KLK Kolb
KLK Kolb – Your Trusted Partner for Pharmaceutical Excipients
Our Company
About KLK Kolb: KLK Kolb, headquartered in Hedingen, Switzerland, is a leading manufacturer and supplier of pharmaceutical grade excipients. With a strong commitment to quality, innovation, and customer satisfaction, Kolb has established itself as a trusted partner in the pharmaceutical industry working with many of the well-known top pharmaceutical and biopharmaceutical companies for prescription and OTC drugs.
SEE KLK Kolb EXCIPIENTS IN the SHOP
Our Expertise
Excipients
Kolb specializes in the production of high-quality excipients, including Macrogols, Polysorbates, and Sorbitan Esters as well as tailormade products according to specific customer requirements. These essential ingredients play a crucial role in pharmaceutical formulations, enhancing API stability, improving solubility, and increasing drug bioavailability.

Hedjuvan
HEDJUVAN is a Swiss-made excipient used in pharmaceutical applications. It finds extensive use in the human and veterinary pharmaceutical industry, as well as in biopharmaceutical processes, blood protein extraction, diagnostics, and other areas. This versatile excipient can be incorporated into various dosage forms, including tablets, capsules, syrups, ointments, intravenous and subcutaneous applications.
Product Range
Choose KLK Kolb for reliable, high-quality excipients that drive innovation in pharmaceuticals.
SEE KLK Kolb EXCIPIENTS IN the SHOP
Our Unique Offerings
Hedjuvan brand is a commitment to put the patient in the centre of our everyday doing.
We listen! We go the extra mile if you need a specific analytic that is not part of any standard pharmacopeia to assure that you have the highest quality product for your needs.
Our surfactants are not only present in human and veterinary medication, but also in diagnostic test and bioprocesses along the value chain of the pharmaceutical industry.
Certification, Membership and Award – Quality Assurance![KLK_Excipact]()
EXCiPACT GMP Certified: KLK Kolb has been awarded the EXCiPACT GMP. This certification demonstrates our commitment to manufacturing excipients according to the EXCiPACT Certification Standard for Pharmaceutical Excipient Suppliers.
Assured Consistency: Due to long time experience in esterification and alkoxylation, our excipients maintain consistent product composition (batch to batch consistency).
IPEC Europe Membership: Since 2018, KLK Kolb is an active member of IPEC-Europe and therefore we are in close exchange with other excipient producers, associations and authorities. This supports us to provide our customers also with the current and future hot issues of the pharmaceutical industry.
Kosher | Halal: All of the KLK Kolb pharmaceutical grade excipients are Kosher and Halal compliant products. Some of them are certified and for some of them statements are available.
Free of Animal-Based Materials
To exclude any contamination with material of animal origin, the whole production site is free of animal-based raw materials and processing aids.
Competence and Experience
60 Years of Expertise: With over six decades of experience in manufacturing Polysorbates, Sorbitan Esters, and other non-ionic surfactants, we have mastered the complexities of ethoxylation and esterification.
Customization: Beyond standard excipients, we collaborate with customers to develop tailor-made products that perfectly suit their specific applications in the pharmaceutical industry.
Regulatory Support: KLK Kolb is a member of IPEC Europe and actively works in several works streams to advance the future of quality excipients.
Sustainability – RSPO
KLK Kolb is a subsidiary of Kuala Lumpur Kepong Berhad (KLK), a prominent international plantation group headquartered in Malaysia. This affiliation ensures that KLK Kolb is back-integrated for most of the fatty acids used in the production of our sorbitan esters and polysorbates.
KLK was a founding member of the Roundtable on Sustainable Palm Oil (RSPO) in 2004 and played a significant role in developing a comprehensive Sustainability Policy in 2014. This policy, based on the RSPO’s Principles and Criteria (P&C), emphasizes commitments to No Deforestation, No Peat, and No Exploitation (NDPE).
As a result, KLK Kolb offers all sorbitan esters and polysorbates in RSPO mass balance (MB) grade where applicable.
Roundtable on Sustainable Palm Oil (RSPO)
Established in 2004, the RSPO is a global, non-profit, multi-stakeholder initiative dedicated to sustainable palm oil. It unites over 4,000 members worldwide, representing all segments of the palm oil supply chain. These members include growers like KLK, processors, traders, consumer goods manufacturers, retailers, financial institutions, and environmental and social non-governmental organizations from various countries involved in palm oil production and usage.
The RSPO’s objective is to promote the growth and use of sustainable palm oil products through credible global standards and multi-stakeholder governance. It has developed a set of environmental and social criteria to achieve this goal.

Why Choose KLK Kolb

Quality in Processes and Products: Our excipients undergo rigorous quality checks, and every step of the manufacturing process is documented to ensure consistent excellence.
Smart Solutions: We understand that APIs require the right carrier for optimal solubility and bioavailability. Kolb excipients provide smart solutions for pharmaceutical formulations.
Dedicated Teams: Our committed teams are in close contact with pharmaceutical companies to meet their unique needs.
Global Impact: Our products are part of globally known drug brands, contributing to advancements in healthcare and biotechnology.
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Contact:
Kolb Distribution AG
Maienbrunnenstrasse 1
8908 Hedingen
Switzerland
Mail: [email protected]
Phone: +41 44 762 46 46
Choose KLK Kolb for reliable, high-quality excipients that drive innovation in pharmaceuticals. Contact us today to explore our wide range of portfolio.