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Okagel is a sterile Gelatin Methacryloyl (GelMA) hydrogel product. We offer Okagel in both ready-to-use liquid form and powder form. Both forms are suitable for long-term storage. Okagel has a high degree of cell viability and a relatively low rate of degradation compared to other commercial GelMA products. It arrives at your door ready to use for all your research and 3D bioprinting needs.

Okagel is compatible with a variety of photoinitiators. We recommend using the complimentary Irgacure photoinitiator that comes with every purchase of Okagel. Make sure to fully dissolve the photoinitiator with the liquid GelMA before attempting to crosslink. Once the Irgacure is fully dissolved take care not to allow unwanted light exposure to the Okagel. To retain cell viability, exposure times of <3 minutes with UV light wavelengths above 400 nm should be used.

Okagel is temperature sensitive and forms a solid gel at room temperature (approximately 22℃). At temperatures above 37℃ the viscosity of Okagel is much lower and the material acts as a liquid. The gelation and viscosity of uncrosslinked Okagel may be freely manipulated within the temperature range of 1℃ to 60℃.

We recommend Okagel be stored in an opaque waterproof container. Okagel should be kept in cold storage under -20℃ and away from direct contact with light. Please note that it is recommended that after the product is prepared with the accompanying photo crosslinker it should be used within 24 hours to ensure completely reproducible physical characteristics.

Our new and innovative method for manufacturing GelMA allows us to produce sterile batches. Each step is conducted in a controlled environment and all reagents are either chemically sterilized or autoclaved. Every single batch of our Okagel products is tested to ensure sterility.


Okagel along with many other Gelatin-based hydrogels are not known to pose any direct hazards or health risks. GelMA Biotechnologies Ltd. recommends standard laboratory safety precautions be taken into consideration when working with Okagel hydrogels. Direct physical contact with products should be avoided. When working with the solid form of Okagel it is recommended that precautions be taken to prevent the inhalation of dust particulates.

Okagel exhibits the capacity to promote the growth of a wide variety of cells at differing concentrations. Our tests show indications of cell viability from as little as 2.5% to concentrations close to 20%. When photocrosslinking Okagel we recommend concentrations of around 5% to generate stable cell scaffolding.

Okagel Solid

  • The stability of our solid form of Okagel is ideal for long-term storage when kept under recommended conditions.
  • Okagel solids are perfect for bulk storage. They take up far less valuable shelf space in cold chemical storage than Okagel liquid.
  • Okagel solids allow you to use the aqueous solvent of your choice when preparing your hydrogel.

Okagel Liquid

  • Liquid Okagel products come ready to use at the requested concentration.
  • Solid GelMA can take upwards of 2 days to fully dissolve! Use the prepared liquid Okagel to save valuable time and money.
  • By having pre-prepared liquid Okagel you can be certain that your batch of GelMA is sterile and consistent with previous batches.
  • All Okagel Liquids are prepared in a sterile phosphate buffer solution, you can be confident your hydrogel will retain a stable pH.
  • Liquid Okagel will be sent via cold shipping to ensure quality is maintained as you receive it.
  • Okagel liquid is ideal for time-sensitive research, and it retains a high degree of quality within 5 days of receipt.

Okagel has a bloom of 300, and a degree of methacrylation of 80%.


Unfortunately, we do not allow accounts to be created using personal email addresses. Only institutional email addresses, such as those from your university or company are allowed.

We manually track the number of referrals and purchases made by each account. It may take 3-4 weeks for your account to reflect these changes. Afterward, a GelMA team member will send you an email notifying you that you qualify for a $500 gift card from one of our selection of retailers (Starbucks, Amazon etc.). If you think you are eligible for a gift card and don’t hear from a GelMA team member after 3-4 weeks have passed, please send an email to rewards@gelmaco.com.

When you create a new gelmaco user account, we start preparing your free 2-gram sample of GelMA right away. Samples will be sent to the address used when registering your gelmaco account. Depending on your location, samples can take up to 4-6 weeks to reach your destination. If you would like to have your sample sent to a different address, or have not received your sample after 6 weeks, please email rewards@gelmaco.com. 

If you earned a free 1-gram sample of GelMA when your referral link was used, please email rewards@gelmaco.com to let us know you’d like it sent to you. Alternatively, after ten referrals a GelMA team member will notify you via email that you qualify for a $500 gift card from one of our selection of retailers (Starbucks, Amazon etc.).

There is no minimum point threshold for redemption. Feel free to redeem your points at any time to receive discounts on your GelMA purchases. Every 4 points can be redeemed for $1 off your purchase.

Every 4 points can be redeemed for $1 off your purchases. This means that 1,200 points are worth $300 in GelMA. Alternatively, if you collect 12,000 points, you can redeem these 12,000 points for a $500 gift card from one of our selection of retailers (Amazon, Starbucks etc.).

We are always adding new awards to give you more options when redeeming your points, so stay tuned!

We know we have an amazing product, and our GelMA Ambassadors partner with us to introduce Okagel to more researchers around the world.

There are many benefits to becoming a GelMA Ambassador. Our Ambassadors get access to exclusive discounts and earn extra points when friends they refer make purchases. Our Ambassadors also receive free GelMA Company merchandise and other awesome perks!

You earn points on all of your purchases. You’ll earn one gelmaco point for every dollar you spend.

Become a GelMA Ambassador and earn more points when the friends you refer make purchases.

We’re always here to help. Just send us a message at support@gelmaco.com and we’ll get back to you as soon as we can.

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