Frequently asked questions
Short answers about the tools, units and the information behind each guide.
Why do the charts look different from other plotter sites?
Two sites can draw different curves because they use different formulations, absorption rates or assumptions about how doses overlap. The shape alone does not tell you which is more accurate.
Check the compound’s model notes and units. Changing your schedule changes the example; it does not fit the model to your body. Read a curve.
Are these peptides safe to use?
A catalog entry or a plotted curve cannot tell you that a product is safe for you. The exact formulation, source, health history and other medicines matter. An approved medicine and a similarly named research product are not interchangeable.
Read the compound guide’s evidence and side-effect guide. Bring the actual product information to a qualified clinician or pharmacist when discussing use.
The elimination half-life of a compound is X days. Why isn't the level at 50% by day X?
Absorption and overlapping doses can both change the shape. Medicine may still be entering the bloodstream after an injection, while a later dose adds to what remains from earlier ones. The curve is not simply a countdown from the moment of injection.
Half-life describes a stage of the decline under particular assumptions. On a normalized chart, 100% means that curve’s peak—not the whole dose still being present. Model explanations.
How do I convert between mcg, mg, and insulin units?
mg is an amount; mL is a volume. One mg equals 1,000 mcg. Divide the prescribed amount in mg by the stated concentration in mg/mL to find the liquid volume.
On a U-100 insulin scale, the 10-unit line is 0.1 mL. It is not 10 mg or 10 IU of another medicine. See the worked diagram, and confirm the concentration and device if the instructions do not agree.
Where should I inject peptides?
Start with the exact product’s instructions. “Peptide” does not specify an injection route. For example, Ozempic is injected under the skin, while the U.S. Pregnyl label specifies injection into muscle.
The injection-site guide explains those distinctions. The tracker records a chosen site; it cannot decide which route or site is appropriate.
How do I request a new compound?
Send the name through the contact form, along with the exact product or formulation and any useful study links.
We review the evidence before choosing a model. Some entries can use a labelled estimate; others, such as mixtures, need a different explanation. A request does not automatically create a concentration curve.
Will the plotter accurately represent my blood levels?
Use the curve to explore timing, not to predict your blood test. It calculates an example from fixed model inputs. A published study model, a researched estimate and an older catalog assumption do not carry the same certainty.
Open the compound’s model details to see its source, formulation and limits. How the models work.
How often is the compound database updated?
The catalog changes when we review new sources or correct an existing entry; there is no fixed update timetable.
Each guide separates useful product facts from model assumptions. Check its sources and source-check dates for context, and see what changed. A citation does not mean every legacy model input has been independently calibrated.
How should I store reconstituted peptides?
Use the storage conditions and discard time for the exact product after mixing. There is no universal “keep it in the fridge for a month” rule, and bacteriostatic water does not create one.
Some formulations are used immediately; others have a specified storage period. The storage guide compares labelled examples. A calculator cannot assign an expiry to a research powder.
Can I compare multiple dosing protocols of the same compound?
Yes, but choose the view that matches your question. In the main plotter, rows for the same compound are added together. “Split phases” shows each row’s contribution to that combined schedule.
Use protocol comparison for separate preset examples. A smoother line or similar peak does not establish equal effects or a preferred regimen.
Are peptides legal?
Check the exact product, country and activity involved. Approval, a prescription, import rules and sale rules are separate questions. A “research use only” label is not a general exemption; FDA describes misleading research-labelled GLP-1 sales.
Competitive sport has separate rules. Consult the current WADA list and your relevant local regulator rather than assuming a catalog listing means permitted use.
How do I use the calendar input mode?
Choose Calendar in the plotter, select a date, then add the compound and amount. The input shows the compound’s units—hCG uses IU, while most entries use mg. You can enter several doses on a date and explore irregular timing.
The curve uses those dated entries. Switch to Schedule to work with repeating rows; the two views are different ways to enter an example.
How do I know if a peptide source is legitimate?
A seller’s ingredient list, a laboratory report and a clinical study answer different questions. None automatically proves the others. A certificate only covers the sample and tests it actually reports; a name or percentage alone is not proof of sterility, contents or benefit.
For a prescribed medicine, check the product and dispensing source with the pharmacist. FDA’s online-product guidance explains why a research label or familiar drug name is insufficient.
Which GLP-1 should I research: semaglutide, tirzepatide, or retatrutide?
Compare weight-loss results, side effects and whether the actual product is approved for your goal. Semaglutide and tirzepatide have approved products; retatrutide remains experimental. The strongest weight-loss claim is not automatically the best fit for an individual.
The three-way guide compares appetite and weight-loss results, dosing context and product status. A concentration overlay is not a weight-loss prediction or a dose-conversion table.