Vivi Insulin Pen Cap

I have been getting non-stop advertisements in Instagram for these special caps for insulin pens. The story goes that if your insulin pen heats up beyond a certain temperature, then the insulin left in the pen becomes damaged and ineffective. It felt like each time I opened the Instagram app, I would see an ad for Vivi Caps.

The price for each cap is $110, though you get a discount online if you buy more than one. I ended up buying one for my Humalog pen from Amazon for $80. A quick Google search did not turn up any negative reviews of the product, but it did seem like there were lots of “paid” positive reviews.

So why did I buy this fancy cap? I do not know if I am even experiencing the issue that the cap is trying to solve. There is indicator on the pen letting the patient know if the remaining insulin is problematic. I do take the pen with me if I am eating away from home, but there is no indication if the product is working or not. There is just a nagging thought that my blood sugar levels are not decreasing enough after insulin shots.

So, is this product real, or an elaborate scam? There is no indicator other than a battery check LED. Since the goal of the cap is to maintain the pen at a cool temperature, there should be some indicators to let the user know the operating conditions. Again, I would have no idea if the product is doing anything.