Sel Sanayi develops and manufactures clinically proven hydrocolloids, collagen, peptides, proteins and bioactive ingredients for the nutraceutical, food, cosmetics and pharmaceutical industries. From raw material to finished active, all under one roof in Turkey.
Sel Sanayi has worked with protein and collagen for more than 60 years. What began in 1961 as a producer of technical gelatine from bovine hides is today a science-led manufacturer of hydrocolloids, collagen, peptides, proteins and bioactive ingredients that are studied in the clinic and supplied to brands around the world.
We control the full chain. We select the raw material, run the hydrolysis and purification, grade each peptide for its target application, and validate the result in peer-reviewed clinical trials. That is why formulators trust our ingredients to behave the same way in the laboratory and in the body.
Our flagship is CollaSel: clinically studied hydrolyzed collagen peptides and lab-verified collagen tripeptides, supplied to brands worldwide. Around it we have built a wider family of peptides, proteins and bioactives for skin, joints, regeneration and metabolic health.
We select bovine, fish and specialty raw materials and run hydrolysis and purification in a facility accredited to the European Union, with full traceability across every batch.
We control molecular weight and grade each peptide for its application, from skin and joint support to metabolic and regenerative products.
We run controlled human studies and laboratory studies, and publish the results in peer-reviewed journals, so our partners can stand behind every benefit they communicate.
Our core range is CollaSel hydrolyzed collagen peptides and collagen tripeptides, supported by a growing family of bioactives and protein derivatives.
Our flagship hydrolyzed collagen peptide and collagen tripeptide. Low molecular weight, cold-water soluble and backed by clinical and in vitro studies for skin, joint and metabolic benefits. CollaSel was the first bovine collagen tripeptide produced in the world.
Edible bovine gelatine for food and supplement applications. SelJel was the first halal edible bovine gelatine produced in Turkey.
Pharmaceutical grade gelatine for soft and hard capsules and other pharmaceutical applications.
Published human and laboratory studies stand behind the CollaSel range, with more in progress.
A controlled human study on skin condition and the supporting role of collagen tripeptide supplementation.
A controlled human study on joint comfort and function in participants with osteoarthritis.
In vitro research with the University of Milan in which CollaSel Tripeptide raised GLP-1 by 16.9% and inhibited DPP-IV.
Active ingredients for capsules, sachets, gummies, powders and functional supplement formulations.
Functional food, granules, beverages, liquid food and protein drinks.
Skin and hair care, and advanced regenerative and aesthetic formulations.
Soft and hard capsules, and other pharmaceutical applications.
Sel Sanayi is a subsidiary of Tezman Holding, a leading Turkish industrial group founded in 1948. From a single product in 1961, Sel Sanayi has grown into a focused producer of hydrocolloids, collagen, peptides, proteins and bioactive ingredients with a global customer base.
Production is accredited to the European Union and carried out in line with European Union food norms. Every operation is traceable through a dedicated control system, so quality is built in at each step rather than checked at the end.
Tezman Holding A.Ş.
Havsa, EdirneSel Sanayi runs on continuous improvement, exceeding customer expectations and meeting every legal and regulatory requirement for quality, halal, kosher and food safety. Product quality and safety always come first, with hazard analysis and risk management carried out in line with good manufacturing practices. Our management system is established to FSSC 22000, ISO 9001:2015, ISO 22000:2018, GMP, TS OIC/SMIIC 1:2019, the Halal Food Standard and Kosher certification.
More than 60 years of working with collagen at the molecular level, paired with an active human and laboratory research program and AI-supported analysis of absorption and formulation performance.
Six decades of collagen and gelatine processing, from raw hide to a defined peptide, give us deep control of the raw material.
Hydrolysis controlled to target molecular-weight profiles, matched to each application and customer.
Human and laboratory studies, published in peer-reviewed journals, backed by AI-supported analysis of peptide behaviour.
Custom formulation and private-label hydrolysis, with technical support from concept through to scale.
We manufacture by environment-friendly methods, work to prevent pollution, comply with the relevant legislation and standards, and audit and measure our operations. Our environmental policy is managed as one whole with our quality systems.
We seek methods that keep waste generation to a minimum across every manufacturing activity, and that return waste to use through recycling.
We protect natural resources and use water responsibly, keeping our wastewater free of any substance that could harm water sources.
We comply with the relevant laws and standards, train our employees accordingly, and raise environmental awareness among our people and our stakeholders.
We hold a high standard of ethics across the supply chain, aligned with the Ethical Trading Initiative Base Code and the conventions of the International Labour Organization.
Press coverage and the fairs and events where you can meet the team.
CollaSel, led by CEO Selim Tezman, showcased its latest innovations at Vitafoods Europe 2026, one of the leading nutraceutical events in the world.
Event site
CollaSel took part in SupplySide Connect New Jersey 2026.
CollaSel exhibited its products at Vitafoods Europe, the leading nutraceutical event in the world.
CollaSel attended SupplySide Connect New Jersey, connecting with professionals across the supplement, food and beverage sectors.
CollaSel, with its strong position in the collagen sector, took its place at Fi Europe 2025.
CollaSel participated in Vitafoods Europe, the largest nutraceutical trade show in Europe.
CollaSel took place at Vitafoods Asia 2024.
CollaSel took its place at Fi Africa, the leading international food ingredients fair in the MENA region.
CollaSel took its place at the largest nutraceutical fair in Europe, Vitafoods 2024 in Geneva.
CollaSel took its place at Fi Africa, Africa Food Manufacturing 2023, held in Cairo, Egypt.
Sel Sanayi took its place at Vitafoods Europe 2023, the most prestigious fair for nutraceutical and functional food ingredients.
Sel Sanayi CEO Selim Tezman at Vitafoods Europe 2021 in Geneva, Switzerland, with Biogel Managing Director Roland Fischer.
Event site
Fi Europe, Paris.
Gulfood Manufacturing, Dubai.
We hosted Ali Poyrazoglu in Gonen.
We exhibited at the Fi Frankfurt fair.
We were at Dubai Gulfood.
We hosted Ali Poyrazoglu in Antalya.
We attended the Fi Istanbul fair.
We hosted Ali Poyrazoglu in Gonen.
We exhibited at the Fi Istanbul fair.
We exhibited at the Fi Istanbul fair.
We attended the 3rd Halal and Healthy Food Products exhibition.
We were at the Food Products and Technologies Fair with Hedefsan.
Request a sample, a specification sheet or a partnership conversation.
Hacıahmet Mahallesi, Irmak Caddesi No. 1-9, DLP İş Merkezi İç Kapı No.19
34440 Beyoğlu, Istanbul
Telephone: +90 212 253 62 40
Fax: +90 212 253 77 78
info@selsanayi.com
Yeni Mahallesi, Baglardere Mevkii No: 2
22500 Havsa, Edirne, Turkey
Telephone: +90 284 336 11 15 / +90 284 336 11 18