Reviewed by the PeptideMind Team · Updated August 5, 2026

Humanin Peptide (HN) Dosage Guide, Benefits & Side Effects

Humanin peptide (HN) dosage guide covering research on mitochondrial-derived peptide protection for neurons and cardiac cells, longevity benefits, and side effects.

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Humanin Dosage Schedule

A once a week protocol studied to help protect cells and support the health of your mitochondria, your cells' energy engines.

Mitochondrial Protection Protocol

5 weeks, focused on metabolic health.

1 days per week

Taken Monday.

10 mg per injection

10 mg per injection, given just under the skin in the abdomen or thigh.

Humanin helps protect cells, particularly by supporting healthy mitochondria.

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What is Humanin?

Humanin is a small peptide made inside your mitochondria (the energy factories of your cells) and is strongly linked to longevity: people who live to 100 tend to have higher levels of it. It appears to protect cells from dying and helps shield nerve cells and metabolic function from stress and damage. Researchers and longevity-focused clinicians are interested in it for protecting the brain, supporting metabolism, and potentially slowing cellular aging.

Cognitive

Research targets include neural signaling, memory formation, and mental clarity pathways.

Longevity

Research targets include cellular aging, senescence, and long-term healthspan.

Longevity

hum

Longevity

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What Does Humanin Do?

It attaches to a receptor complex on cells that switches on several survival pathways, helping protect cells from dying off and from damage caused by unstable molecules. Inside the cell, it also travels into the mitochondria (the energy factories) to keep them working properly and prevent early cell aging.

Binds a survival receptor

Attaches to a receptor complex that switches on cell-survival pathways.

Protects from damage

Helps protect cells from dying off and from unstable molecules.

Supports mitochondria

Travels into mitochondria to keep them running and prevent early cell aging.

Frequently Asked Questions About Humanin

Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.

Humanin is a naturally occurring 24-amino-acid peptide encoded within the mitochondrial genome (in a short reading frame inside the MT-RNR2/16S rRNA gene), making it one of the first identified 'mitochondrial-derived peptides' (MDPs). In preclinical research, it acts primarily through the GP130/IL6ST cell-surface receptor complex, activating AKT, ERK1/2, and STAT3 signaling pathways. These pathways are linked to cell survival, reduced apoptosis (programmed cell death), and protection against oxidative and endoplasmic reticulum stress. Most of this evidence comes from cell culture and animal studies rather than human clinical trials.

Research on Humanin has focused on neuroprotection (including Alzheimer's disease models), cardiovascular protection, beta-cell/insulin-related signaling, and general cellular stress resistance and longevity pathways. It is often discussed alongside other mitochondrial-derived peptides such as MOTS-c. These are experimental research areas; Humanin has not been established as an effective or approved treatment for any human disease.

There is no established, clinically validated human dosage for Humanin. Online research communities and vendor guides describe a wide range of self-reported protocols, commonly citing subcutaneous doses in the range of roughly 0.5-2 mg per day or split doses totaling 5-10 mg per week over 2-3 injections, with some anecdotal reports using higher or lower amounts. These figures come from forum reports and non-peer-reviewed sources, not controlled human trials, and should not be treated as validated or safe dosing guidance.

Reported side effects in animal studies and anecdotal human research reports are generally described as mild and uncommon, including injection site irritation, transient fatigue, occasional headache, and mild lightheadedness (particularly when combined with other metabolic-acting compounds). Because no controlled human clinical trials have been completed, the full side effect profile, long-term safety, and interactions with medications or health conditions are not well characterized.

A frequently raised theoretical concern in discussions of Humanin is its anti-apoptotic mechanism (it can inhibit BAX-mediated cell death), which in principle could interfere with normal clearance of damaged or cancerous cells. For this reason, some sources suggest that individuals with a personal or family history of cancer, or those on medications affecting insulin/glucose regulation, should be especially cautious. This is a theoretical/mechanistic concern raised in secondary sources rather than a confirmed clinical finding, and it underscores why Humanin is not intended for self-directed human use outside of a research or medical context.

Humanin is frequently discussed alongside MOTS-c, another mitochondrial-derived peptide, since the two are considered the most-studied members of this peptide family and are thought to act through overlapping but distinct pathways. Combining peptides increases the number of unknown variables and potential interactions, and there is no clinical data validating the safety or effectiveness of such combinations in humans.

Like most research peptides, Humanin is generally supplied as a lyophilized (freeze-dried) powder that is reconstituted with sterile water (often bacteriostatic or sterile water for injection) before use. Vendor and community guidance commonly recommends keeping the lyophilized powder refrigerated or frozen for longer-term storage and refrigerating the reconstituted solution, using it within a limited timeframe, and protecting it from excessive heat, light, and repeated freeze-thaw cycles. Reconstitution and storage practices vary by supplier, so any specific product's documentation should be consulted.

Humanin is not approved by the FDA or other regulatory agencies for any human therapeutic use; there is no approved New Drug Application (NDA) or active Investigational New Drug (IND) filing establishing it as a medical treatment. It is sold by various suppliers labeled 'for research use only, not for human consumption.' Regulatory treatment of research peptides has been shifting (for example, changes to FDA compounding lists affecting some other peptides), so buyers should check current regulations in their jurisdiction rather than assume legality based on availability.

Humanin Reconstitution Guide

Humanin is supplied as a freeze-dried powder that must be mixed into a injectable solution before use. Available in 1mg, 5mg, 10mg sizes.

10 mg lyophilized vial

Humanin is supplied as a freeze-dried powder that must be mixed into a injectable solution before use. Available in 1mg, 5mg, 10mg sizes.

3 mL bacteriostatic water

Adding 3 mL of bac water to a 10 mg vial gives a workable concentration for syringe dosing. More water makes microdosing easier; less concentrates each draw.

Storage after mixing

Freeze the dry powder for long-term storage, or keep it in the fridge for shorter periods. Once mixed with liquid, refrigerate and use within 30–60 days, protected from light and repeated freezing and thawing. After reconstitution, keep the vial refrigerated and use within 30 days.

Reconstitution steps

Remove caps & sanitize stoppers

Attach needle to syringe

Draw 3 mL bacteriostatic water

Insert needle into Humanin vial

Release water gently down the side

Swirl to dissolve — don't shake

Check for full dissolution

Refrigerate Humanin — good for 30 days

Chemical Makeup

Amino Acids

Humanin

Met

Position 1

Ala

Position 2

Pro

Position 3

Arg

Position 4

Gly

Position 5

Phe

Position 6

Ser

Position 7

Cys

Position 8

Leu

Position 9

Leu

Position 10

Leu

Position 11

Leu

Position 12

Thr

Position 13

Ser

Position 14

Glu

Position 15

Ile

Position 16

Asp

Position 17

Leu

Position 18

Pro

Position 19

Val

Position 20

Lys

Position 21

Arg

Position 22

Arg

Position 23

Ala

Position 24

Amino acid sequence

MethioninePosition 1

AlaninePosition 2

ProlinePosition 3

ArgininePosition 4

GlycinePosition 5

PhenylalaninePosition 6

SerinePosition 7

CysteinePosition 8

LeucinePosition 9

LeucinePosition 10

LeucinePosition 11

LeucinePosition 12

ThreoninePosition 13

SerinePosition 14

Glutamic acidPosition 15

IsoleucinePosition 16

Aspartic acidPosition 17

LeucinePosition 18

ProlinePosition 19

ValinePosition 20

LysinePosition 21

ArgininePosition 22

ArgininePosition 23

AlaninePosition 24

What Are the Benefits of Humanin?

What research says it may help with, and how it works in the body.

neuroprotection

: Encourages cells to produce more of their energy-generating mitochondria, working through an internal cell-signaling pathway, in Parkinson's disease models.
: Offers wide-ranging protection to nerve cells against many different kinds of damaging insults.
: First discovered because it protects brain cells from damage caused by amyloid-beta, the sticky protein buildup linked to Alzheimer's disease.

longevity

: Producing extra amounts of it extends lifespan in roundworms, an effect that depends on a specific longevity-related genetic pathway.
: People who live to 100 and their children tend to have higher levels of it, suggesting a link to long life.
: A lab-modified version of it improved metabolic health measures in middle-aged mice.

cellular protection

: Protects many different kinds of cells from damage and death caused by stress.
: Blocks proteins that trigger programmed cell death, helping prevent cells from self-destructing.
: Supports the health of mitochondria, the cell's energy-producing structures, and encourages the cell to make more of them.

What Are the Side Effects of Humanin?

Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.

Who Should Avoid It

: Active cancer (theoretical concern with anti-apoptotic effects)
: Pregnancy or breastfeeding
: Hypersensitivity to peptide components

Stop Right Away If You Notice

: Signs of allergic reaction
: Unusual persistent symptoms

Milder Signs to Watch For

Discolored powderCloudy or particulate solutionBroken seal

Was it helpful?Yes

Is Humanin FDA approved?

Humanin is not an FDA-approved drug. It is intended for research purposes only and is not approved for human consumption, diagnostic, or therapeutic use.

Research Use Only

Humanin has not been evaluated by the FDA for safety or efficacy in humans.

No Clinical Oversight

Not manufactured under FDA-regulated quality or clinical standards.

Unregulated Sourcing

Purity, dosing, and sourcing are not verified through FDA testing or oversight.

A smartphone screen displaying FDA status for a drug, indicating "FDA approved drug: No" and "Classification: Research use only." A banner notes "Research Only" with the disclaimer "not for human use," emphasizing its intended use for laboratory and analytical purposes.

Humanin Cycle Length: How Long Should It Last?

This breaks down how long a typical Humanin cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.

That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.

Week 1-2: Subtle; peptide begins working at cellular level
Week 2-4: Improved energy and reduced fatigue may begin
Week 4-8: Enhanced cellular resilience and stress response
Week 8-12: Cumulative benefits in mitochondrial function and healthspan markers
Week 0-0: Potential longevity and neuroprotective benefits

Humanin Research References

It is a preclinical compound

4Research references

Humanin

Humanin is a preclinical compound

Neuroprotective Action of Humanin and Humanin Analogues

Comprehensive review of humanin's neuroprotective effects in Alzheimer's and Parkinson's disease models.

n.d.

Original Discovery of Humanin

Hashimoto et al. cloned humanin from Alzheimer's patient brain; demonstrated protection against amyloid-β toxicity.

n.d.

The mitochondrial derived peptide humanin is a regulator of lifespan and healthspan

Humanin overexpression extends lifespan in C. elegans; HNG treatment improves metabolic healthspan in middle-aged mice; levels higher in centenarian offspring.

n.d.

Mitochondria-derived peptides in aging and healthspan

Review of mitochondria-derived peptides including humanin and their roles in aging and metabolic health.

n.d.

Humanin Peptide (HN) Dosage Guide, Benefits & Side Effects

Humanin Dosage Schedule

What is Humanin?

Our top-rated vendor

What Does Humanin Do?

Frequently Asked Questions About Humanin

What is Humanin and how does it work?

What is Humanin studied for?

What dosages are commonly discussed in research and online communities?

What side effects have been reported?

Are there specific safety concerns to be aware of?

Is Humanin often stacked with other peptides?

How is Humanin typically stored and handled?

Is Humanin legal to buy, and what is its regulatory status?

Humanin Reconstitution Guide

Chemical Makeup

What Are the Benefits of Humanin?

neuroprotection

longevity

cellular protection

What Are the Side Effects of Humanin?

Who Should Avoid It

Stop Right Away If You Notice

Milder Signs to Watch For

Is Humanin FDA approved?

Humanin Cycle Length: How Long Should It Last?

Humanin Research References

Humanin Peptide (HN) Dosage Guide, Benefits & Side Effects

Humanin Dosage Schedule

What is Humanin?

Our top-rated vendor

What Does Humanin Do?

Humanin Targeted areas

Frequently Asked Questions About Humanin

What is Humanin and how does it work?

What is Humanin studied for?

What dosages are commonly discussed in research and online communities?

What side effects have been reported?

Are there specific safety concerns to be aware of?

Is Humanin often stacked with other peptides?

How is Humanin typically stored and handled?

Is Humanin legal to buy, and what is its regulatory status?

Humanin Reconstitution Guide

Chemical Makeup

What Are the Benefits of Humanin?

neuroprotection

longevity

cellular protection

What Are the Side Effects of Humanin?

Who Should Avoid It

Stop Right Away If You Notice

Milder Signs to Watch For

Is Humanin FDA approved?

Humanin Cycle Length: How Long Should It Last?

Humanin Research References

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