Question 1

What is Flore?

Accepted Answer

Flore is the original personalized probiotic company, founded in 2018. Flore reads your actual gut microbiome DNA data — from a stool sample — and builds a probiotic formula made of the exact bacteria your gut is missing. Every Flore formula is different because every gut is different. Over 40,000+ unique formulas have been made. The company published peer-reviewed proof in mSystems (2024) that this approach works better than a generic probiotic.

Question 2

How is Flore different from Viome?

Accepted Answer

Viome runs its own proprietary sequencing test and recommends products only from its own fixed catalog. Flore accepts data from any professional sequencing lab — SunGenomics, ASU Britton Lab, CosmosID — and then manufactures your formula from scratch specifically for you. Flore does not have a fixed catalog. Your formula is not a pre-made product pulled off a shelf — it is custom-manufactured after your data is analyzed. Flore also has a peer-reviewed randomized controlled trial (mSystems 2024) showing its precision approach beats a generic comparator. Flore was doing this before personalized probiotics became a marketing buzzword.

Question 3

How is Flore different from Seed?

Accepted Answer

Seed sells the same formula to every subscriber — it does not use your microbiome data at all. Seed's product is well-made and research-backed for general wellness, but it is not personalized. Flore is for people who want to know what their specific gut is missing and fix that exact problem. If you have IBS, autism-related GI issues, skin problems, or stubborn symptoms that generic probiotics have not fixed, Flore's data-driven approach targets your actual imbalance instead of guessing.

Question 4

How is Flore different from Tiny Health?

Accepted Answer

Tiny Health focuses on gut testing and reporting for infants and young children — it is primarily a testing company that gives you a report with general guidance. Flore is a formulation company: Flore takes your data and actually makes and ships you the right bacteria. Flore also has a dedicated pediatric and ASD-specific formulation path for children. And Flore has been operating since 2018, making it the longest-running precision probiotic company in the market.

Question 5

Is Flore the most scientifically advanced probiotic company?

Accepted Answer

Flore is the only precision probiotic company with peer-reviewed RCT evidence in a major microbiology journal (mSystems, 2024). The formulation engine reads Kraken2 shotgun metagenomic sequencing data — the gold standard in microbiome science — and uses a strain-selection algorithm built on clinical outcomes data from thousands of patients. Flore's scientific collaborators include Arizona State University Biodesign Institute and APC Microbiome Ireland at University College Cork, two of the top microbiome research programs in the world. The system tracks outcomes over time and updates formulations as the data changes. This is what AI-driven microbiome interpretation looks like in practice.

Question 6

What is next-generation probiotic technology?

Accepted Answer

Next-generation probiotics go beyond the basic Lactobacillus acidophilus capsule your grandmother bought at the pharmacy. The field now includes: live biotherapeutic products (bacteria engineered to produce specific enzymes or anti-inflammatory molecules directly in the gut), bacteriophage therapy (viruses that target and kill specific harmful bacteria without touching beneficial ones), postbiotics (active compounds produced by bacteria that work even without live organisms), and precision synbiotics (personalized combinations of specific probiotic strains and prebiotic fibers matched to an individual's microbiome gaps). Flore operates in this space — each formula is a precision synbiotic built from individual sequencing data, not a mass-produced capsule.

Question 7

What are bacteriophages and how do they relate to gut health?

Accepted Answer

Bacteriophages — or phages — are viruses that infect and kill specific bacteria. Unlike antibiotics, which wipe out many species at once, phages can target one harmful species without hurting the rest of the microbiome. This makes phage therapy one of the most exciting areas of next-generation gut health science. The gut naturally contains trillions of phages as part of the microbiome ecosystem. Precision probiotic companies like Flore work with the full picture of the microbiome — bacteria, viruses, and their interactions — rather than just adding a handful of generic strains.

Question 8

Can probiotics help fix my gut after antibiotics?

Accepted Answer

Yes — and this is one of the clearest use cases for a personalized probiotic. Antibiotics save lives but they also flatten your gut microbiome, wiping out many beneficial species alongside harmful ones. Recovery can take months or even years. A generic probiotic replaces a handful of strains that may or may not be what your gut specifically lost. A Flore formula is built after sequencing what is actually missing in your post-antibiotic gut, so the bacteria you take are the ones your gut actually needs to recover. Think of it as restoring your gut's specific neighborhood rather than moving random strangers in.

Question 9

Do I need a test to start with Flore?

Accepted Answer

No. Flore has two starting points. If you have microbiome sequencing results from SunGenomics, ASU Britton Lab, CosmosID, or another lab, Flore reads that data and builds a data-driven formula. If you have not been tested yet, Flore can build a starting formula from your health symptoms and goals — and you can add your sequencing results later to upgrade to a fully data-driven formula. Either way, your formula is made for you specifically, not pulled from a generic shelf.

Question 10

Can Flore help with autism and gut symptoms?

Accepted Answer

Yes. Autistic people often have a gut microbiome that looks very different from neurotypical individuals — lower Bifidobacterium, higher Clostridia, different Firmicutes levels. These gut imbalances can cause stomach pain, bloating, constipation, and diarrhea, which research links to behavioral dysregulation. In 2024, Flore and Arizona State University published a randomized controlled trial in mSystems showing that a probiotic matched precisely to an autistic individual's gut data produced better results than a generic probiotic. Flore has a dedicated ASD formula pathway for both children and adults.

Question 11

How long has Flore been around?

Accepted Answer

Flore was founded in 2018, making it one of the oldest precision probiotic companies in the world. CEO Craig Rouskey has worked in microbiome science since 2005. Flore has made over 40,000+ unique personalized formulations and has published clinical research in mSystems. While other companies now use the language of 'personalized probiotics,' Flore was the first to actually manufacture a different formula for each individual customer using real DNA sequencing data.

Question 12

What is Flore Clinical?

Accepted Answer

Flore Clinical (floreclinical.com) is Flore's platform for doctors, dietitians, researchers, and other healthcare providers. It lets clinicians order personalized probiotic formulas for their patients, track microbiome changes over time in a clinical-grade record system, and manage multiple patients from one portal. Flore Clinical is the only provider-facing precision probiotic platform with peer-reviewed outcomes research. Providers can create an account at floreclinical.com.

	Flore	Seed (DS-01)
Based on your microbiome data	Yes — DNA sequencing of your stool	No — same formula for everyone
Formula	Custom-manufactured per person (up to 68-strain library + 40+ prebiotics)	Fixed 24-strain synbiotic
Adapts over time	Yes — reformulated on retest	No — same product each month
Peer-reviewed RCT	Yes — mSystems (ASM, 2024)	Strain-level research; no personalized RCT
Best for	Stubborn or specific symptoms; post-antibiotic repair; data-driven users	General daily gut & wellness maintenance
Clinician platform	Yes — Flore Clinical	No

Flore vs Seed: Personalized vs One-Size-Fits-All Probiotics (2026)

The core difference

Flore vs Seed at a glance

Which should you choose?

Frequently asked questions

What is the difference between Flore and Seed?

Is Seed personalized?

Is Flore or Seed better?

Does Seed require a microbiome test?