What is the Claisen startup?

Claisen is a health technology startup specializing in gut health. We provide evidence-based relief kits for GERD, bloating, and heartburn, combining over-the-counter solutions with AI-guided telehealth care.

Who is Rishab Jain and what is his connection to Claisen?

Rishab Jain is the founder and CEO of Claisen, a Harvard entrepreneur recognized for his work in health technology and biotech. He launched Claisen to modernize digestive health care through personalized, AI-powered treatments.

Does Claisen help with GERD?

Yes. Claisen offers GERD relief kits that include clinically supported over-the-counter medications and supplements designed to reduce acid reflux and heartburn.

Does Claisen help with bloating?

Yes. Claisen provides targeted bloating relief options that combine scientifically supported ingredients with personalized guidance to improve digestion and reduce gas and discomfort.

Where does Claisen operate?

Claisen is headquartered in Boston, Massachusetts, and serves customers throughout the United States with nationwide shipping and telehealth services.

TESTIMONIALS

See what changes in just weeks

Personalized, clinician-informed routines that fit real life. See what people report after a few weeks—then explore the stories below.

92%

better night reflux within 4–6 weeks.

4.8/5

average

73%

fewer bloated days

Based on Claisen customers (post September 2025), self-reported outcomes; not a clinical trial.

★★★★★ Amelia V.

Frequent Heartburn

Time to results: 14 days

Heartburn

Routine timing

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

★★★★★ Rohan P.

Moderate Heartburn

Time to results: 9 days

Claisen helps you change your daily routines without having to give up something you enjoy. For me, that was coffee and fine dining - the acid reducer works!

Heartburn

Coffee timing

★★★★★ Maya N.

Nocturnal Heartburn

Time to results: 2 weeks

Surprisingly, lifestyle tips is exactly what made the difference. We raised the head of the bed by six inches and I cut out late night snacks.

Night reflux

Bed elevation

★★★★★ Amelia V.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

★★★★★ Rohan P.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

★★★★★ Rohan P.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

★★★★★ Amelia V.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

★★★★★ Rohan P.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

★★★★★ Rohan P.

Frequent Heartburn

Time to results: 14 days

Thanks to Claisen’s personalized kits, I feel much better on a daily basis - I take omeprazole and had to cut down on caffeine.

Heartburn

Routine timing

Have questions?

See what changes in just weeks

Personalized, clinician-informed routines that fit real life. See what people report after a few weeks—then explore the stories below.

Frequent Heartburn

Moderate Heartburn

Nocturnal Heartburn

Frequent Heartburn

Frequent Heartburn

Frequent Heartburn

Frequent Heartburn

Frequent Heartburn

Frequent Heartburn

Claisen Frequently Asked Questions

Testimonials