Arkogélules Lain, highly concentrated in targeted active ingredients, aids remineralization. It is beneficial for bones and joints. The aerial parts of the equine are beneficial for your health by contributing to bone and joint remineralization. Equestail (Equisetum arvense), also known as "horsetail," is a true living fossil: it has existed on our planet since the primal era, more than 250 million years ago!