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Supplier and ingredient control: the first guarantee of quality at Rioja Nature Pharma
23 Sep 2025
In the manufacture of food supplements, excellence begins long before production: it starts with the selection and approval of suppliers and the rigorous verification of each raw material.

At
Rioja Nature Pharma, we follow an internal approval procedure that ensures that
each ingredient complies with the most demanding technical, documentary and
regulatory standards. This process includes:
- Technical and documentary evaluation of each supplier.
- Verification of technical data sheets and certificates of analysis (CoA).
- Review of mandatory declarations (allergens, GMOs, irradiation, nanomaterials, WADA, etc.).
- Control of critical parameters: composition, contaminant limits and legal compliance.
- Final approval prior to first receipt, always validated by our technical team.
This level of rigour allows us to guarantee our customers the safety, transparency and quality of the supplements we develop together.
Thanks to our Technical Director, Rebeca Peñalva, for sharing the information necessary to write this publication, and for contributing her knowledge and leadership in building a control model that is key to our value proposition.
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