Angiotensin (1-7)
The heart-friendly peptide that balances your blood pressure and protects your cardiovascular system
Written by Michael Carroll — Owner, Director of Research · Reviewed by the Peptide Initiative Research Team · Editorial standards
Suggested dose
100 mcg/kg
Compound profile
Scientific & efficacy data
Healing & Recovery
Peptide profile
Moderate human trials
Angiotensin (1-7)
100 mcg/kg · Once daily
Molecular formula
C41H62N12O11
- Mol. weight
- 899.02 g/mol
- CAS number
- 25016-41-7
- PubChem
- 123805
- Developed · 1995
- Research Team
Academic Research Institutions
Amino acid sequence
Sequence not publicly available or proprietaryHeart Health & Protection
Protects heart tissue from damage and inflammation
Blood Pressure Balance
Helps balance blood pressure naturally
Anti-Inflammatory Support
Reduces inflammation throughout the cardiovascular system
Dosing
How much do I take?
100 mcg/kg · once daily after each chemotherapy session · subcutaneous
100 mcg/kg
Once daily after each chemotherapy session
Covers all 2 documented dose levels · 2 administration routes · timing · dose-adjustment guidance.
Suitability
Is this right for me?
Best for cardiovascular health and heart protection & blood pressure management and hypertension
Best for
Cardiovascular health and heart protection
Angiotensin (1-7) is particularly well-suited for individuals focused on cardiovascular health and heart protection. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Blood pressure management and hypertension
Angiotensin (1-7) is particularly well-suited for individuals focused on blood pressure management and hypertension. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Recovery from heart-related conditions
Angiotensin (1-7) is particularly well-suited for individuals focused on recovery from heart-related conditions. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Anti-inflammatory support
Angiotensin (1-7) is particularly well-suited for individuals focused on anti-inflammatory support. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.
Consider alternatives if
Do not use if
Use with caution if
Not sure?
Compare Angiotensin (1-7) with similar peptides to find the best fit for your goals.
Administration
How do I use it?
As directed by healthcare provider
Route
Subcutaneous injection (into the fatty tissue just under the skin)—allows for consistent absorption and can be self-administered at home after proper training
Best sites
Covers reconstitution · step-by-step technique · storage · a sample daily schedule.
Safety
Is it safe?
4 common side effects · 1 serious
Angiotensin (1-7) is not FDA-approved and has no completed human clinical trials, with all safety data limited to animal studies and in vitro mechanistic work.
Animal studies suggest potential benefits in hypertension and cardiac remodeling but also reveal risks of hypotension, particularly with concurrent ACE inhibitor or ARB therapy. The peptide's effects on systemic inflammation and immune function in animal models are not validated in humans.
No pharmacokinetic data exists defining safe doses, optimal delivery routes, or organ accumulation patterns in humans.
Evidence is limited to rat models of hypertension, in vitro vascular studies, and mechanistic research in isolated tissue preparations. No human safety studies, Phase 1 dose-escalation trials, or pharmacokinetic studies have been completed.
Published literature focuses on proof-of-concept animal efficacy rather than comprehensive safety profiles. The only human data consists of theoretical extrapolations from animal physiology.
Common side effects · experienced by some users
Hypotension (Low Blood Pressure)
This effect has a common likelihood of occurring. Within 15-30 minutes of injection
Management: Start with low doses. Lie down during injection. Monitor BP regularly. Drink adequate fluids and salt unless restricted. Report severe dizziness.
Dizziness or Lightheadedness
This effect has a common likelihood of occurring. Immediate to 1-2 hours
Management: Sit or lie down immediately after injection. Rise slowly from lying or sitting position. Stay hydrated. Usually resolves within a few hours.
Injection Site Reactions
This effect has a common likelihood of occurring. Immediately at injection site
Management: Rotate injection sites. Apply ice for 5-10 minutes if desired. Keep site clean. Most resolve within a few hours.
Headache
This effect has a moderate likelihood of occurring. 15 minutes to 2 hours
Management: Stay hydrated. Rest in quiet, dark room. May take over-the-counter pain relievers if approved. Usually mild and temporary.
Stop and seek help if
- Severe or worsening side effects that don't improve with dose adjustment or supportive care
- Signs of an allergic reaction—rash, hives, swelling, or difficulty breathing
- Your healthcare provider recommends discontinuation based on your clinical response
- Development of any new medical condition that may be contraindicated with Angiotensin (1-7)
- Pregnancy or planning to become pregnant (unless specifically approved for use during pregnancy)
- Abnormal lab results or clinical markers that suggest adverse effects
Angiotensin (1-7) should only be started, adjusted, or discontinued under medical supervision. This information is for educational purposes only and does not replace professional medical advice. Never stop a prescribed treatment without consulting your healthcare provider first, as abrupt discontinuation may have consequences.
With other peptides
- Safe:Angiotensin Converting Enzyme 2 (ACE2) — Works synergistically in the RAS system to produce Angiotensin (1-7)
- Safe:Losartan — Blocks negative Angiotensin II receptors while allowing protective pathways
- Safe:Perindopril — ACE inhibitor that shifts RAS balance toward protective peptides
With medications
- Caution:NSAIDs (High-Dose) — May reduce effectiveness and increase kidney injury risk
- Caution:Potassium Supplements — Risk of dangerous potassium elevation (hyperkalemia)
- Caution:Certain Diuretics — May compound electrolyte imbalances and blood pressure effects
With supplements
- Safe:Multivitamins — Generally safe to take alongside Angiotensin (1-7). Space doses apart if taking oral formulations to ensure optimal absorption.
- Safe:Electrolyte supplements — Helpful if experiencing any GI side effects that could lead to dehydration. Safe to combine.
Effectiveness
How do I know it's working?
Moderate human trials · first signs week 1
Evidence level
Moderate human trials
(Phase 1-2)
Regulatory status
Research compound
Onset of effects
Moderate
(1-2 weeks)
How it works
Angiotensin 1-7 is a naturally occurring peptide that counterbalances angiotensin II's harmful effects.
While angiotensin II narrows blood vessels and promotes inflammation, angiotensin 1-7 widens them and reduces inflammation, potentially protecting heart and kidney function.
The deeper mechanism
Angiotensin 1-7 is a heptapeptide generated by ACE2 or other peptidases from angiotensin II. It acts as an agonist at the Mas receptor, promoting vasodilation, reducing inflammation, and antagonizing angiotensin II signaling.
In the renin-angiotensin system, Ang 1-7 provides cardioprotective and renoprotective counter-regulation.
What to expect
Week 1
What you might notice
- Your body begins responding immediately
- Blood vessels start to relax and inflammation decreases
- You might notice slight improvement in energy or reduced bloating
- Blood pressure begins adjusting—monitor daily
What's normal
- Initial response to Angiotensin (1-7) is beginning at the cellular level
- Different individuals experience Angiotensin (1-7)'s onset at different rates
- Transient systemic effects from initial Angiotensin (1-7) exposure are common
What's next
- Maintain consistent Angiotensin (1-7) administration as prescribed
- Document subjective effects and physical markers daily
- Schedule a check-in with your provider about initial observations
Weeks 2-4
What you might notice
- Initial protective effects become more noticeable
- Cardiovascular function improves as the Mas receptor pathway activates more consistently
- Some people notice improved sleep quality or reduced puffiness
- Kidney function begins improving if kidney support is a goal
What's normal
- Angiotensin (1-7) is now achieving steady-state pharmacokinetics
- Measurable changes aligned with Angiotensin (1-7)'s mechanism may appear
- Initial adjustment effects typically resolve by this point
What's next
- Maintain Angiotensin (1-7) dosing exactly as established
- Track progress toward intended outcomes in detail
- Review lab work or biomarker changes with your healthcare team
Weeks 4-8
What you might notice
- Significant cardiovascular improvements appear
- Blood pressure stabilizes at healthier levels
- Inflammation markers drop noticeably
- Energy and exercise tolerance improve
What's normal
- Angiotensin (1-7) is now achieving steady-state pharmacokinetics
- Measurable changes aligned with Angiotensin (1-7)'s mechanism may appear
- Initial adjustment effects typically resolve by this point
What's next
- Maintain Angiotensin (1-7) dosing exactly as established
- Track progress toward intended outcomes in detail
- Review lab work or biomarker changes with your healthcare team
Months 2-3
What you might notice
- Sustained benefits become established
- Long-term cardiovascular protection increases
- Many users report feeling more energetic and healthier overall
- Kidney protection becomes measurable through improved blood work
What's normal
- Full therapeutic effects of Angiotensin (1-7) are well-characterized at this point
- Maintenance of Angiotensin (1-7)'s therapeutic effects is typical
- Tolerance patterns with Angiotensin (1-7) are generally stable over months
What's next
- Comprehensive assessment of Angiotensin (1-7) efficacy should be conducted
- Discuss long-term continuation, cycling, or protocol modifications
- Continue regular monitoring of relevant biomarkers or symptoms
Signs it's working
Treatment Response
- Improvement in the primary symptoms or condition being treated
- Positive changes in relevant lab values or clinical markers
- Consistent, stable response to Angiotensin (1-7) over time
- Reduction in symptom frequency or severity
General Well-being
- Improved energy levels and daily functioning
- Better quality of life related to the treated condition
- Manageable or absent side effects indicating good tolerance
- Positive feedback from healthcare provider during check-ups
Not seeing results? Common reasons
- Not at therapeutic dose yet—initial doses are for building tolerance, not maximum effect
- Insufficient time at target dose—most compounds need several weeks to show full benefits
- Inconsistent dosing schedule—regular, consistent use is crucial for optimal results
- Individual variation in response—genetics, metabolism, and other factors affect outcomes
- Underlying conditions or medications interfering with absorption or effectiveness
- Improper storage leading to degraded product—always verify proper storage conditions
Key research
Questions
Frequently asked
How is Angiotensin (1-7) different from Angiotensin II?
Great question! While Angiotensin II tightens blood vessels, increases inflammation, and raises blood pressure, Angiotensin (1-7) does the opposite. It opens blood vessels, fights inflammation, protects your heart, and lowers blood pressure. They're like opposing players on a team—both natural, but with opposite effects. This is why Ang-(1-7) is called the 'protective' peptide.
Can I take Angiotensin (1-7) with my blood pressure medication?
This is important—ask your doctor first. Some blood pressure medications (like ACE inhibitors) work well with Ang-(1-7) because they complement each other. Others might cause your blood pressure to drop too much. Your doctor needs to monitor your blood pressure carefully if combining these. Never make changes without professional guidance.
Why do I feel dizzy after taking Ang-(1-7)?
Dizziness usually means your blood vessels are relaxing and blood pressure is dropping—which is what we want, but your body needs time to adjust. This is why we start with low doses. Lie down after injection, stay hydrated, and rise slowly from sitting or lying down. Most people adapt after the first few doses.
How do I know if Angiotensin (1-7) is working?
You'll notice several things: blood pressure readings improve (usually within weeks), you feel less bloated and tired, and exercise feels easier. Blood tests show improved kidney function and inflammation markers. Your doctor can run specific cardiovascular tests. Some benefits are subtle—better sleep, less brain fog, improved mood from better blood flow.
Is Angiotensin (1-7) safe for long-term use?
Research suggests it's safe for long-term use since your body produces it naturally, but long-term human studies are still ongoing. It's not FDA-approved yet, so it's considered a research compound. Most safety concerns come from using too much too fast or not monitoring blood work. Work with a knowledgeable healthcare provider and get regular blood tests.
Can Angiotensin (1-7) help with heart failure?
Research shows real promise. Ang-(1-7) protects heart tissue, reduces inflammation, and improves how efficiently your heart pumps. Several studies demonstrate it helps with heart failure recovery. However, this is still largely in the research phase. If you have heart failure, this is something to discuss with your cardiologist, not something to try on your own.
What should I eat while taking Angiotensin (1-7)?
Stay away from high-potassium foods because Ang-(1-7) can raise potassium levels. Avoid coconut water, avocados, spinach, and supplements with potassium. Eat plenty of other vegetables, lean proteins, and whole grains. Stay well-hydrated and don't drastically cut salt without asking your doctor—your body needs proper electrolyte balance.
Further reading
History & related research
History · since 1988
The blood pressure lowering peptide that changes how we treat heart disease
A seven amino acid peptide that works as nature's balance. While its cousin Angiotensin II raises blood pressure, Ang(1-7) does the opposite.
Read the full history of Angiotensin (1-7)Ready for the protocol?
Every dosing tier, administration route, timing note, and dose-adjustment rule for Angiotensin (1-7), on one page.