Reviewed by the PeptideMind Team · Updated July 15, 2026

Tesamorelin Dosage Guide, Benefits & Side Effects

Approved Tesamorelin significantly reduces visceral adipose tissue and liver fat while supporting cognition and lean mass. See trial results.

Chemical Makeup

36

Amino Acids

Tesamorelin

Tyr

Y

Position 1

Pro

P

Position 2

Ser

S

Position 3

Lys

K

Position 4

Pro

P

Position 5

Asp

D

Position 6

Asn

N

Position 7

Pro

P

Position 8

Gly

G

Position 9

Glu

E

Position 10

Asp

D

Position 11

Ala

A

Position 12

Pro

P

Position 13

Ala

A

Position 14

Glu

E

Position 15

Asp

D

Position 16

Leu

L

Position 17

Ala

A

Position 18

Arg

R

Position 19

Tyr

Y

Position 20

Tyr

Y

Position 21

Ser

S

Position 22

Ala

A

Position 23

Leu

L

Position 24

Arg

R

Position 25

His

H

Position 26

Tyr

Y

Position 27

Ile

I

Position 28

Asn

N

Position 29

Leu

L

Position 30

Ile

I

Position 31

Thr

T

Position 32

Arg

R

Position 33

Glu

E

Position 34

Arg

R

Position 35

Tyr

Y

Position 36

Amino acid sequence
TyrosinePosition 1
ProlinePosition 2
SerinePosition 3
LysinePosition 4
ProlinePosition 5
Aspartic acidPosition 6
AsparaginePosition 7
ProlinePosition 8
GlycinePosition 9
Glutamic acidPosition 10
Aspartic acidPosition 11
AlaninePosition 12
ProlinePosition 13
AlaninePosition 14
Glutamic acidPosition 15
Aspartic acidPosition 16
LeucinePosition 17
AlaninePosition 18
ArgininePosition 19
TyrosinePosition 20
TyrosinePosition 21
SerinePosition 22
AlaninePosition 23
LeucinePosition 24
ArgininePosition 25
HistidinePosition 26
TyrosinePosition 27
IsoleucinePosition 28
AsparaginePosition 29
LeucinePosition 30
IsoleucinePosition 31
ThreoninePosition 32
ArgininePosition 33
Glutamic acidPosition 34
ArgininePosition 35
TyrosinePosition 36

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Tesamorelin Dosage Guide for Fat Loss / Muscle

Tesamorelin helps reduce visceral (belly) fat and can improve overall metabolism.

Vial size

10 mg

Bacteriostatic water

3 mL

Dosing

500 mcg–2 mg

Frequency

5 days on / 2 days off

Cycle

8–12 weeks

Benefit

Fat Loss / Muscle

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What is Tesamorelin?

Tesamorelin (Egrifta) is a lab-made version of a natural hormone (GHRH) that tells your pituitary gland to release growth hormone. It's FDA-approved specifically to reduce excess abdominal fat in people with HIV-related fat redistribution, and it's also widely used off-label for general belly fat reduction and body composition goals. It works by restoring more youthful, natural patterns of growth hormone release rather than overriding the body's own hormone system.

Weight

Research targets include appetite regulation, fat metabolism, and body composition.

Growth

Research targets include growth hormone signaling, IGF-1 pathways, and tissue development.

Weight

tesa

Growth

Is Tesamorelin FDA approved?

Tesamorelin is FDA approved.

FDA Approved

Tesamorelin has been reviewed and approved by the FDA for safety and efficacy in its approved indications.

Regulated Manufacturing

Manufactured under FDA-regulated quality standards, ensuring consistent purity and dosing.

Prescription Use

Legally available by prescription for its approved medical indications.

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How Does Tesamorelin Work?

It attaches to the same pituitary receptor as the natural hormone GHRH, prompting the release of growth hormone in its normal pulsing pattern. The resulting rise in growth hormone and the related growth factor IGF-1 helps break down fat, particularly the deeper visceral fat around organs, while preserving muscle.

Binds the GHRH receptor

Attaches to the same pituitary receptor as the natural hormone GHRH.

Triggers GH & IGF-1

Prompts the release of growth hormone and the related growth factor IGF-1.

Targets visceral fat

Helps break down deep visceral fat around organs while preserving muscle.

Tesamorelin Targeted areas

How to reconstitute Tesamorelin

View guide

The materials you'll need and step-by-step instructions for safely mixing Tesamorelin with bacteriostatic water.

Materials needed

Your Tesamorelin vial (lyophilized)

Alcohol swabs

Bacteriostatic sterile water

3 mL syringes (Luer Lock tip)

25G or 27G needles (Luer Lock). Other gauges may also be acceptable.

Sharps container (optional)

1

Remove the caps

Remove the caps from both your Tesamorelin vial and your bacteriostatic water vial.
2

Sanitize the rubber stoppers

Wipe down the rubber stoppers on both vials with alcohol swabs and let them dry for about 3 minutes.
3

Attach the needle

Take your 3 mL syringe and needle. Twist the needle's plastic hub into the Luer Lock tip on the syringe to secure it.
4

Draw the bac water

Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.

How much bac water? Tesamorelin typically comes in a 10 mg vial. We recommend 3 mL of bacteriostatic water, though anywhere between 1 mL and 3 mL is acceptable. For larger vials you can use up to 5 mL — more bac water makes microdosing easier, but insulin needles usually max out at 1 mL per injection. That means a lot of bac water might force you into multiple injections to hit your target dose. Unless you're microdosing, 2 mL per vial is a solid rule of thumb.
5

Insert the needle into the Tesamorelin vial

With the bac water in your syringe, insert the needle into the Tesamorelin vial at a slight angle to avoid pressure buildup.

Use a thin needle: Stick to 25G or higher to avoid damaging the rubber stopper. Higher gauge means a thinner needle.
6

Release the water gently

Let the water run gently down the side of the vial. Don't inject it forcefully.

Heads up: Sometimes the plunger pushes itself in as soon as the needle enters the vial. Hold the plunger back so you have full control over how fast the bac water enters.
7

Swirl to dissolve

Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.

Be patient: This usually takes 2 to 5 minutes of consistent swirling, mixing in a circular motion, and gently flipping the vial up and down. The water needs to run through the powder many times to fully dissolve it. Don't shake or get aggressive with it.
8

Check for full dissolution

The solution should be clear with no visible particles. If it's cloudy or clumpy, wait a minute and repeat the swirling step.
9

Cap, dispose, and store

Once you're done, cap the needle and dispose of it (ideally in a sharps container). Store the reconstituted Tesamorelin vial in the fridge whenever it's not in use. It will stay good for approximately 30 days.

How to Store Tesamorelin

Keep the dry powder in the fridge, away from light. Once mixed with bacteriostatic water, refrigerate and use within about a month; the FDA-approved version (EGRIFTA WR) can be kept at room temperature and should be discarded after a week.

Lyophilized Storage

Refrigerate at 2–8°C, protected from light.

Reconstituted Storage

With bacteriostatic water, refrigerate at 2–8°C, use within 28 days.

FDA-Approved Formulation

EGRIFTA WR may be stored at room temperature (20–25°C) and discarded within 7 days.

A smartphone displaying a "Storage Guide" for peptides, indicating a safe storage temperature range of 2–8°C, with warnings to keep away from light, heat, and freezing. The background is light blue, and additional tips on protecting the peptides are visible below the temperature range.

What Are the Benefits of Tesamorelin?

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

weight loss

This is an FDA-approved use, and clinical trials showed it reduced deep visceral fat by 15-20%.

In clinical studies, people kept the weight off as long as they stayed on treatment for over a year.

It works in a distinctive way, targeting the harmful deep belly fat around organs while leaving the fat just under the skin largely untouched.

metabolic

Triglycerides, a type of fat in the blood, dropped by 12.3%.

Cholesterol levels improved by 7.2%.

Fat stored in the liver dropped by 37% after a year of use.

body composition

It helps keep lean muscle intact even while the body is losing fat.

Levels of IGF-1, a hormone tied to growth and tissue repair, rose by 26%.

What Are the Side Effects of Tesamorelin?

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

Who Should Avoid It

Active malignancy

Pituitary disorders

Pregnancy

Stop Right Away If You Notice

Development of diabetes or severe glucose intolerance (HbA1c ≥6.5%)

Signs of malignancy

Severe hypersensitivity reactions

Excessive IGF-1 elevation (>2 SD above normal) with acromegaly symptoms

Milder Signs to Watch For

Discolored or cloudy solution (yellow/brown indicates degradation)Visible particles or precipitate
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How Long Should a Tesamorelin Cycle Last?

This breaks down how long a typical Tesamorelin 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
IGF-1 levels begin to rise, possible mild water retention or joint discomfort
Week 4-6
Early metabolic changes; improved energy/sleep
Week 8-12
Visible visceral fat reduction begins, waist circumference may decrease
Week 12-26
Peak effects achieved with significant body composition improvements

Cheat Sheets Featuring Tesamorelin

See how Tesamorelin fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.

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Growth Hormone Peptide Cheat Sheet
Growth Hormone Peptide Cheat Sheet

13 peptides

Master Peptide Cheat Sheet
Master Peptide Cheat Sheet

78 peptides

Weight Loss Peptide Cheat Sheet
Weight Loss Peptide Cheat Sheet

19 peptides

Browse user-created protocols

Real protocols from the community that include Tesamorelin

View all
Performance17 days

Longevity Stack

John

2

Weight

tesa

Healing

wol

Body Recomp83 days

Muscle and Weight Loss Protocol

Bryn

3

Weight

tesa

Weight

GLP-3

Weight

ipa

Tesamorelin Research References

It is a fda approved compound

4Research references

Tesamorelin

Tesamorelin is a fda approved compound

LIPO-010 FDA Pivotal Trial

Significant visceral adipose tissue reduction (-24 ± 41 cm² vs +2 ± 35 cm² placebo, p < 0.001) in HIV patients over 26 weeks.

2010

CTR-1011 Extended Safety Study

69% achieved ≥8% VAT reduction vs 33% placebo at 26-52 weeks.

2011

NAFLD Treatment Trial

37% liver fat reduction over 12 months with fibrosis progression prevention.

2019

Cognitive Enhancement Study

Improved executive function and verbal memory in healthy elderly and mild cognitive impairment cohorts at 1mg daily.

2012

Frequently Asked Questions About Tesamorelin

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