] (ICP)	≥ 34%
	Starting at 400 mg of oyster shell powder per day, providing 120 mg of calcium

Nutraceutical properties

Oyster shell powder is a natural source of calcium, enriched with magnesium and trace minerals. Studies suggest that it provides calcium with good bioavailability and supports bone health. Calcium also helps maintain normal bones and teeth, as well as proper muscle function. * https://pmc.ncbi.nlm.nih.gov/articles/PMC4573138