The decision to outsource one's own production to an external contract manufacturer is a strategic milestone for many pharmaceutical companies and supplement brands. At the same time, it raises questions: How do you find the right partner? What should you pay attention to? And what does GMP compliance mean in practice?
In this post, we provide an overview of the most important aspects of GMP contract manufacturing in Germany – from the perspective of a contract manufacturer that has been producing pharmaceutical products for over 125 years.
What does GMP mean in contract manufacturing?
GMP stands for Good Manufacturing Practice – Good Manufacturing Practice. This is an internationally recognized set of rules that ensures medicines and health products are consistently manufactured according to defined quality standards.
In Germany, GMP requirements are in the Drug Law (AMG) and the Ordinance on the Manufacturing of Medicinal Products and Active Substances anchored. For food supplements, the provisions of the LMIV and the respective ordinances apply – although many reputable contract manufacturers also produce for supplements according to GMP standards, even if this is not legally required in every case.
GMP is not a certificate you get once and then have. It is an attitude that must be reflected in every process step – from raw material acceptance to batch release.
What should clients look for when choosing a contract manufacturer?
Choosing the right partner goes far beyond price comparisons. Here are the factors that make the difference in practice:
1. Manufacturing permit and certifications
Every contract manufacturer of medicinal products needs a Manufacturing permit according to § 13 AMG. This is issued by the responsible state authority and regularly reviewed through inspections.
2. Experience with your product category
A contract manufacturer who has been producing OTC pharmaceuticals for decades operates differently from one who primarily manufactures cosmetics. Ensure that the partner demonstrable experience with your specific product category – whether tablets, capsules, powders, homeopathic remedies, or dietary supplements.
3. In-house Production vs. Brokerage
Some providers on the market are intermediaries, not manufacturers. They take your order and subcontract production to third parties. This means: less control, longer communication channels, and potential quality risks. Prefer partners who produce in their own facilities.
Checklist: Questions for a potential contract manufacturer
- Do you have a valid manufacturing license according to § 13 AMG?
- Do you produce in your own facilities or through third parties?
- What dosage forms do you cover?
- At what batch size do you produce?
- What is your documentation and release process?
- Do you offer formulation development and scaling?
- Who is my point of contact throughout the entire collaboration?
How does a typical contract manufacturing process work?
The process from the initial inquiry to the finished batch typically follows a proven pattern:
- Initial consultation & needs analysis – Clarification of requirements: product type, dosage form, quantities, timeframe, regulatory status.
- Recipe development or takeover – Either you bring a finished formula, or the contract manufacturer will develop one for you. With private label, you choose from existing formulations.
- Sampling & Pilot batch — Production of a development sample for release. Optics, taste, tableting properties, and analytical values are checked here.
- Series production – GMP-compliant manufacturing with complete batch documentation, in-process controls, and quality testing.
- Packaging & Release – Filling, packaging, and labeling according to your specifications. Batch release by the qualified person.
The Importance of Documentation
In pharmaceutical production, the principle is: What is not documented, did not happen. For clients, this means: your contract manufacturer must be able to provide complete documentation for every batch – from raw material testing and manufacturing parameters to the certificate of analysis.
At Valphira, you receive a complete batch record for every batch, certificates of analysis for raw materials and finished products, and stability data upon request. This transparency is not only a regulatory necessity, but also the foundation for trust in a long-term partnership.
Conclusion: Partnership instead of service
The best contract manufacturing relationships are not purely client-supplier relationships. They are Partnerships, in which both sides benefit from each other. The contract manufacturer brings production expertise, quality assurance, and regulatory knowledge. The client brings market knowledge, brand understanding, and sales strength.
When both sides collaborate at an equal level, products emerge that convince the market – and a partnership that lasts for years.