90-DAY MONEY-BACK GUARANTEEINDEPENDENTLY LAB-TESTED — EVERY BATCHFREE SHIPPING ON EVERY SUBSCRIPTIONMADE IN THE USA · cGMP-CERTIFIED

Quality youcan verify.

Every formula is built on clinically-studied ingredient forms, dosed with intention, and tested by an independent lab — so you know exactly what you're taking.

100% OF BATCHES LAB-TESTED · CLINICALLY-STUDIED FORMS · NO FILLERS
Close-up of a woman holding two CoreLabs capsules beside her eye
EVERY BATCH VERIFIED
IdentityCONFIRMED
PotencyVERIFIED VS. LABEL
Heavy metals · MicrobialsPASS
Status● VERIFIED
COA PUBLISHED FOR EVERY LOT
ALBION® CHELATED MINERALS · BERBEVIS® PHYTOSOME · PROBIOSEB CSC3® SPORES · QUATREFOLIC® FOLATE · K2QUEST® MK-7 · FERROCHEL® IRON · C3 COMPLEX® CURCUMIN · ALBION® CHELATED MINERALS · BERBEVIS® PHYTOSOME · PROBIOSEB CSC3® SPORES · QUATREFOLIC® FOLATE · K2QUEST® MK-7 · FERROCHEL® IRON · C3 COMPLEX® CURCUMIN · ALBION® CHELATED MINERALS · BERBEVIS® PHYTOSOME · PROBIOSEB CSC3® SPORES · QUATREFOLIC® FOLATE · K2QUEST® MK-7 · FERROCHEL® IRON · C3 COMPLEX® CURCUMIN · ALBION® CHELATED MINERALS · BERBEVIS® PHYTOSOME · PROBIOSEB CSC3® SPORES · QUATREFOLIC® FOLATE · K2QUEST® MK-7 · FERROCHEL® IRON · C3 COMPLEX® CURCUMIN · 

Where do you want to start?

The form is the whole argument.

Two bottles can list the same nutrient and behave completely differently in your body. Most of the market buys the cheapest form that legally fits on a label. We do not.

Magnesium
Commonly usedMagnesium oxide — poorly absorbed, mostly a laxative
What we useAlbion chelated glycinate — absorbed intact, gentle on the gut
Folate
Commonly usedFolic acid — synthetic, needs conversion many people cannot do well
What we useQuatrefolic 5-MTHF — the active form, no conversion required
Iron
Commonly usedFerrous sulfate — the reason iron has a reputation for nausea
What we useFerrochel bisglycinate — well tolerated, no stomach churn
Curcumin
Commonly usedPlain turmeric powder — barely enters the bloodstream
What we useC3 Complex with BioPerine — built for actual uptake
Build your protocol

No guesswork.
Three steps.

Find your formula
Subscribe to your protocol
Verify every batch
STEP 01

Find your formula

Two minutes of questions about your goals — sleep, energy, digestion, focus — and you get a short, honest protocol. Never a bundle of everything.

Built on your goals, not trends
Clinically-studied, fully-dosed formulas
Get started
STEP 02

Subscribe to your protocol

Supplements work with consistency, so we built the pricing around it. Your protocol arrives on your schedule — and you stay in control.

Save up to 20%
Free shipping on every order
Pause, skip, or cancel anytime
Shop supplements
STEP 03

Verify every batch

Your bottle carries a lot number. Match it to the certificate published on the product page — results from an independent lab, for that exact batch.

IdentityCONFIRMED
Potency% OF LABEL
Heavy metals · MicrobialsPASS
See how we test

Beautiful on the outside.
Serious on the inside.

Every capsule is filled in a cGMP-certified facility, using raw materials tested and qualified before use. What's on the label is what's in the capsule.

A single CoreLabs capsule held between fingers
Bestsellers

Start with a bestseller.

SHOP ALL →
CoreLabs Magnesium Glycinate bottle front, 120 capsules
WHY THIS ONE

Magnesium bound to two glycine molecules — a true chelate that travels the amino-acid absorption pathways. Each capsule carries 120 mg of elemental magnesium, and the dose flexes from one to four so you can reach the amount you want. Glycine is calming in

Magnesium Glycinate120 SERVINGS
The evening magnesium
Bone & JointSleep+2
$25.99● LAB VERIFIED
$23.39/mo on subscription
CoreLabs Complete Berberine bottle front, 90 capsules, two capsules per serving
BESTSELLERFEATURED
WHY THIS ONE

Both berberines in one serving, rather than choosing between them. 500 mg of standard Berberine HCl, the form nearly all the published research used, plus 550 mg of Berbevis®, a phospholipid complex built specifically for absorption. Two capsules a day with a meal. Both

Complete Berberine45 SERVINGS
Both forms, one serving
Gut HealthHeart & Circulation+1
$42.99● LAB VERIFIED
$38.69/mo on subscription
CoreLabs Iron Complex bottle front, 90 capsules
BESTSELLERFEATURED
WHY THIS ONE

Iron on its own only does half the job. This carries a full 27 mg of Ferrochel® chelate alongside the cofactors your body actually needs to use it — vitamin C to absorb the iron, and active B6, methylfolate and methyl-B12 to build red

Iron Complex90 SERVINGS
Iron with what iron needs
Blood & IronEnergy+1
$27.99● LAB VERIFIED
$25.19/mo on subscription
Gut + Immune Probiotic bottle, front label
WHY THIS ONE

Most American adults eat roughly half the fibre they need, and the bacteria in your gut are what that fibre was feeding. This puts the whole system back: three spore-forming strains that arrive alive, a full gram of GOS to feed them, PreforPro to

Gut + Immune Probiotic30 SERVINGS
Supports daily digestive comfort
Gut HealthImmune+2
$49.00● LAB VERIFIED
$44.10/mo on subscription
Questions

Frequently
asked.

All questions →
How do I verify my batch?
Find the lot number on your bottle, open the supplement's product page, and match it to the published certificate — identity, potency, heavy metals, and microbials for that exact batch.
Why subscribe instead of buying once?
Supplements work with consistent use, so subscription is our primary path: save 10% on one product, 15% on two, or 20% on three or more, with free shipping every time and pause, skip or cancel anytime.
What ingredient forms do you use?
Clinically-studied, patented forms — chelated minerals, active vitamers, standardized extracts. The form is chosen from the research, never from the price list.
Who tests your supplements?
An independent, third-party lab — not us. Every lot, four separate checks, results published on the product page.
Can I pause or cancel my subscription?
Anytime, from your account — no calls, no penalties, no questions.

We make supplements the way they should be made — clinically-studied forms, meaningful doses, and independent verification on every supplement. If a formula can't meet that standard, we don't make it.