I am writing in English, hopefully this will not represent an issue in understanding. You are free to reply in French.
I have been your very satisfied customer for quite some time now. I really like your spirulina products. The reason I chose your brand of spirulina is because it is European-grown which makes me more assured in the safety aspects of spirulina.
Anyhow, the reason I am writing to you is I would like to know more specifics about the mineral content of your spirulina brand. (iron content for instance) I would appreciate if you could provide me with a certificate of analysis for this product. Hopefully that would be OK with you.