Legal status · United States
Is Osteocalcin legal in the United States?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
No. Osteocalcin is not an approved medicine in the United States; its classification is "Not a medicine; endogenous signalling molecule". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile.
Osteocalcin in the United States at a glance
| Classification | Not a medicine; endogenous signalling molecule |
|---|---|
| Note | Measured as a bone formation marker in clinical laboratories. No approved drug is an osteocalcin agonist, and no osteocalcin preparation has been administered to a human in a registered trial. |
| FDA approval status | Not a drug. Osteocalcin is an endogenous protein measured as a bone turnover marker in clinical laboratories. No osteocalcin product is approved anywhere and none has been given to a human in a trial. |
| Human studies cited | 2 of 5 citations on the profile |
| Reviewed | Sep 2026 |
Classification and note come from the Osteocalcin profile, checked against U.S. Food and Drug Administration (FDA) listings at the reviewed date.
What this means
- 01
No product containing Osteocalcin is approved by FDA for any use in the United States, so nothing on the market is authorized for people.
- 02
"Research use only" is a vendor label, not a legal category that permits human use. It does not exempt a product from medicines law.
- 03
Importing, supplying or promoting it for human use can fall under medicines legislation in the United States. This page is general information, not legal advice.
What Osteocalcin is
The bone hormone that controlled muscle, glucose and testosterone in mice, until two independent laboratories made new osteocalcin knockout strains in 2020 and found none of those phenotypes. In humans the causal arrow, as far as genetics can resolve it, appears to run the other way.
Osteocalcin is the most abundant non-collagen protein in bone, made by osteoblasts and gamma-carboxylated in a vitamin K dependent step. From the mid-2000s it became something much more interesting: a bone-derived endocrine hormone.
Mechanism: Osteocalcin is a small gamma-carboxylated peptide secreted by osteoblasts. Its established function is structural: it aligns apatite crystallites parallel to collagen fibrils, and without it bone strength falls even though bone quantity is normal.
Regulatory history: Not a drug. Osteocalcin is an endogenous protein measured as a bone turnover marker in clinical laboratories. No osteocalcin product is approved anywhere and none has been given to a human in a trial.
How FDA treats this kind of product
Approves prescription drugs by indication and polices unapproved products, including peptides sold online. Compounding pharmacies may prepare some compounds under a prescription when the FDA places them on a permitted bulk-substances category.
The classification above is the The Longevity Archive reading of U.S. Food and Drug Administration listings for Osteocalcin at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
Osteocalcin in other countries
United Kingdom
Not approvedNot a medicine; endogenous signalling molecule
Is Osteocalcin legal in the United Kingdom?Australia
Not approvedNot a medicine; endogenous signalling molecule
Is Osteocalcin legal in Australia?Canada
Not approvedNot a medicine; endogenous signalling molecule
Is Osteocalcin legal in Canada?Frequently asked questions
Is Osteocalcin legal in the United States?
No. Osteocalcin is not an approved medicine in the United States; its classification is "Not a medicine; endogenous signalling molecule". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. On the evidence, 2 human studies are cited on its profile. Note: Measured as a bone formation marker in clinical laboratories. No approved drug is an osteocalcin agonist, and no osteocalcin preparation has been administered to a human in a registered trial.
Can I buy Osteocalcin in the United States?
No approved product exists to buy. In the United States Osteocalcin is classified as "Not a medicine; endogenous signalling molecule", so there is no licensed pharmacy product. Vendors selling it "for research use only" are not selling it for human use, and that label does not change its legal status. This site does not list or recommend vendors. Note: Measured as a bone formation marker in clinical laboratories. No approved drug is an osteocalcin agonist, and no osteocalcin preparation has been administered to a human in a registered trial.
Is Osteocalcin FDA approved?
No. FDA status: Not a drug. Osteocalcin is an endogenous protein measured as a bone turnover marker in clinical laboratories. No osteocalcin product is approved anywhere and none has been given to a human in a trial.. Current US classification: "Not a medicine; endogenous signalling molecule". On the evidence, 2 human studies are cited on its profile.
Related compounds in the United States
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for Osteocalcin live on its compound profile.
Osteocalcin profileThis page is general information about the regulatory status of Osteocalcin in the United States, current as of Sep 2026. It is not legal advice, and classifications change; check U.S. Food and Drug Administration directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.