Seqens has more than 50 years of experience in up-scaling and custom manufacturing of small molecules and polymers for the personal care and cosmetic industries. We successfully operate multi-step syntheses while complying with our quality standard inspired from GMP guideline.

Benefit from our extensive expertise in active ingredients

Seqens strong expertise in specialty ingredients relies on multi-step synthesis of complex molecules, extraction and purification of bio-actives and functionalization of specialty polymers, such as acrylics, siloxanes, PEG, polyamides and PLGA. The main active ingredients we manufacture on a custom basis are anti-fungal, anti-bacterial, anti-wrinckles, anti-ageing, and UV-filters. There is no limit in the properties we are able to provide to our customers.

Rely on our quality system committing to the most stringent standards

Seqens manufactures cosmetic actives in several sites in Europe, with a specific quality standard adapted to the cosmetic industry. When required, we can manufacture cosmetic ingredients in GMP compliant facilities inspected by the American Food and Drug Administration (FDA) and other national administrations.


We offer a wide array of tailor made botanical ingredients thanks to a high-level knowledge in botanical extractions.


Extend your technology portfolio with bio-manufacturing capabilities

With Proteus, a subsidiary of SEQENS, we offer active ingredients manufactured by bio-catalysis. Thanks to our technological platform, we design and produce high-performance enzymes and microbial strains for use in bio-catalysis. This enables us to offer innovative industrial solutions for bio-procedures using these enzymes and strains.

Our locations

Address PCAS, 70 Allée Graham Bell
30000 Nîmes
Phone +33 4 66 70 64 64
Market Pharmaceutical, Specialty Ingredients & Cosmetics
More information

Surface: 1, 000 m²

Lab surface: 500 m²


  • 1 kilo-lab in fermentation (80 L total capacity)
  • Robotic platform for highthroughput screening (HTS)
  • Analytical platform for chromatography (GC, GC-MS, U-HPLC)

Flagship technologies: 

  • Protein engineering
  • Microbiology aerobic & anaerobic
  • Syngas fermentation
  • Enzymes & strains fermentation
  • Biochemistry
  • Biocatalysis
  • Design of experiments (DoE)
  • Data mining

Number of scientists: 19

EcoVadis CSR Rating: Silver Certification


Address PCAS, ZI de Limay 2, 8 Rue de Rouen
78440 Porcheville
Phone +33 1 34 79 57 00
Market Pharmaceutical, Specialty Ingredients & Cosmetics
More information

Surface: 40, 000 m²

Lab surface: 2, 000 m²


  • 4 kilo-labs
  • 2 cGMP pilot plants with 11 multipurpose reactors from 100 L to 2, 800 L (total capacity of 12 m³)
  • Temperature range: -15/+150°C  (hastelloy reactor: -80/+200°C)
  • 3 finishing rooms (agitated filter dryers, filters, dryers, milling and sieving equipments)

Flagship technologies:

  • Crystallization expertise and technologiesd(salt, co-crystal and polymorph screenings, process development)
  • Process Safety expertise and tecnologies
  • Flow chemistry for fine chemicals
  • Potent API process development
  • Genotoxic Impurities
  • Issue Management
  • Generic A.P.I Solid state expertise

Last inspection: ANSM  October 2018

Certification: GMP

Number of scientists: 110

Other: Ecosystem Pharma with integrated services

Address PCAS, 15 Avenue des Frères Lumière
38300 Bourgoin-Jallieu
Business Line Contract Manufacturing & Fine Chemicals
Phone +33 4 74 93 63 33
Market Pharmaceutical
More information

Flagship technologies: Distillation

EcoVadis CSR Rating: Gold Certification

Address PCAS, Route de Lassay
61410 Couterne
Business Line Lubbricant Additives, Fine Chemicals
Phone +33 2 33 37 50 20
Market Specialty Ingredients
More information

Surface: 120, 000 m²


Capabilities: 190 m³ of ISO 9001 reactors and kilo-lab

Flagship technologies: Most standard organic synthesis reactions (large volumes)