For the metabolism you’re trying to coax forward.
Multi-strain, single-target. Issue-specific strains whose metabolites interact with your gut’s own satiety-signaling pathways, on the Universal core. Gentle nudges, not a forced switch.
- Multi-strain, one job
- 26 Billion CFU per capsule
- One capsule a day, shelf-stable
- Made in an FDA-registered US facility
Checkout opens securely on Shopify. Ships in 2–5 business days. Want more than one? Mix any two for $90 or four for $179.

Why a targeted formula
Your gut makes its own fullness signals.
The Lean One is built to support that signaling, and nothing else. No stimulants, no caffeine.
Built for satiety signaling
Issue-specific strains picked for metabolic support, on the same Universal core that sits in every GoodOne.
Every ingredient on the label
Genus and species printed on the Supplement Facts panel, with the published research on each strain cited per formula. Look any of them up yourself.
Shelf-stable, no fridge
Shelf-stable through the printed expiry date. Gluten-free, non-GMO, no dairy, no soy. Made in an FDA-registered, cGMP-compliant US facility.
What’s inside
Nudges, not a switch.
The issue-specific strains produce metabolites that interact with GLP-1 and other satiety-signaling pathways, the ones your gut runs on its own after a meal. Flaxseed feeds them.
- Multi-strain, single-target. One job per bottle.
- 26 Billion CFU per capsule, total.
- Every ingredient named on the label.
- No subscription to try it.
| Issue-specific · the work this bottle is named for | |
| Bifidobacterium animalis subsp. lactis | † |
| Streptococcus thermophilus | † |
| Universal core · in every core GoodOne | |
| Bifidobacterium breveThe Anchor | † |
| Lactobacillus plantarumThe Translator | † |
| Lactobacillus rhamnosusThe Regulator | † |
| Prebiotic | |
| Linum usitatissimum (Flaxseed) | 50 mg |
From checkout to day 30
What happens after you order
The research is the backbone. What you feel is the point.
Checkout on Shopify
The Lean One is already in the cart. Orders are typically processed within 2–5 business days and ship USPS or UPS Ground. No cold chain needed.
One capsule a day
Take it with a meal. One a day is the sweet spot. Stacking a second GoodOne? Two a day is the maximum.
Judge it at day 30
Judge it across the month: appetite, energy, how meals sit. Individual results vary.
30-day supply. No subscription required. Checkout opens securely on Shopify.
How it works
Fullness is a message. Your gut writes part of it.
Cells in your gut lining release hormones like GLP-1 after you eat. They help tell your brain you’ve had enough. Gut bacteria and the short-chain fatty acids they make are part of that conversation.
The Lean One pairs B. animalis subsp. lactis with Streptococcus thermophilus on the Universal core. Support for a system, not a switch.
The Lean One or The GLP One?
The Lean One supports your own metabolic signaling. The GLP One is built for people already taking a GLP-1 medication. Different jobs.
What we will and won’t claim
We will say: B. animalis subsp. lactis has been studied for body-composition measures in published research, for example a 2016 randomized controlled trial, n = 225 (PMID 27810310). Those are studies of the strains, not trials of the finished GoodOnes formula. GoodOnes has not run its own randomized controlled trials of the finished formulas.
We will not say: that you will lose weight, or that it replaces a medication, diet or exercise. The Lean One is structure-function support for one body system. Individual results vary.
SLENDER · The Lean OneWho makes it
Built by the microbiome scientists at Flore.
GoodOnes is the targeted-formula line from Flore Inc., a microbiome company founded in 2018. The formulas come from what Flore’s microbiome dataset shows, packaged as one job per bottle.
Want a formula built from your own gut data? That’s Flore: a microbiome test, then a formula made from your results.
Is this your One?
The probiotic brand that tells you when not to buy.
A targeted formula only earns its keep if it’s aimed at your actual pattern. Read both columns before you order.
The Lean One is for you if
- You eat well and move, and you want your gut working with you.
- You want support, not a stimulant.
- You want every strain named on the label.
- You’re 18 or over and want to try one bottle first.
Skip it if
- You expect weight loss from a capsule. Food, sleep and movement do the heavy lifting.
- You take a GLP-1 medication. The GLP One is built for that.
- You have a metabolic condition under medical care and haven’t checked with your clinician.
- You want a treatment. This is a dietary supplement. It is not intended to diagnose, treat, cure, or prevent any disease.
On medication? Keep taking it.
GoodOnes is a supplement. It supports your routine, it doesn’t replace it. The Lean One is daily nutritional support built to sit alongside whatever your doctor has you on, never instead of it.
Show your doctor the label if you’d like their take.
Questions
Before you order
Will I lose weight?
We don’t claim that. The Lean One supports your gut’s own metabolic signaling. Food, movement and sleep still do the heavy lifting. Individual results vary.
Is there caffeine or a stimulant in it?
No. It’s bacteria and a flaxseed prebiotic. Nothing that speeds your heart up.
Can I take it with a GLP-1 medication?
Talk to your prescriber first. If you’re on one, The GLP One is the One built for you.
Do I need a subscription?
No. This page sells one bottle for $49, one time. Want two or four? Mix any Ones for $90 a pair or $179 for four on realgoodones.com. Monthly? Subscribe & Save takes 10% off there, and you can cancel before any renewal by emailing support@flore.com.
What is the shipping and return policy?
Orders are typically processed within 2–5 business days and ship USPS or UPS Ground (5–7 business days), with expedited options priced at checkout. All sales are final except for orders that arrive damaged, defective, or incorrect, which Flore replaces or refunds if you email support@flore.com within 14 days of delivery. Full details on the shipping and returns pages.
Who should not take it?
The adult GoodOnes formulas are for ages 18 and over. They are not appropriate for active GI diagnoses that require medical management. If you are pregnant, nursing, have a weakened immune system, or take prescription medication, talk to your doctor before adding any probiotic.
Not your One?
There’s a One for that.
Every GoodOne does one job. Find yours, or take the 60-second quiz.
One bottle. Thirty days. A nudge, not a shove.
No test, no stool sample, no subscription. One targeted formula for metabolic support, every strain on the label. If it isn’t your One, the Flore team will say so.
Try The Lean One · $49 →30-day supply. Checkout opens securely on Shopify. Ships in 2–5 business days.
One capsule a day
No stimulants
No subscription
Made in the USA