ADVATIS SAFE2 STEMCHOICE® 50mL, 250mL, 500mL, 750mL Cryogenic Freezing Bags STEMCHOICE® is a freezing bag product group under the SAFE2 brand, designed for the storage and preservation of stem cells and other biological materials in liquid nitrogen, liquid nitrogen vapor, or at low temperatures.

Ultimate Protection for Your Valuable Cellular Products: Advatis SAFE2 STEMCHOICE®

In stem cell therapies, cord blood banking, and regenerative medicine applications, preserving the viability of valuable biological material obtained with great effort is of vital importance. The Advatis SAFE2 STEMCHOICE® series are high-standard freezing bags specially developed for the long-term and safe storage of the most sensitive cellular products at ultra-low temperatures (liquid nitrogen phases).

Thanks to its biocompatible and highly durable special polymer structure, these bags show superior resistance to severe thermal shocks during freezing and thawing processes; minimizing the risk of breakage or leakage. With its design suitable for closed system operation and user-friendly secure port structures, it eliminates the risk of contamination, while its full compliance with GMP and international medical device regulations allows it to be used safely in your critical processes (e.g., DMSO applications). Choose the safest “vault” for the future of your cells.

Review our product catalog for detailed information on different volume options (e.g., between 25ml – 1000ml), port configurations, and technical certifications, or contact our experts for solutions specific to your project.

Download SAFE2 STEMCHOICE® 50mL, 250mL, 500mL, 750mL Freezing Bags Catalog!

SAFE2 Tissuechoice® CRYOGENIC FREEZING BAG TISSUECHOICE® is a product group offered under the SAFE2 Brand. These products are specifically designed for the storage and preservation of various biological tissues – such as skin, valves, blood vessels, grafts, cartilage, and solid tissues – in liquid nitrogen, liquid nitrogen vapor, or lower temperatures.

Maximum Mechanical Security for Your Valuable Tissue Samples: Advatis SAFE2 Tissuechoice®

In tissue banking and regenerative medicine research; long-term storage of priceless biological materials such as skin, heart valves, vessels, or bone fragments involves different challenges than liquid samples. The Advatis SAFE2 Tissuechoice® series are high-durability freezing bags specially designed for the safe cryopreservation of such solid and sensitive tissue samples at ultra-low temperatures (liquid nitrogen).

Produced from high-quality and biocompatible EVA (Ethylene Vinyl Acetate) material, these bags offer superior mechanical stability even in the harshest freezing and thawing cycles, minimizing the risk of bag breakage or puncture. With its structure fully resistant to common cryoprotectants like DMSO, transparency allowing clear view of the sample inside, and special port/closure design offering leak-proof security, it provides the safest environment for your tissue samples.

Review our product catalog for detailed technical information on standard sizes (e.g., 10×10 cm usage area), custom production options, and sealing protocols, or contact our experts for solutions specific to your project.

Download SAFE2 Tissuechoice® Tissue Freezing Bags Catalog!

SAFE2 Overwraps Safe and practical, the SAFE2 overwrap bag is double protection for samples and the freezing bag. It ensures safe cryopreservation and prevents the risk of cross-contamination. One overwrap is provided for each bag. The material has the same performance as the primary bag and guarantees a durable final weld.

Extra Security Shield for Your Valuable Samples: Advatis SAFE2 Overwraps

In cryogenic storage, especially when it comes to priceless and irreplaceable products such as stem cells, cord blood, or genetic material, “single-layer protection” may sometimes not be enough. The Advatis SAFE2 Overwraps series is designed as a secondary outer security cover worn over your primary freezing bags.

The main purpose of these robust and biocompatible outer covers is risk management. In the rare event of a leak or breakage in the primary bag during freezing/thawing, the outer cover keeps the leak inside, preventing cross-contamination of other valuable samples in the tank. It also protects the primary bag against mechanical impacts and scratches during transport and storage. SAFE2 Overwraps act as “safety insurance” for your most critical samples.

Review our product catalog or consult our experts to determine cover sizes compatible with your existing primary bags and for detailed information on usage protocols.