Testosterone Enanthate
Long-ester testosterone. Most common injectable AAS. Used for TRT and cycles.
Overview
Long-ester testosterone. Most common injectable AAS. Used for TRT and cycles.
Elevates testosterone, estradiol (via aromatization), suppresses LH/FSH, increases haemoglobin/haematocrit, worsens lipids (moderate), can elevate liver enzymes slightly
Compound Guide
Ester: Enanthate -- 7-carbon chain ester. Provides a slow, steady release of testosterone over several days, peaking ~24-48h post-injection and tapering over 4-5 days.
Dosage:
- TRT / Cruise: 100-200 mg/week (target trough 20-30 nmol/L)
- Enhancement: 300-600 mg/week for 12-20 weeks
Injection Protocol:
- Inject 2x/week (e.g. Monday/Thursday) for stable blood levels
- IM: 25-27g needle, 1-1.5 inch, glutes/delts/VG
- SubQ: 27-30g insulin needle, 0.5 inch, abdomen/love handles (viable for TRT doses)
Key Notes:
- Gold standard for TRT and first cycles
- Aromatises dose-dependently -- monitor E2 if symptoms arise
- Allow 4-5 half-lives (~3 weeks) to clear before starting PCT
- Interchangeable with Cypionate at the same mg dose
- UGL "Test 400" is the same hormone at 400 mg/mL with more co-solvent; it saves oil but is widely reported to cause far more PIP. Same weekly mg, same bloodwork: Test 400 vs Test E, and why 400 mg/mL hurts more
Where the dose-response curve actually flattens out, using 600mg trial data: Does more testosterone build more muscle?.
Usage History
Markers to Monitor
Pairs With
How Testosterone Enanthate behaves when it is run alongside other compounds.
Commonly stacked with
Used to offset
Stacks the risk
Marker Interactions
Haematocrit
elevates · significant
Estradiol
elevates · moderate
Haemoglobin
elevates · significant
HDL
suppresses · moderate
Ferritin
suppresses · moderate
Iron
variable · moderate
Transferrin Saturation
variable · moderate
DHT
elevates · moderate
SHBG
suppresses · moderate
LH
suppresses · severe
Creatinine
elevates · mild
LDL
variable · mild
ApoB
elevates · moderate
CRP
variable · mild
Compare With
Testosterone Enanthate vs Testosterone Cypionate
Testosterone Enanthate vs Cypionate: Practical Differences
Testosterone Enanthate vs Sustanon 250
Sustanon 250 vs Testosterone Enanthate: Is the Blend Worth It?
Testosterone Enanthate vs Testosterone Propionate
Testosterone Enanthate vs Propionate: Pharmacokinetics, Injection Protocol, and Blood Test Timing
Testosterone Enanthate vs Testosterone Undecanoate
Testosterone Enanthate vs Undecanoate: Pharmacokinetics, Injection Protocol, and Blood Test Timing
Testosterone Enanthate vs Testosterone Decanoate
Testosterone Enanthate vs Decanoate: Half-Life, Steady State, and Why Test D Is Harder to Dial In
Frequently Asked Questions
Related Articles
Why Your HRV Is Low on TRT (Normal HRV by Age for Men)
Is an HRV of 25 low on TRT? Normal RMSSD by age for men, why wearables disagree, what testosterone, tren, clen and T3 do, and when low HRV matters.
Test 400 vs Test E, and Why 400 mg/mL Hurts More
Test 400 vs Test E: same hormone, so why does 400 mg/mL hurt more? Solvent load, mL conversions, bloodwork at equal doses, and when PIP is infection.
Is Imeglimin Better Than Metformin for Lifters?
Imeglimin (Twymeeg) is pitched as metformin plus MOTS-c plus NAD+. Here is what the trials show, what they don't, and the labs to run.
TRT Does Not Cause Heart Attacks (But Blasting Is Different)
TRAVERSE cleared replacement-dose testosterone for CV risk. It says nothing about bodybuilder doses. The honest line is on your bloodwork, not your syringe.
Quick Reference
Category
AAS
Half-Life
4-5 days
Detection Time
3 months