HyDD is a trusted supplier of recombinant Human Serum Albumin, delivering high-purity, animal-free rHSA to researchers, biotech companies, and manufacturers worldwide.
HyDD has been devoted to the research and development of recombinant HSA since 1997, establishing a high-expression-level system for rHSA in Yeast.
Our purification patent has been granted in 13 countries, and we have demonstrated structural equivalence between rHSA and native HSA.
HyDD is a specialized supplier of recombinant Human Serum Albumin, providing top-quality, animal-free rHSA to life science organizations around the world.
Our mission is to make high-purity, animal-free biological materials accessible and reliable for researchers, biotech companies, and medical device manufacturers worldwide.
We are committed to rigorous quality standards, lot-to-lot consistency, and a secure, reliable supply chain — so your science never stops.
rHSA is a 10% or 20% solution manufactured without any animal or human derived ingredients. This eliminates concerns about possible contamination from adventitious agents of animal or human origin, such as viruses or other infectious agents.
rHSA is ideally suited for media development, optimization, or supplementation and is a perfect substitute for human serum albumin in circumstances where animal-free conditions are required.
Produced using a validated yeast expression system, our rHSA achieves structural equivalence with native HSA while delivering superior lot-to-lot consistency and lower endotoxin levels than plasma-derived alternatives.
Available in both 10% and 20% formulations to meet the precise needs of your application.
No animal or human derived ingredients in the manufacturing process.
Free from viral and prion contamination concerns.
Greater homogeneity and ≥99% purity compared to plasma-derived HSA.
Reliable, reproducible results across every production batch.
Stable, reliable supply chain with established global networks.
Absence of plasma-derived impurities and minimal endotoxin levels.
rHSA has been successfully approved or evaluated across a wide range of customer-driven applications.
Medium component for cell culture, cryopreservation and stem cell expansion
Drug delivery formulation to transport therapeutic peptides and proteins
Intermediate buffer optimization
Protein, peptide, or vaccine formulation
Peptide conjugation for half-life extension
Nanoparticle delivery of small-molecule drugs
Medical device coating
Albumin gel formation for wound sealants and related products
IVF media
Stem cell media
In compliance with USP assay specifications.
| Assay | Specification |
|---|---|
| Protein Content | 190–220 g/L (20%) | 95–110 g/L (10%) |
| Octanoate | 0.140–0.180 mmol/g protein |
| Sodium | 120–160 mmol/L |
| Purity | ≥ 99% |
| pH | 6.4–7.4 |
| Identity | Profile comparable to standard |
| Endotoxin | < 0.0083 EU/mg |
| Sterility | Passes |
| Appearance | Clear, slightly yellow/amber solution |
| Species | Animal-free |
| Storage | Shipping and storage at 2–8 °C |
Interested in rHSA or any of our life science products? We'd love to hear from you.
Whether you are exploring rHSA for a new application, need technical specifications, or want to discuss supply arrangements — our team is ready to assist.