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Hormones & ancillaries / Compound guide

HCG guide

HCG, or human chorionic gonadotropin, is a reproductive hormone with activity resembling pituitary luteinizing hormone.[2] PinPoint represents its vial setup in international units and stores a separate half-life reference for tracking.[1]

PINPOINT EDITORIAL · UPDATED 05 OCT 2026
FDA-labeled presentation · 33 h model input

Editorial still life for hormones & ancillaries research guides

ILLUSTRATION / COMPOUND LIBRARY SERIES

At a glance

HCG library factsHormones & ancillaries. Routes: subcutaneous, intramuscular. Half-life model input: 33 hours. Package: 5,000 IU / package. FDA-labeled presentation. CATEGORYROUTES IN LIBRARYHALF-LIFE MODEL INPUTTYPICAL PACKAGERESEARCH STATUS Hormones & ancillariessubcutaneous · intramuscular33 hours5,000 IU / packageFDA-labeled presentation SOURCE / PINPOINT COMPOUND LIBRARY

Read the record in context

HCG combines an activity-based package amount with a hormone identity. The 5,000 IU figure must retain its unit wherever it is entered or exported. It cannot be read as 5,000 mg or as 5,000 syringe markings simply because all three can appear as numbers in an interface.[1]

What the research says

The cited chorionic gonadotropin label describes a hormone whose activity resembles pituitary luteinizing hormone. Its clinical pharmacology section explains stimulation of gonadal steroid production: androgen production in the testis and progesterone production by the ovarian corpus luteum. These mechanisms place HCG within reproductive endocrinology.[2]

This source is prescribing information for an intramuscular preparation, rather than a new study with a separately reported volunteer cohort. It describes product identity, biological activity, and labeled clinical contexts. It does not provide a concentration-time experiment that independently verifies the library's 33-hour tracking input.[2][1]

HCG's package units express biological activity, unlike milligrams of an esterified testosterone preparation. The library also exposes a subcutaneous recording route, which is separate from the route on this particular label. Neither that interface choice nor the shared reproductive context makes HCG and testosterone equivalent substances.[2][1]

Cited amounts

The library records 5000 IU as a labeled package amount. This is the total listed in that presentation, not an amount selected for administration. No personal dosing range is inferred from it.[1][3]

Explore the HCG dosing chart

Half-life and timing

The HCG model halves its starting amount every 33 hours. At 66 hours it retains 25%, while at 132 hours it retains 6.25%. Five intervals total 165 hours, just under seven days, and still leave 3.125%. This is a reference-based equation rather than a prediction from a person's laboratory values. The source's product context and the actual recording route remain relevant, and the arithmetic does not provide a schedule or establish complete biological clearance.[1][5]

HCG: modeled fraction over five half-livesStarting at 100 percent, the model halves each 33 hours. After 165 hours, 3.125 percent remains. This is arithmetic, not a measured concentration. ELAPSED HOURS / MODELED STARTING AMOUNT 0 h100%33 h50%66 h25%99 h12.5%132 h6.25%165 h3.125% Explore the HCG half-life model

Reconstitution

Using the referenced 5,000 IU and a purely assumed 2 mL final volume produces 2,500 IU/mL. A hypothetical 0.1 mL then corresponds to 250 IU. Notice that dividing activity units by milliliters retains IU in the concentration numerator throughout. No universal mass conversion is implied. The numbers demonstrate how a known amount would be represented in a known volume; they do not determine an HCG amount to administer or replace a product's preparation instructions.[3]

5,000 IU ÷ 2 mL = 2,500 IU/mL
Open HCG conversion math

Tracking it in PinPoint

From a reference to a record

Built for peptide, TRT, and GLP-1 schedules. Set up your vial in seconds, log every dose, and see your modeled levels between doses. Enter vial size in mg, mcg, or IU and water volume for instant concentration and syringe units. Track vials and prefilled pens side by side.[4]

The Home curve models your levels between doses from published half-life data. Drag to scrub modeled values at any timestamp, or preview 30 days of a dose pattern. Ask PinPoint provides educational reference with sources; it never recommends a dose or a schedule change. These features record and visualize entered information, with the limits of each compound's source data still applying.

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Frequently asked questions

Are HCG IU the same as syringe units?
No. IU in the HCG package records the amount of the compound, while the markings on a U-100 syringe represent volume. The calculation must pass through IU per mL before converting an entered IU amount into mL; the identical word units does not make the quantities equal.[1][2]
Can an HCG calculator divide IU by milliliters?
Yes. The quotient is IU/mL, which can then convert an independently selected IU amount into volume. The arithmetic stays in activity units. It does not require pretending that IU are milligrams or that they directly equal syringe markings.[1][5]
What does the 5,000 IU HCG number refer to?
It refers to the whole multiple-dose package identified by the library's label citation. It does not specify how much is administered on any occasion. Package inventory and recorded administration amounts remain separate fields with different purposes.[1][5]
Can a peptide tracker app record HCG?
PinPoint's compound library includes HCG. The app description covers logging compound, dose, site, and pain level, as well as viewing modeled levels between recorded doses. The curve uses published reference inputs and does not account for individual variation. The tracker records the schedule entered by its user; it does not choose a dose or recommend a schedule change.[1][4]

Sources

Facts and reference links were retrieved from the PinPoint application library on 5 October 2026. Links below preserve the library's citations; a catalog source supports a package amount only. Source references carried from the library have not all been independently reverified. Arithmetic examples are identified separately from clinical evidence.

  1. PinPoint compound library, HCGSnapshot of the application library; its references and uncertainty are retained below.Retrieved 2026-10-05 · library
  2. DailyMed prescribing informationIdentity and research summary checked against this document on 5 October 2026. Clinical pharmacology and product-description sections.Retrieved 2026-10-05 · library-reference
  3. Labeled package referencePackage amount only; not a clinical amount or endorsement.Retrieved 2026-10-05 · label
  4. PinPoint App Store descriptionFeature wording from the approved application description, not pricing.Retrieved 2026-10-05 · app-description
  5. Unit conversion and exponential-decay arithmeticC = amount / volume; remaining fraction = 2^(-elapsed / half-life). These are illustrations, not measurements.Retrieved 2026-10-05 · arithmetic