Feel alive inside.

Support your complete biome with our live, synbiotic coconut water kefir.

Shop Daily Synbiotic

The all-in-one solution for your complete biome.

Gut Health

Immune Health

Metabolic Health

Oral Health

Brain Health

Skin Health

Yogurt

Kombucha

Supplements

Live Bacterial Count > 50B

Postbiotic Metabolites

Prebiotic & Bioactive EPS

Immediate Action in Mouth for Oral Health

Lactic Acid & Acetate

Low Sugar & Zero Alcohol from Fermentation

Scientifically Proven Bacterial Strains

What people are saying.

Testimonials

"Most things meant to heal your gut don’t taste very good, so I was pleasantly surprised. After about two weeks of drinking it regularly, I’ve noticed my digestion feels more consistent. It’s an easy addition to my daily routine.”
Konstantine M., PA
"I was looking for something gentler than kombucha, especially in the morning, and Caya has been exactly that. The flavor is mild, easy to drink, and never feels too acidic. It works for me and my morning routine."
Athena S., MI
"I’m usually skeptical of wellness stuff, but this one earned a permanent spot in my fridge. There's no powders, no mixing, no cleanup. Just grab it and move on. It’s the lowest-effort upgrade I’ve made with an actual payoff. My digestion feels better, my energy is steadier, and I don’t have to think about it. Which matters when you’re working full-time and raising a kid."
Becca E., IL
“At 69, we just want things to be simple. Caya is light, refreshing, and easy to stick with.”
Debra S., MI
"I've been taking Caya every morning for almost four weeks. Over the past week, I've noticed a clear improvement in my gut health and skin—I'm convinced my hair even looks fuller. My baseline for diet and supplements are pretty controlled, so I’m confident these changes are from Caya. My partner has started taking it, too. I'm a satisfied customer and plan to keep Caya as part of my daily routine."
Mike O., NJ
"I'm sort of hooked. I've been struggling with severe acid reflux, and Caya does a great job at keeping it at bay."
Corey H., VA
"I drank the entire bottle. I feel alive!"
Johnny C., IL
"I love Caya, not anything specific really, I just feel like after drinking it every day for a few weeks now, I just feel better."
Oliver Z., MA
"I’ve been dealing with digestive issues for some time now, with some acute issues the past month. After taking your drink I felt better in less than a week. I've never experienced that. I'm so excited to try more!"
Emily S., NC
Kai Sacher, Founder

A legacy of 30 years in probiotic innovation.

I’m proud to contribute to the science of restoring the complete human biome, starting where it matters most.

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