Welcome to Iris Biotech
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Thank you very much for your interest in our products. All prices listed on our website are ex-works, Germany, and may attract customs duties when imported.
You may/will be contacted by the shipping company for additional documentation that may be required by the US Customs for clearance.
We offer you the convenience of buying though a local partner, Peptide Solutions LLC who can import the shipment as well as prepay the customs duties and brokerage on your behalf and provide the convenience of a domestic sale.Continue to Iris Biotech GmbHSend request to US distributor
Poly-arginines (PARs) are a class of poly(amino acids) that are a valuable alternative to PEGs. Unlike PEGs, polyarginines are biocompatible and biodegradable, so they do not accumulate in the body or cause an immune response. PARs can be used as carriers for pharmaceuticals, or for the multivalent presentation of molecules. They are well known for their ability to enhance cell penetration and to inhibit protein aggregation. Other applications are e.g. the formation of nano capsules.
Iris Biotech offers PARs of different lengths (20 to 200 units).