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Evidence review

Peptide Detail

Library/Testosterone Enanthate
well researchedSafeFDA Approved

Testosterone Enanthate

Test E / Delatestryl

The most widely used testosterone ester globally for TRT and performance. Slightly shorter half-life than cypionate, making it popular in European and international protocols. Excellent clinical track record.

Half-life

5–8 days

Typical Dose

100–250 mg/week

150/250

Route

intramuscular

Category

sexual_health

Evidence Overview

Strength of evidence across clinical, expert, and experimental lanes.

How Testosterone Enanthate is dosed in practice

Usually taken by intramuscular injection. Typical range: 100–250 mg/week. Half-life: 5–8 days. Each card gives the dose, frequency and duration from one evidence lane: Clinical (human trials), Expert (practitioner protocols) or Experimental (early or animal data). These ranges describe what has been studied or used; they are not a prescription.

Work out the units to draw with the reconstitution calculator, how long a vial lasts with the vial duration calculator, and how levels fall between doses with the half-life calculator.

clinical90% confidence

Label dosing is 50–400 mg IM every 2–4 weeks. A SubQ autoinjector form is approved at 75 mg weekly, adjusted to trough levels.

Dose50–400 mg IM (label); 75 mg SubQ weekly by autoinjector, adjusted in 25 mg steps
FrequencyEvery 2–4 weeks (IM); once weekly (autoinjector)
DurationOngoing replacement
Sources
  • Drug label (testosterone enanthate injection)
  • Drug label (Xyosted)
expert90% confidence

Interchangeable with cypionate in clinical practice. Some practitioners prefer enanthate for its slightly faster clearance allowing quicker dose adjustments. Split dosing protocol identical to cypionate.

Dose100–200 mg/week (split doses)
Frequency2x per week
DurationOngoing — lifetime protocol
Sources
  • Testosterone replacement therapy practitioner consensus
  • International Society for Sexual Medicine guidelines

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Safety & Contraindications

  • Prostate or breast cancer
  • Polycythemia (hematocrit > 54%)
  • Severe untreated sleep apnea
  • Pregnancy (Category X)

Testosterone Enanthate: common questions

What is Testosterone Enanthate?

The most widely used testosterone ester globally for TRT and performance. Slightly shorter half-life than cypionate, making it popular in European and international protocols. Excellent clinical track record.

How is Testosterone Enanthate dosed?

Testosterone Enanthate is usually taken by intramuscular injection. Typical range in DoseCraft's library: 100–250 mg/week. Clinical (human trials): 50–400 mg IM (label); 75 mg SubQ weekly by autoinjector, adjusted in 25 mg steps; Every 2–4 weeks (IM); once weekly (autoinjector); Ongoing replacement. Expert (practitioner protocols): 100–200 mg/week (split doses); 2x per week; Ongoing — lifetime protocol. These ranges describe what has been studied or used; they are not a prescription.

Is Testosterone Enanthate FDA-approved?

Yes. Testosterone Enanthate is an FDA-approved prescription medicine; uses outside its approved indication are off-label.

What is the half-life of Testosterone Enanthate?

DoseCraft's library lists a half-life of 5–8 days. Half-life sets how often a compound is dosed and how long it takes to clear: about five half-lives.

Who should not use Testosterone Enanthate?

Listed contraindications: Prostate or breast cancer; Polycythemia (hematocrit > 54%); Severe untreated sleep apnea; Pregnancy (Category X).

Information is for educational purposes only. Always consult a licensed healthcare provider before starting any peptide regimen.

Page updated . How we grade evidence: methodology.

Disclaimer: DoseCraft is for educational purposes only and does not provide medical advice. These compounds are not FDA-approved for the uses described. Always consult a qualified healthcare provider. Full disclaimer

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