The white oyster shell Manually collected on Breton coastal beaches, our oyster shells are washed with clear water and reduced to powder to enrich our products. It has many benefits for skin and body. Its quality Our oyster shell powder is rich in calcium, mineral salts and trace elements. It is non-irradiated, un-ionised and additive-free.COSMOS approved by ECOCERT Greenlife, it is in compliance with the NATURE & PROGRES charter. Its properties Remineralizing, it restores skin glow day after day. Exfoliating, it helps clean impurities and dead cells off the skin while returning its softness and elasticity. Softly abrasive and rich in calcium, it provides the toothpaste with the efficiency of daily hygiene. Absorbing, oyster shell powder reduces shine on oily skins. Ultrafine, it adds volume and softness to your hair.