World's First • Patented

Thermal Insulin Pen
Carrying Case

Keeps your insulin at the exact right temperature, even in the heat or cold. No maintenance, batteries, charging, or ice packs.

See it in action

World's First • Patented

Thermal Insulin Pen
Carrying Case

Keeps your insulin at the exact right temperature, even in the heat or cold. No maintenance, batteries, charging, or ice packs.
See it in action
Pocket sized
Lasts for years
Works Everywhere
Scientifically Proven
Pocket Sized
Lasts For Years

As seen on

You Could Be in Danger of Using Damaged Insulin Without Even Knowing It...

Dr. Susan Sloane, Explains:
Pharmacist, Diabetes Care and Education Specialist

Insulin must be protected from temperature extremes. Most people don’t realize that temperature extremes can lead to damaged insulin, rendering it less effective, or even ineffective in some cases. This can put you on a roller coaster of high blood sugars leading to extreme lows if you start increasing the insulin dose.

Your Insulin is at the risk of being damaged everyday

in your car, at work, at the beach, when traveling or even in your bag.

Always Stay in the

Safe Zone

Insulin in use that is exposed to temperatures above 86° F or below freezing can be damaged and unsafe. This can result in fluctuating glucose levels and can be life threatening.

temparature scale indicating safety

Protect your insulin and stay safe

VIVI Cap protects you and your insulin from damage due to unsafe temperatures, everyday for years.

For every new insulin pen you use, you can replace the pen cap with your VIVI Cap - for immediate protection.

How It Works


Replace original insulin cap with VIVI Cap


Push to click

You’re good to go!

Scientifically Validated

VIVI Cap is Backed by Healthcare Professionals

Scientifically Validated

Backed by Healthcare Professionals

Dr. Diana Isaacs ADCES Diabetes Educator
of the Year 2020
Most people don't realize how fragile insulin is, and how to store it for it to work the most effectively. The VIVI Cap is an incredibly simple solution to ensure that insulin is safe to use and that none of it goes to waste
Dr. William V. Tamborlane Chief of Pediatric Endocrinology -
Yale School of Medicine
As a clinician and clinical investigator concerned about better treatments for diabetes, the VIVI Cap is of particular benefit for my patients who require insulin shots, as the vast majority of patients use insulin pens for their daily injections.
Dr. Susan B. Sloane Pharmacist, Diabetes Care and
Education Specialist
I was so excited to find the VIVI Cap products. Temperature extremes affect Insulin and once that happens, the blood sugar controls get out of hand. I really think it's a life-saving product. Plus, it's all FDA registered and very easy to use.

Get Back Your Freedom and Spontaneity

Don't let your diabetes keep you away from your favorite sport.
Take your insulin with you on a plane, boat or trek.
Your insulin is with you at work; wherever and whenever you need it.

See What Our Customers Have To Say...

It Works to Keep Insulin Cool and Safe!
This cap works just as advertised. We use it when traveling to keep my son’s insulin cool down here in Texas and other areas of the southwest that can get quite ‘toasty’. It’s nice to store it in our fridge between uses and simply grab it on the go. It’s a great alternative to carrying a big insulated bottle with ice sticks... Thank you!
Laura Craven, T1D
Works every time
As unlikely as it may seem, this product works as described! I have used it for a while now, and it has never failed to keep the insulin pen below higher temperatures that degrade the insulin.
Lior, T1D
This really works
This technology actually works to keep the insulin at a safe temperature in my purse, without bulky and melting ice packs. It's convenient and compact. You can put the Vivi cap over a pen needle for even more convenience. They are expensive, yes, but how much will an overheated insulin pen cost you? Highly recommended.
Kathy, T2D

The best thing for me!
Whether working out at home, or at the gym, the VIVI CAP is a must have to keep my insulin at a controlled temperature. Don’t leave the house without it!! Highly recommended to anyone who needs to keep their insulin in the car or even in a hot gym locker for hours at a time!
Mark Sloane, T1D
Great invention
When there are extreme heat waves here in my country, the VIVI Cap just saves me! It helps me keep my insulin at a normal temperature. Highly recommended!
Aviva Domein, T1D
The VIVI Cap is so easy and simple!
I've lived with type 1 diabetes for over 20 years, and I worry the most about my insulin when I'm going with my kids to the beach or the pool, and I have to pack an old school ice pack in my bag and make sure that it is always in the shade. It's just tedious.. With VIVI Cap I simply throw it in my bag and go.. It's so easy!
Ginger Vieira, T1D

100% Money Back Guarantee
Try it, Risk Free.

Patented Technology Developed for Space

Keeps insulin safe in all temperatures.

  • No charging needed ever
  • No need for water / refrigeration
  • Always ready to go
  • Lasts for years

Together We Can Change Lives

After 20+ years alongside people with diabetes, Iwe realized how they struggle to control their glucose levels, Iwe developed this space grade technology to protect people and their insulin from temperature damage.

Ron Nagar, Founder & CEO
Ron Nagar Founder & CEO
Ilan Cohen Chairman

Get Your VIVI Cap Today!

  • No more big, uncomfortable cooling bags
  • No more fluctuating glucose levels due to bad insulin
  • No more worry about unsafe insulin

FDA Registered  3 Years Warranty

  • 3 Years Warranty

100% Money Back Guarantee

Try it, Risk Free.

Frequently Asked Questions


VIVI Cap does not require any maintenance, there is no need to charge it or to place it in the fridge. After initially fitting it to your insulin pen with one of the supplied adaptors, simply use it as your pen cap. It fits most of the prefilled insulin pens. There is a VIVI Cap available for refillable insulin pens as well.

VIVI Cap doesn’t have to be placed in the fridge. The VIVI Cap patented CLICK-N-GO technology incorporates innovative space-grade insulation with a unique heat exchanger.
It automatically absorbs the excess heat, releasing it to the environment when ambient temperature is normal. It can be placed in the fridge to accelerate the heat release, but without the insulin pen.

No, VIVI Cap does not have a rechargeable battery and does not depend on electrical power to function.
The battery in the device runs the temperature sensor and the light indicator and with proper use, can last for many years.

VIVI Cap has successfully passed performance tests and the results were published in Expert Opinion on Drug Delivery 2017 Jun;14(6):709-714.
VIVI Cap is FDA and CE Registered.

Unlike other devices, VIVI Cap does not need air flow to work properly.
It is small and lightweight and can be carried together with your other stuff, in your purse or even in your pocket.

VIVI Cap protects the insulin from overheating or freezing from the moment you take it out of the refrigerator until the end of use, everyday for years. With every new pen you start to use, replace the pen cap with VIVI Cap.
Just Click-n-Go™ no maintenance is required.

Insulin in use that is exposed to temperatures above 86°F or below freezing can be damaged and spoiled. Damaged insulin is not visible to the naked eye.

This can result in fluctuating glucose levels and can be life threatening causing
-Blood glucose fluctuations
-Increased insulin dosages
-Risk of hypoglycemia

You can clean the exterior and interior of VIVI Cap by wiping it with a medical swab. When cleaning the interior, be careful not to tear off the internal temperature sensor (looks like a tiny black dot inside).

Only 2 oz (60g)! Easily fits in your pocket, purse or bag.

VIVI Cap Fits The Following Pens:

VIVI Cap has been registered by the FDA. Using a device that hasn’t been listed, cleared, or approved by the FDA as a medical device is extremely dangerous. The device may be ineffective at best or unsafe and cause harm to the user or client, at worst.

Yes! VIVI Cap is HSA and FSA eligible.