Immunity One-Time Purchase

Immunity One-Time Purchase

Immunity Benefits:

You might recognize Immunity as our winter formulation, and you’re right! But lately, with the spread of harmful viruses, people have been asking us what they can do for an extra immunity boost. We thought it would be helpful to continue providing Immunity as a one-time purchase, so you can give your immune system the extra care it deserves.

Immunity can be taken together with our spring formulation Outside.

Jetson Immunity probiotics help your gut recover after vaccinations and antibiotics, lower your chances of catching a cold, ease inflammation, decrease sick days, and support upper respiratory health.

Free Shipping

Free shipping to 48 Contiguous United States. Shipping fees will apply to Alaska, Hawaii, Canada.

No worry guarantee

If you don’t love Jetson, you don’t pay for it. If you need a break, you can skip, pause or cancel anytime.


OutsideSpring: Mar 20 - Jun 19
FitSummer: Jun 20 - Sep 19
MoodFall: Sep 20 - Dec 19
ImmunityWinter: Dec 20 - Mar 19

Why We Made This

The gut is the body’s control center—it’s often called the second brain. An unhealthy gut can lead to poor digestion, weak immunity and inflammation. Jetson gives you the probiotic boost needed to increase immunity, reduce bloating and digest the most nutrients from your food.

The Blend

Jetson Immunity’s proprietary formulation is designed to keep your immune system strong. In fact, it’s been shown to reduce the frequency and duration of the common cold.

Stay Healthier All Winter Long

Jetson Immunity has 8 studied, validated and named probiotic strains that have shown to have positive impacts on the immune system and overall gut health.

Key Ingredients

Jetson Immunity also has three other key ingredients that have been shown to provide immune support: zinc, echinacea, and vitamin C.  When you take this all season long, your body is ready for anything winter throws at it.

Lactobacillus acidophilus

Degrades oxalates and supports a more aggressive immune state.

Lactobacillus reuteri

Human studies demonstrated a 65% reduction in sick days with this strain.

Lactobacillus paracasei

Has been shown to balance the immune system in animal studies and expedite recovery after antibiotics in human studies.

Bifidobacterium bifidum

Has been shown to enhance gut barriers and support the proliferation of healthier gut microbes after vaccinations.

Bifidobacterium lactis

This is a well-studied strain that has been proven to fight tumor growths, improve digestion, and enhance immune system functions.

Lactobacillus casei

Demonstrated to support a strengthened immune system.

Streptococcus thermophilus

Has shown to prevent and decrease upper respiratory infections.

Bacillus subtilis

A powerhouse strain that supports digestion and healthy microflora in the gut.


Our review of more than a dozen studies found the herbal remedy had a slight benefit in preventing colds.


Studies demonstrate a reduction the duration colds, perhaps by as much as 50%.


Taking vitamin C before the onset of cold symptoms may shorten the duration of symptoms.

FDA Disclaimer:
*The information, advice, statements, and testimonials have not been evaluated by the United States Food and Drug Administration (FDA). The information on this site and the products listed are not intended to diagnose, treat, cure or prevent disease, nor are they intended to replace proper medical help. It is always recommended to consult with a healthcare professional before starting any regimen of probiotics.

Jetson Immunity: the Best Probiotic for the Cold Season

16B CFU (Colony Forming Units) per pill

We don’t believe in the ‘more is better’ CFU count wars. Our probiotic bugs are specific, studied and effective. Sure, it costs us more—but you need it.

Solid Glass Bottles

Our bottles are reusable, recyclable, and protect the pills from moisture.  Nature knows best – and glass is best.

Proprietary Capsule Delivery

Our specially formulated capsule is designed to withstand stomach acid—keeping the bugs alive until they reach the intestinal tract where they’re needed.

No Lame Stuff

Our specially formulated capsule is designed to withstand stomach acid—keeping the bugs alive until they reach the intestinal tract where they’re needed.

See How Jetson Measures Up

Seasonal. Our formulations change to address year-round needs.
Fresh. From the lab to your door. We're anti-shelf life.
Proven. Strain-specific validated clinical studies.
Patented. The delivery system is patented to travel unharmed to your gut.
Convenient. We come to you. Open, take, repeat.
Clean. Vegan, no sugar, preservatives, or additives.
Agile. Small-batch production lets us keep products updated with science.
USA. Made in the USA.


"After two cancer bouts, my gut needs help. Jetson is the best there is. Trust me - I've tried them all!"

Jettie made Gordie even more regular than he was already. I truly noticed he was sick less often and for a shorter period of time."

“I’ve tried numerous other probiotics over the years and never noticed the benefits experienced almost immediately with Jetson.”

“Already seeing a boost to my mood and energy levels after less than a month!”

“One week of probiotics and I have to say feeling better! Making a real difference!”

“I travel a lot for work and Jetson helps tons with bloating on planes. I also didn't have any crazy side effects like I've had with I've had with that garbage they sell at [big chain vitamin stores]. Love you guys!”

"My gut has never felt this healthy and calm!"

It has been almost a month being on your probiotics, and I am feeling a difference now in my body. Things seems to be working and moving normally again; I feel my body is on its way to being normal once again. I just wanted to let you know. Thank you for all the good you are doing. :-) Keep up the good work!