Tesamorelin stimulates the body’s growth-hormone release and raises IGF-1. EGRIFTA products reduce excess abdominal fat in adults with HIV-associated lipodystrophy; clinics and community discussions also explore body composition and different weekly patterns.
Research focus: Visceral abdominal fat and growth-hormone signaling.
Randomized trials · product labels · community discussionSources checked October 12, 2026
Single-dose subcutaneous studies in healthy subjects. WR and SV have distinct formulations. The older 26-minute reference value is not used for these products.
Half-life describes concentration falling by half. It does not set a dosing interval, a storage period or a drug-test detection window.
WR: 11 min · SV: 8 minHuman · current product labels
Diluent / formulation
Diluent and formulation
WR uses its supplied bacteriostatic water; SV uses its supplied sterile water. These are different preparations, concentrations and usable periods.
Bacteriostatic water contains a preservative; plain sterile water does not. Preservative presence does not by itself establish compatibility or a mixed medicine’s usable period.
WR: supplied BAC water · SV: supplied sterile waterProduct labels
START WITH THE EVIDENCE
What the documentation tells us.
Evidence context
The label instructions below apply to the named prescription products and their indications. A matching peptide name on another vial does not establish an equivalent formulation.
Check that a source concerns the same molecule, formulation, route and population. A study of cells, animals or a different product cannot confirm the contents of a vial.
Human trials, current WR/SV labels and separately attributed clinic and community reports.
Tesamorelin binds GHRH receptors and stimulates growth hormone release. GH then increases insulin-like growth factor 1 (IGF-1). It acts upstream of GH rather than supplying GH itself.
Visceral adipose tissue (VAT) is fat around the internal organs, different from fat just beneath the skin. The pivotal studies measured abdominal VAT by CT; a VAT percentage is not a percentage of total body weight lost.
What to watch in the evidence: the label calls for monitoring IGF-1 and glucose. Fluid retention, joint pain and carpal tunnel symptoms are recognized concerns; short-term trial averages do not remove individual risk. Label safety and monitoring · sections 4–5 ↗
Each entry keeps one schedule’s amount, frequency and cycle together. Community references, individual reports, clinical trials and prescription products describe different kinds of use. A missing duration or break stays marked as not reported.
Amounts describe mass in mg or mcg. Syringe units describe volume and depend on concentration. A cycle break is different from days off within a week.
Choose an option to explore its amounts, timing and cycle.
Community identifies source origin. It does not certify independent funding, medical credentials or the strength of a claim. Source types distinguish published reports, professional explanations and public discussions.
Explore reports, explanations and discussions from medical practices, researchers, suppliers and community members. The badges identify the source’s origin and evidence type.
No cited comparison validates equivalence to the pivotal daily trials or prevention of receptor desensitization.
Source relationship: Commercial aesthetics and wellness provider.
Perfect B Clinic educational article
The clinic describes intermittent weekly use and a break between treatment periods. The quick card contrasts it with daily EGRIFTA labels and trials.
Clinic proposal · different from approved daily schedules
CommunityCommunity discussion
Daily dosing, five-on/two-off and formulation questions
Daily dosing, five-on/two-off and formulation questions: evidence & source context
This is a discussion, not a registered trial or a published clinical dataset. Product identity, doses, measurements and medical histories are not independently verified. It does not establish a starter regimen, equivalent results with days off, mandatory bedtime fasting or a universal reconstitution method.
Source relationship: Public pseudonymous account. Clinical credentials, funding and conflicts of interest are not verified; a forum badge does not establish independent research.
Reddit · r/USPeptides u/lifeforever44; public post and replies
This discussion compares 1 mg and 2 mg, daily and five-on/two-off schedules, bedtime fasting, tolerability and a proposed 5 mg/mL preparation. Replies describe differing experiences. These topics are checked against trial reports and product labels in this guide.
Forum discussion · self-reports and proposed protocols · credentials unverified
FORMULATION FIRST
Reconstitution, storage and devices.
Product-specific handling
A peptide name and vial mass cannot determine a compatible diluent, powder displacement, storage temperature or discard date. Follow the exact product’s instructions and your pharmacist’s directions.
The injection guide concerns clinician-prescribed subcutaneous medicines; it does not establish that a research-labeled material can be injected.
Start with the formulation: dry powder, prepared solution, pen, tablet and topical product can have different instructions.
Storage: before and after opening.
US product label
EGRIFTA WR
Before opening
20–25°C (68–77°F) in the original box, protected from light.
After mixing / first use
After mixing: 20–25°C (68–77°F). Discard unused solution 7 days after mixing.
Handling & discard
Do not refrigerate or freeze the mixed vial. The diluent bottle has its own 28-day-after-first-use rule.
A research vial’s mass and a Reddit recipe do not verify compatible diluent, stability or usable doses. Follow the exact product documentation. If a solution is cloudy, discolored or contains particles, the product labels say not to use it; adding other chemicals is not an approved troubleshooting step.
The thread’s proposed 5 mg/mL is a concentration example, not the concentration of either current EGRIFTA product. Here is what the product labels actually specify:
Product label
EGRIFTA WR · weekly preparation
Vial / supplied liquid
11.6 mg / Bacteriostatic Water for Injection, USP
Liquid added / labeled concentration
1.3 mL / 8 mg/mL
After preparation
Seven consecutive daily doses; discard at seven days
Swirl gently; do not shake. Use only clear, colorless solution without particles. Keep the prepared vial at 20–25°C (68–77°F); do not refrigerate or freeze. The diluent bottle’s 28-day discard rule is separate from the medicine’s seven-day rule.
Use immediately; discard unused solution and diluent
Roll gently in the hands for 30 seconds; do not shake. Use only clear, colorless solution without particles. Do not refrigerate or freeze the prepared solution. SV does not follow WR’s seven-day storage workflow.
If a documented final solution is 5 mg/mL, a hypothetical 2 mg target corresponds to 0.4 mL = 40 U-100 scale units. The same concentration can be described by different mass / final-volume pairs:
2 mg / 0.4 mLAssumed final volume
5 mg / 1 mLAssumed final volume
10 mg / 2 mLAssumed final volume
These ratios do not specify how much liquid to add, which liquid is compatible or how long a vial can be used. For a product with a labeled concentration, use Advanced → Use a documented concentration (mg/mL) in the calculator. WR’s label specifies 8 mg/mL; dividing 11.6 by the 1.3 mL added would give the wrong labeled concentration.
What to record: Track food intake, appetite, activity and tolerability together. Appetite control should still leave room for adequate meals; review persistent eating difficulties with the treating clinician.
GO TO THE ORIGINAL
Documentation behind Tesamorelin.
About source checks
Check dates are editorial references, not a medical review certificate. Labels and evidence can change; consult the linked current document.
The calendar compares frequency, not effectiveness. Neither a weekly total nor a short plasma half-life can predict fat loss, IGF-1 response or tolerability. These are research questions, not a selected regimen.
The original phase 3 programs used 2 mg subcutaneously every day with the historical formulation: 26 weeks of randomized treatment followed by a 26-week extension. The pooled report included 806 participants (543 tesamorelin, 263 placebo), rather than the 740 quoted in the forum post. Read the pooled trial report ↗
Studied frequency
Daily · seven days per week
MTWTFSS
The pivotal daily schedule underlies the clinical results. Participants continuing treatment maintained VAT reductions through week 52.
CommunityDiscussion
Five-on/two-off · days off each week
M: onT: onW: onT: onF: onS: offS: off
This is discussed in the thread; the labels and trials reviewed here do not establish comparable outcomes for this pattern. Five administrations are two fewer per week, but the effect on VAT or IGF-1 cannot be calculated from that count.
Current WR and SV doses are lower in milligrams because their labels describe exposure comparable to the older 2 mg formulation. They are not interchangeable. “WR” means weekly reconstitution; the labeled injection schedule remains daily. WR label · sections 2 and 12.3 ↗ · SV label ↗
Questions raised by the community.
How these claims were checked
These summaries distinguish the thread’s proposals from the reviewed original reports and product labels. A forum post can suggest a useful research question without providing a verified clinical protocol. No trial directly comparing daily and five-on/two-off was identified in this review.
Community question
1 mg versus 2 mg?
The thread proposes 1 mg initially, then 2 mg. A published 53-person, 12-week trial did compare 1 mg, 2 mg and placebo in type 2 diabetes. It examined metabolic safety, not equivalent VAT loss or a starter protocol for the wider community.
The post proposes bedtime use while fasted. The reviewed labels do not specify mandatory bedtime or a two-hour fasting window. They report mean plasma half-lives of 8 minutes for SV and 11 minutes for WR in healthy subjects; that does not establish the best time of day or justify days off.
Perfect B describes 1 mg on five days each week, for three months followed by two months off. It also discusses combinations with ipamorelin; that does not establish added benefit or the safety of combining the compounds.
Its “25 units” amount corresponds to 1 mg only at 4 mg/mL on a U-100 syringe. It is not a universal tesamorelin conversion. The clinic’s cycle rationale is not evidence that breaks prevent receptor desensitization.
Competitive sport: the 2026 WADA list names tesamorelin under S2.2.4, prohibited at all times. Athletes using prescribed treatment should consult their anti-doping organization about therapeutic-use exemption requirements. WADA list · S2 ↗
Duration and stopping: daily study periods of 26–52 weeks are not a universal “cycle.” The label describes VAT reaccumulation after withdrawal and says long-term cardiovascular safety is not established. Waist measurements and self-reports alone cannot distinguish VAT from other body changes. Clinical studies and limitations of use ↗
STUDIES WORTH UNDERSTANDING
Beyond the headline.
Selected studies and clinical reports, with the question, context and limitations close at hand.
Opening values and worked examples illustrate arithmetic; they are not preparation instructions or recommended amounts. Selecting a compound labels the calculation and does not supply a dose or powder-volume correction.
Enter the documented vial mass, preparation information and target amount to see how mass and volume connect.
An arithmetic example
20 mg in an assumed final 1 mL gives 20 mg/mL. An entered 1 mg corresponds to 0.05 mL, or 5 U-100 units, with 20 theoretical portions before losses.
Calculator inputsStarting numbers are worked examples, not recommended doses or preparation instructions. Dose-to-units and units-to-dose views describe the same quantities. The calculator defaults to 1 mL (100 U-100 units) of liquid added as an estimate of total solution volume.In plain EnglishChoose the amount on your vial label, the liquid you added, and the amount per dose you already want to calculate. Type an exact amount or use the slider; neither selects a dose for you.
CompoundSelect a name to organize your calculation. Names do not set the vial mass, target amount, or volume. NAD+ is a related compound, not a peptide. For blends, enter each component’s mass separately.In plain EnglishThis is the label on your calculation, like naming a folder. Choosing a name does not decide how much material or liquid to use.
Amount in the vialThe total mass of this compound in the vial, not its concentration. Use the mass stated in your source documentation. 1 mg = 1,000 mcg.In plain EnglishThink of mass as the amount of material you started with. Adding liquid spreads that material out; it does not create more of it. A vial marked 5 mg contains 5,000 mcg.
mg
Liquid added to the vialThe starting 1 mL (100 U-100 units) is an editable example. For a general estimate, we use the liquid added as the total solution volume; powder displacement is not included. If your preparation specifies a different final volume, enter it in Advanced. The calculator does not choose a diluent or mixing procedure.In plain English100 units on a U-100 syringe means 1 mL of liquid added; 200 units in total means 2 mL. The starting 1 mL (100 U-100 units) is an editable calculator example, not a mixing recommendation for every product. The simple calculation uses added liquid as an estimate of final volume. A correction needs data for the specific formulation, not just a peptide name. Enter a documented final volume in Advanced when available.
mL
Amount per doseType your exact amount, or adjust the 1–20 mg slider in whole-mg steps or click a labeled value. Type decimal amounts directly in the field. The slider range is a navigation shortcut, not a recommended dose range. Amounts below 1 mg or above 20 mg can be typed directly. Switching mg/mcg preserves the amount.In plain EnglishThe amount in the vial describes the whole batch. This input describes just one portion. For example, if a 5 mg vial makes 20 equal portions, each contains 0.25 mg (250 mcg). Enter the amount from your protocol and the calculator finds the liquid volume for it.
Slider range: 1 to 20 mg, in 1 mg steps. Click a labeled value to select it. Type exact decimal amounts in the field above.
Advanced Volume & syringe settings
Calculation basisA stated concentration is product-specific and refers to the selected blend component. It does not reveal a recoverable fill volume or establish the product’s allowed number of doses. Entering a different compound or blend component clears this concentration.In plain EnglishUse the mg/mL printed on your product label when you have it. Otherwise, you can use a documented final volume or keep the liquid-added estimate.
Syringe capacityOn a U-100 scale, 100 markings equal 1 mL. Capacity changes the displayed scale, not the concentration. These markings are not compound activity units (IU).In plain EnglishCapacity is how much liquid the syringe can hold when full. On a U-100 syringe, 10 units means 0.1 mL, and 100 units means 1 mL. A smaller syringe holds less, but each U-100 unit still means 0.01 mL.
Marked intervalRead the actual graduation spacing on your device. This setting flags values that fall between markings; it does not round the calculation or guarantee measurement accuracy.In plain EnglishThese are the steps between lines on your syringe. Like a ruler, a value can land between two lines. The calculator points that out instead of moving the answer to a nearby line.
02 / YOUR RESULTCalculated
Tesamorelin
Estimate · assumes 1 mL added = total volume
U-100 syringe1 mL capacity · 100 unitsSyringe capacityAll unit conversions here use a U-100 scale: 100 units = 1 mL. The selected capacity changes the maximum volume shown, not the concentration. These are volume scale units, not compound activity units (IU).In plain EnglishCapacity is how much liquid the syringe can hold when full. On a U-100 syringe, 10 units means 0.1 mL, and 100 units means 1 mL. A smaller syringe holds less, but each U-100 unit still means 0.01 mL.
Amount per dose
1 mg
1,000 mcg
Full doses per vial Doses per vialTotal vial mass divided by the entered dose amount, rounded down to complete doses. This is a theoretical count before handling losses. It may exceed the labeled usable doses because of overfill or discard instructions. A single-dose vial is not reusable just because arithmetic shows more portions.In plain EnglishAn aliquot is just a portion. This is how many full, equally sized portions the mixture could make in perfect conditions, like counting full glasses from a pitcher.
5
Theoretical · before losses
Syringe amount per dose Result displayBoth views describe the same calculated volume. U-100 scale units = volume in mL × 100. Changing the display does not change the concentration, target amount, or calculation. This conversion does not apply to other syringe scales or biological activity units (IU).In plain EnglishThe liquid amount stays the same when you switch views. It is like showing the same distance in centimeters or inches: only the number and label change. Here, 0.1 mL is 10 units on a U-100 syringe.
20units
0.2 mL
Amount remaining Amount remainingThe selected compound’s vial mass minus the mass in complete doses. This is a theoretical remainder, not a measured or recoverable amount; overfill, dead space, transfer losses and product discard rules are excluded.In plain EnglishAfter counting all the full doses, this is the amount left over on paper. A result of 0 mg means the amounts divide evenly; handling losses can still leave you with fewer usable doses.
0 mg
After 5 full doses
U-100 volume scaleVolume scaleThis illustration shows calculated volume against the selected capacity. It is not a physical measurement tool. The value is not rounded to the smallest marked interval.In plain EnglishThe picture helps you compare the answer with the syringe you selected. It is a drawing, so do not hold a real syringe up to your screen to measure liquid.
020406080100
Illustration only · calculated value, without rounding
Concentration & remaining liquid
Concentration ConcentrationMass divided by final solution volume. For a blend, this is the selected component’s concentration.In plain EnglishThink of juice concentrate: the same amount of concentrate in less water makes a stronger mixture. Here, mg/mL tells you how much material is in each 1 mL of liquid.
5 mg/mL
Per U-100 unit Amount per scale unitOne U-100 scale unit represents 0.01 mL. This is the mass of the selected compound in that volume.In plain EnglishEach U-100 unit is a tiny portion of liquid: one hundredth of a milliliter. This number tells you how much material is inside that tiny portion.
50 mcg
Full portions in vial Complete aliquotsTheoretical count of complete portions at the calculated volume. This excludes transfer loss, dead space, and any change in solution volume.In plain EnglishAn aliquot is just a portion. This is how many full, equally sized portions the mixture could make in perfect conditions, like counting full glasses from a pitcher.
5
Theoretical remainder Remaining volumeMass-equivalent liquid remaining after complete portions. This is not a measured fill or recoverable volume. Handling losses, overfill and product discard rules are not included.In plain EnglishThis is a paper-and-pencil remainder: leftover compound mass expressed as liquid. It does not measure what can be recovered from the vial. Losses and product discard instructions can make the usable amount smaller.
0 mL
Saved calculations stay on this device.
See the calculation
Concentration = mass ÷ final volume
5 mg ÷ 1 mL = 5 mg/mL
Volume = target mass ÷ concentration
1 mg ÷ 5 mg/mL = 0.2 mL
U-100 markings = volume × 100
0.2 mL × 100 = 20 units
Complete portions = floor(vial mass ÷ amount per portion).
Displayed numbers are rounded for readability; the calculation uses unrounded values.
CONCENTRATION → VOLUME
Convert a known dose.
Dosage calculatorUse the documented concentration and an amount you already want to calculate. U-100 units are volume markings, not biological activity units or IU.
Already have the concentration? Find the matching mL and U-100 syringe reading.
Need the concentration first? Use the Reconstitution tab.
YOUR CONVERSION
On a U-100 syringe
5units
0.05 mL · 0.25 mg
Volume = target amount ÷ concentration0.25 mg ÷ 5 mg/mL = 0.05 mLU-100 units = mL × 100
Example inputs are editable. The reading is calculated without rounding to a physical graduation.
ONE MEASUREMENT, ANOTHER UNIT
Keep the units clear.
Mass, volume and activity unitsMass and volume are separate dimensions. Converting between them requires a concentration. IU describes biological activity and has no universal conversion to mg or syringe units.
Convert mass or liquid volume. U-100 markings always refer to a 100-units-per-mL scale.
YOUR CONVERSION
1 mg equals
1,000mcg
1 g = 1,000 mg = 1,000,000 mcg
For mass → syringe volume, switch to Dosage and enter a concentration.