ATX-304
Also known as O304, O-304
Quick facts
- Researched for
- Metabolic rate, glucose handling, visceral and liver fat, body composition and energy use
- Route or form
- Oral
- Evidence so far
- Small human studies on blood sugar and fat, mixed reports, no proof of long-term safety.
- Not established
- Big weight loss, keeping muscle, stamina, long life and safe home use are not established.
- Where to see it
- Listed at our partner, US Precision Peptides.Go to Next step
By the Learn Peptides editorial team · Updated · How We Research
What people are researching it for
People are researching ATX-304 for metabolic rate, glucose handling, visceral and liver fat, body composition, and energy use.
The page text is our summary, checked against its sources. If the visual says more than the text, go by the text.
Metabolism. Energy. Potential.
ATX-304 (also called O304) is an experimental oral small molecule that activates cellular energy pathways, with potential benefits for metabolism, fat loss, and metabolic health.
- What is ATX-304?
- ATX-304 (O304) is an investigational, oral small molecule designed to activate AMPK and support mitochondrial metabolism.
- Oral small molecule (not a peptide)
- Activates AMPK pathways
- Supports mitochondrial metabolism
- Investigational - not FDA approved
- How does it work?
- ATX-304 activates AMPK (AMP-activated protein kinase), a key regulator of cellular energy. It also promotes mitochondrial uncoupling, helping the body use more fuel and improve metabolic health.
- Activates AMPK energy pathways
- Supports mitochondrial function
- May increase energy expenditure
- Improves glucose utilization and metabolic flexibility
- The goal is to help your body use fuel more effectively, not primarily suppress appetite.
- Potential benefits
- Research and early user reports suggest several potential benefits, though individual results vary.
- May support fat loss and body composition
- May increase energy and endurance
- May improve metabolic markers (e.g. glucose, insulin sensitivity)
- Potential support during and after GLP-1 use (early research)
- Supports overall metabolic health and healthy aging (research stage)
- Benefits are promising, but human research is still limited.
- How it's used (in research & forums)
- Dosing and protocols vary widely. There is no standardized dose for general use.
- Common research doses: 400 mg once daily (8-16 weeks in recent study)
- Common research doses: 1,000 mg/day (earlier clinical study)
- Common forum doses: 50-400 mg per day
- Common forum doses: Often split into 1-3 doses
- Common forum doses: Taken orally, usually with food
- Timeframe: Effects may build over time
- Timeframe: Full exposure may take 1-2 weeks (long half-life)
- Timeframe: Most reports run 4-8+ weeks
- Important: No official protocol
- Important: Start low and assess response
- Important: Product quality and formulation can vary widely
- What users report
- Forum reports are mixed, but common themes include:
- Fat loss and improved body composition (some users)
- Increased energy and motivation
- Easier cardio in some cases
- Little to no appetite suppression
- Better sleep (some users)
- Possible side effects: Feeling hot or increased body temperature
- Possible side effects: Sleep disturbances
- Possible side effects: Elevated heart rate or palpitations
- Possible side effects: Reduced exercise performance (some users)
- Possible side effects: Dry mouth
- Possible side effects: Tingling or skin sensitivity
- Side effects are not universal, but should be taken seriously.
- Key takeaway
- ATX-304 is a promising experimental compound with real human research and genuine user interest. It may support metabolism, fat loss, and metabolic health, but results vary and it is not a proven solution.
- ATX-304 is not a peptide, not FDA approved, and should be used only with careful research and realistic expectations.
- Promising research. Informed decisions. Brighter possibilities.
- The bottom line
- ATX-304 offers exciting potential for metabolism, energy, and long-term health, but it's not a magic solution. Use only high-quality products, follow a research-focused approach, and set realistic expectations.
Reasons people look into ATX-304. An interest is not a promise that it works.
- Weight loss & metabolic
- Body composition & performance
People report mixed results, from more energy to heat, sleep and heart-rate problems.
Community reports
Reports are mixed: some people describe steadier energy, easier cardio, weight loss, or a leaner appearance, while others report little benefit and some describe heat, sleep, heart-rate, exercise-tolerance, dry-mouth, or skin-sensation problems.
Community reports
Community reports are mixed. Some people describe steadier energy, easier cardio, weight loss, or a leaner appearance, while others report little meaningful benefit and several describe heat, sleep, heart-rate, exercise-tolerance, dry-mouth, or skin-sensation problems.
Early human studies show it changes how the body uses fuel, such as blood sugar.
Early human studies show metabolic activity, including signals in glucose handling, resting metabolic rate, and MRI-assessed fat measures.
An investigational oral small molecule being studied for AMPK-linked energy metabolism, glucose handling, and energy expenditure.
What this is based on
- Human researchStudied in people for this or a related question.
- Community reportsWhat people describe noticing. Not proof of cause.
- Learn Peptides explanationOur own plain-English summary of the sources. It is not a source itself.
Big weight loss, keeping muscle, stamina, long life and safe home use are not established.
Human studies are small and early. Substantial weight loss, reliable endurance gains, human muscle preservation, longevity, and a safe self-use protocol are not established.
Safety notes
ATX-304 is a drug still in testing, taken by mouth. It is not a peptide. Early studies in people show it changes how the body uses fuel. Large weight loss, reliable exercise gains, keeping muscle, longer life and safe use at home are not established in people.
- ATX-304 remains investigational and is not an -approved treatment.
- Forum reports include palpitations, unusually high exercise heart rate, reduced exercise tolerance, sleep disruption, heat, dry mouth, and unusual skin sensations. These reports do not establish incidence or causation.
- Community use often involves , making both benefits and adverse effects difficult to attribute to ATX-304.
- An unusually high heart rate or palpitations should not be treated as proof that a metabolic compound is working.
- Our research review found no confirmed dose, schedule or combination for everyday use. It found no long-term safety record either.
A drug still in testing, taken by mouth, not a peptide, studied for cell energy.
ATX-304, also called O304 or O-304, is an experimental oral small molecule, not a peptide. Researchers are studying how it affects AMPK, an energy sensor inside cells, and how cells make and use energy. Early human studies show biological activity, but substantial weight loss, muscle preservation in people, and a safe self-use protocol have not been established.
Not the same as
- ATX-304 is also called O304 or O-304.
- It is an oral small molecule, not a peptide.
- Its research focus is AMPK, an energy sensor inside cells, and how cells make and use energy.
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