I appreciate your request, but I need to flag an issue: „na 12 490“ does not appear to be a recognized supplement ingredient name in EU or international databases. This looks like it may be a product code, database reference, or internal identifier rather than an actual ingredient.

To write compliant, accurate copy for your customers, I need clarification:

– **What is the actual ingredient name?** (e.g. magnesium, vitamin D, curcumin, ashwagandha, etc.)
– **Is there an alternative name or common reference?**

Once you provide the correct ingredient, I’ll immediately deliver a warm, EFSA-compliant 3-paragraph description in Czech that meets all your specifications.

Thank you for understanding — accuracy and compliance are how we serve your family and customers best. 🌱