Your body's own antioxidant defence
Selenium is built into glutathione peroxidase, one of the enzymes your cells use to manage oxidative stress from the inside.
Antioxidant & Longevity · Immune
Selenium Glycinate – 90 servings
✓90-DAY MONEY-BACK GUARANTEE
$19.95$0.22 PER SERVING
Selenium chelated to glycine — the amino acid pathway your gut already uses, so it arrives where it is meant to. A full 200 mcg in one capsule, the amount used across the antioxidant and thyroid research, ninety to a bottle. Every batch tested by an independent lab, with the certificate published.*
Your body's own antioxidant defence
Thyroid hormone conversion
A narrow range, respected
Chelated, not a loose salt
Everyday immune readiness
Skin, hair and nails
Tested by Light Labs inSEP 2026
12 substances tested for quality
Subscribe to multiple products and save more — 1 product 10%, 2 products 15%, 3+ products 20% off each.
QUANTITY
1
MANUFACTURED IN USATHIRD-PARTY TESTEDcGMP FACILITYVEGAN CAPSULENON-GMOCOA PER LOTGLUTEN-FREE
Who it's for
Selenium is the one mineral in the range where more is genuinely not better. The useful range is narrow, which is why this is a fixed 200 mcg with the amount printed and a warning not to stack it. Choose it if antioxidant or thyroid support is your reason and you want the studied amount exactly once a day.
- Anyone whose reason is antioxidant support at the enzyme level rather than another antioxidant added on top
- People thinking about thyroid function — the thyroid holds more selenium per gram than any other tissue
- Anyone whose soil-grown diet may be short: selenium content in food varies enormously with where it was grown
- People who want one capsule a day at a fixed amount rather than a dose to judge
- Not for stacking: do not take alongside another selenium product or a multivitamin containing it without professional advice
- Not a mineral to push: the range between useful and too much is genuinely narrow, which is why the number is fixed
- Speak to a professional first if you are pregnant, nursing, on medication or managing a thyroid condition
How to take
Take 1 capsule daily with food, or as directed by a qualified healthcare professional
Ingredients
- Active ingredients: Albion selenium glycinate
Selenium Glycinate
How it supports you.
Thyroid hormone conversion
The thyroid holds more selenium per gram than any other tissue, and the enzymes that convert thyroid hormone depend on it.
A narrow range, respected
Selenium has a genuinely narrow useful window. We fix it at 200 mcg and print it, rather than letting you guess at a dose.
Chelated, not a loose salt
Bound to glycine, it travels the amino-acid absorption pathway rather than arriving as an inorganic salt — which matters most when the useful range is narrow.
Everyday immune readiness
Supports normal immune cell function — part of the quiet background work of staying well.
Skin, hair and nails
Fast-renewing tissues feel a shortfall first, which is why selenium status tends to show up there.
Reproductive health
Contributes to normal reproductive function in both men and women.
Where your food grew matters
Selenium content in crops varies enormously with soil. A supplement removes that lottery from the equation.
Three months in every bottle
Ninety capsules at one a day, with the certificate of analysis for your lot published on this page.
Not all selenium is the same.
Albion selenium glycinate
| Selenium Glycinate | Selenite / selenate | Selenium yeast | |
|---|---|---|---|
| Chelated to an amino acid | ● | — | Partial |
| A full 200 mcg per capsule | ● | Varies | Varies |
| Exact amount disclosed | ● | ● | Varies |
| One capsule a day | ● | Varies | Varies |
| No proprietary blend | ● | ● | Varies |
| Certificate published every batch | ● | — | — |
GENERAL FORM COMPARISON — INDIVIDUAL PRODUCTS VARY BY BRAND
Inside the formula
Albion selenium glycinate
Selenium is a trace mineral, which means the gap between too little and too much is narrower than for almost anything else you take. That makes the form matter. Selenium glycinate is selenium chelated to glycine, the smallest amino acid, so it travels the amino-acid absorption pathway rather than arriving as a loose salt. We dose it at 200 mcg — the amount used across the antioxidant and thyroid literature — in a single capsule, ninety to a bottle.
OUR QUALITY STANDARD
Tested like it’s going into our own body. Because it is.
Quality is personal. Our standard centers on heavy-metal and microbiological testing, clear specifications, and documented results.
CAREFUL TESTING. CLEAR DOCUMENTATION.
Frequently asked questions
How do I know what's on the label is in the bottle?
Trust should be verifiable. Every batch we produce is tested by an independent laboratory, and the certificate of analysis for your exact lot is published on this page — potency, heavy metals, microbials. Testing begins the moment a raw material arrives, continues through production, and no batch is released until every result clears. The label is a claim. The COA is the proof.
How do you choose your ingredients and doses?
We formulate from peer-reviewed clinical research and dose to match it. We select the highest-grade material available for each ingredient, in the form the body absorbs best, and where a patented or branded form is the one that has actually been studied, that is the one we use. Every active appears at its exact amount, with no proprietary blends and nothing added that doesn't need to be there.
Where are CoreLabs supplements made?
In our own cGMP-certified facility in California's Central Valley. Manufacturing in-house means quality is our responsibility at every step rather than a supplier's promise. Raw materials are purchased through established US suppliers who import and qualify them, and every material is tested against our own specification before it enters production — wherever it originated.
Why are CoreLabs supplements more expensive?
Because of what goes in. We buy the highest grade of each raw material, in the most absorbable form, and we work with the branded and patented ingredient houses whose material the clinical research was actually run on — names like Lonza, Albion, RIBUS, Sabinsa and Indena. Wherever possible those materials are made domestically. Our capsules are titanium-dioxide free. Then it is made in our own facility and third-party tested batch by batch. Every one of those choices costs more than the alternative, and the price reflects it. Anyone can claim quality — we publish ours.
Can I take too much selenium?
Yes — selenium has a genuinely narrow useful range, which is why we dose it at 200 mcg and disclose it exactly. Do not stack it with other selenium-containing products without talking to a healthcare professional.
Why glycinate rather than another form?
Chelating selenium to glycine means it travels the amino-acid absorption pathway rather than arriving as a loose inorganic salt. For a trace mineral where the useful range is narrow, that consistency matters.
Why 200 mcg?
It is the amount used across most of the antioxidant and thyroid research on selenium. One capsule covers it.
Should I take it with food?
Yes, one capsule daily with food.
How long does a bottle last?
Ninety capsules at one a day is three months.
Selenium has a narrow useful range. Do not exceed the recommended dose or combine with other selenium-containing supplements unless directed by a healthcare professional. Consult a healthcare professional before use if pregnant, nursing, taking medication, or managing a medical condition. Keep out of reach of children.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Nu-FILL™, Nu-FLOW®, and Nu-MAG® are trademarks of RIBUS, Inc. All trademarks are property of their respective owners.