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Legal status · United States

Is OSK Partial Reprogramming legal in the United States?

Written by Reviewed Sep 2026

Not approvedLongevityStudies in people cited: 1

Direct answer

No. OSK Partial Reprogramming is not approved for any medical use in the United States. Its legal category is "Investigational, not approved". The only legal way to get it is to join a registered clinical trial (an official study in people). A "research use only" label on vials sold online does not make them legal to use in people. On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given).

People given it
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Legal category

Investigational, not approved

FDA approval and compounding status, from the OSK Partial Reprogramming profile.

Reviewed Sep 2026. This is a legal category, not legal advice.

A "research use only" label on a vial does not make it legal to use on people.

OSK Partial Reprogramming in the United States at a glance

Legal categoryInvestigational, not approved
FDA approval statusNot approved in any country for any use. No reprogramming therapy has ever been approved. One investigational product, Life Biosciences ER-100, is in an early safety study that is signing up patients (NCT07290244).
Studies in people1 of 6 sources on the profile
ReviewedSep 2026

The legal category and note come from the OSK Partial Reprogramming profile. We checked them against U.S. Food and Drug Administration (FDA) listings on the reviewed date.

What this means

  • 01

    OSK Partial Reprogramming is being tested in registered clinical trials (official studies in people). FDA has not approved it for sale in the United States.

  • 02

    The only legal ways for a person to get it are to join a trial, or to use an official early-access program where one exists. There is no pharmacy product to prescribe.

  • 03

    Vials sold online "for research use only" are not trial supplies. That label does not make them legal to use in people.

What OSK Partial Reprogramming is

Three of the four Yamanaka genes, switched on briefly to reset the ageing marks on DNA without wiping out what kind of cell it is. One early safety trial in people is signing up 18 people, with a shot into one eye. Every result showing a benefit is in mice.

Partial reprogramming is an idea about ageing cells. It says they keep a readable record of their younger state, written as chemical tags on their DNA.

How it works: This is shown in mice. Switching on OSK partly wipes and rewrites the chemical tags on a cell's DNA, called methylation.

Approval history: Not approved in any country for any use. No reprogramming therapy has ever been approved. One investigational product, Life Biosciences ER-100, is in an early safety study that is signing up patients (NCT07290244).

How FDA treats this kind of product

Approves prescription drugs, each for a named use. It also acts against unapproved products, including peptides sold online. Compounding pharmacies, which mix drugs to order, may make some compounds with a prescription. That only applies when the FDA puts the compound in a category of bulk ingredients it allows.

The legal category above is how The Longevity Archive reads U.S. Food and Drug Administration listings for OSK Partial Reprogramming on the reviewed date. It is not a legal opinion. Rules change. Bringing a compound into the country, prescribing it and owning it can each be treated differently. Check with the agency before you act on anything here.

Check FDA directly

OSK Partial Reprogramming in sport and the military

Whether OSK Partial Reprogramming is banned in sport is set by the World Anti-Doping Code and by military rules, not by its legal status in the United States. Before you compete or get tested, look up OSK Partial Reprogramming by name on the Prohibited List, or look up a named product in Global DRO. Under the World Anti-Doping Code, category S0 bans, at all times, any drug-like substance that meets two tests. No other section of the List covers it. And no government health regulator anywhere has a current approval for it as a treatment in people. Many substances that are approved somewhere are banned by name in another section. So approval does not mean a substance is allowed in sport.

The rules you compete or serve under decide this, not this page.

OSK Partial Reprogramming in other countries

Frequently asked questions

Is OSK Partial Reprogramming legal in the United States?

No. OSK Partial Reprogramming is not approved for any medical use in the United States. Its legal category is "Investigational, not approved". The only legal way to get it is to join a registered clinical trial (an official study in people). A "research use only" label on vials sold online does not make them legal to use in people. On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given).

Can I buy OSK Partial Reprogramming in the United States?

There is no approved product to buy. In the United States, OSK Partial Reprogramming has the legal category "Investigational, not approved". So no licensed pharmacy product exists. Sellers who list it "for research use only" are not selling it for use in people, and that label does not change its legal status. Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything.

Is OSK Partial Reprogramming FDA approved?

No. FDA status: Not approved in any country for any use. No reprogramming therapy has ever been approved. One investigational product, Life Biosciences ER-100, is in an early safety study that is signing up patients (NCT07290244).. Current US legal category: "Investigational, not approved". On the evidence, no completed trial in people is cited on its profile (1 human record with no result or no dose given).

Related compounds in the United States

Full research profile

How OSK Partial Reprogramming works, the studies we cite, FDA status and the full legal summary are all on its compound profile.

OSK Partial Reprogramming profile

This page is general information about the legal status of OSK Partial Reprogramming in the United States, current as of Sep 2026. It is not legal advice. Legal status changes. For your own situation, check with U.S. Food and Drug Administration or ask a lawyer. Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use. Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything.