Jetson Outside Spring Seasonal Probiotic


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It's A Program - Not A Pill

Jetson is the world’s ONLY seasonal probiotic. With a seasonal probiotics subscription, we automatically rotate our strains 4 times a year for you to give your body what it needs - when it needs it.  Jetson works with scientists and researchers to use probiotic strains that have proven benefits, to meet your body’s needs as they change throughout the year.

Outside Benefits

Outside is this season’s probiotic: formulated to prepare you for the environmental changes that come with blossoming and blooming - whether you’re inside or outside. This formulation manages your responses to seasonal intolerances and sensitivities - improving upper respiratory inflammation, nasal congestion and itchy throats. Breathe clearer and give the tissues a break, you can thank us later.

Subscriptions renew automatically at the end of each cycle.

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 chronic inflammation. Only Jetson's seasonal formulations give you the probiotic boost needed to increase immunity, help you enjoy the outside, and digest the most nutrients from your food. Read more on gut health here.

Set It And Forget It

Microbiome diversity is the key to gut health and Jetson’s year-round, customized program takes the guesswork out of being healthy. You don’t have time to research every strain every month to balance your health. With Jetson, you don’t have to.

The Blend

Outside’s proprietary formulation is designed with allergy season in mind. No probiotic can legally claim to fight allergies – but Jetson has two exciting strains that are clinically studied to reduce the effects of seasonal allergies.

Key Ingredients

Jetson Outside has 8 researched, validated, and named probiotic strains that have shown to have positive impacts on the immune system, respiratory system and gut health – which directly contributes to overall health.

Bacillus subtilis

Formulated to promote a healthy microflora in the gut and support overall health.

Bifidobacterium lactis

Boosts immune function in children and adults.

Bifidobacterium longum

Studied for its effects on immunomodulation and its ability to affect eczema associated with allergic response.

Lactobacillus gasseri

Examined in meta-studies that looked at the effect on allergic rhinitis symptoms when paired with Lactobacillus Rhamnosus GG.

Bifidobacterium bifidum

Has been shown to support the body’s natural immune function.

Lactobacillus rhamnosus

Reduces allergic airway inflammation in mice studies when paired with BL-05.

Bifidobacterium animalis lactis

Studied to inhibit pathogenic growth and reduce inflammation.

Lactobacillus acidophilus

Studied directly for use in allergy management (hay fever).

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 Outside

Jetson Outside Spring Probiotic

20B CFU (Colony Forming Units) of Clinically Validated Strains

We don’t play the ‘bigger is better’ CFU count wars. Our probiotic bugs are specific, studied and effective. Most other probiotics with more CFUs are generic, dead and pointless. Sure, it costs us more - but that’s our style. Read more here.

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

No allergens, vegan, non-GMO, no preservatives and no sugar. Our products are as boring as you’d want your probiotics to be.

Solid Glass Bottles

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

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.

User Stories

See what our subscribers like most about Jetson.

“I like the message of seasonality, because our bodies change every season.. if not more.”


“After Jettie, Reed is sick for shorter periods of time and in better spirits.”

Mom to Reed (17 month)

“Since taking Jetson my digestion feels better, and I haven’t gotten sick once.”


“Since starting Jetson I’ve avoided getting sick, and I think Jetson’s a big part of that.”


“Since taking Jetson, I feel lighter in the morning and have more energy all day.”


“We incorporate Jettie right into what we’re already doing, with their milk every morning.”

Erik & Kiley
Parents to Baer (4) and Finn (2)

“I feel a lot less bloated and have energy throughout the day.”


“Within the second and third weeks I noticed a difference in their colds and immunity.”

Connor & Kelsey
Parents to Lake (2) & Gordie (2)

Jordan, Jetson Customer
Jettie Review by Samantha
Jetson Review by Chris
Spencer, Jetson Customer
Poonam, Jetson Customer
Erik and Kiley, Jettie Customer
Alex, Jetson Customer
Jettie Reveiw by Connor and Kelsey