Sustanon vs Testosterone Enanthate: complete comparison (esters, frequency, profile)
| Critère | sustanon | testosterone-enanthate |
|---|---|---|
| Composition | 4 esters (testosterone) | Enanthate (testosterone) only |
| Effective half-life | ~7-8 d (mixed) | ~4.5 d |
| Optimal injection frequency | EOD or 3×/week | 2× per week |
| Serum stability | Variable (peaks) | Smooth |
| PCT starts | ~3 wk after last inj | ~2.5 wk after last inj |
| Aromatization | Yes (equivalent) | Yes (equivalent) |
| Relative cost | Often more expensive | Reference |
| Detection (mg eq.) | Same as testo | Same as testo |
Quand choisir sustanon
Sustanon 250 is a mixture of four testosterone esters (propionate 30 mg, phenylpropionate 60 mg, isocaproate 60 mg, decanoate 100 mg per mL) originally designed for clinical TRT with spaced posology (Bhasin 2018: Sustanon 250 mg every 2-3 weeks in clinic). Choose it when: (1) it is what is locally available (very common in Europe and Asia), (2) you want a faster start thanks to propionate which releases its testosterone in 2-3 days, (3) you tolerate frequent injections well (ideally EOD or 3×/week to stabilize the serum profile despite the propionate peaks). The mixed kinetics (Schulte-Beerbühl 1980 extrapolated) create serum peaks and troughs if injection is only weekly — that is the classic Sustanon error in amateur practice. Anabolic and androgenic profile identical to pure enanthate (Kicman 2008): ratio 100:100, equivalent aromatization, comparable effective dose. No intrinsic pharmacological advantage over enanthate alone at equivalent dose. Limitations: difficulty of PCT timing (decanoate extends persistence ~3 weeks), possible allergy to peanut oil vehicle (varies by brand), propionate peak that can give sense of overdose at cycle start.
Quand choisir testosterone-enanthate
Enanthate alone is the reference standard for exogenous testosterone: a single ester, well-documented linear kinetics (Schulte-Beerbühl 1980: half-life 4.5 days, peak at 24-72 h, return to baseline at 3 weeks), simple posology (200-250 mg 2× per week is the stability/comfort optimum). Choose it for: (1) a first cycle where management simplicity matters, (2) long-term TRT where predictability is critical for long-term titration, (3) any protocol where you want to minimize variables (one ester = one pharmacokinetic behavior). The Bhasin 1996 RCT (NEJM) on which all modern dose-response literature rests uses enanthate at 600 mg/week × 10 weeks: +6.1 kg lean mass and +22% on bench press. The Bhasin 2001 RCT traces the linear dose-response up to 300 mg/week then plateau. Its simple kinetics allow precise PCT timing (Coviello 2008: start at 14 days after last injection). Well-characterized tolerance profile: aromatization managed by dose-dependent AI, dose-dependent erythrocytosis monitored by hematocrit, standard lipid monitoring. Main drawback: variable availability by region (cypionate dominates in US, enanthate in Europe).
Combinaison ?
The Sustanon + enanthate combo has no pharmacological interest: it is the same active molecule (testosterone), only the esters differ. If you have both available, simplify to pure enanthate (1 ester = 1 kinetics = 1 monitoring scheme), or use Sustanon as 4-week kickstart to benefit from fast start via propionate, then switch to pure enanthate for long-term stability. Practical scheme: Sustanon 250 mg EOD × 2 weeks at cycle start (rapid installation, therapeutic levels reached in 4-5 days instead of 14), then enanthate 250 mg 2× per week × 10 weeks. No change in total weekly dose, just a more stable time profile. AI titrated on estradiol measured at W2 and W6 (anastrozole 0.5 mg 2× per week as routine). PCT started 3 weeks after last injection (Sustanon's decanoate or enanthate stretch persistence similarly), with hCG 1500 IU EOD × 10 days then clomid 50 mg/d × 4 weeks to restart the HPG axis. Sample TRT-bridging timeline if used in succession: W0 baseline complete hormonal panel, W1 start with Sustanon 250 mg EOD (4 doses in first 8 days for rapid loading), W3 switch to enanthate 250 mg 2× per week, W4 first E2 measurement and AI titration, W8 mid-cycle full panel, W12 last enanthate injection, W15 PCT start (3 weeks post-last because long-ester clearance), W23 post-PCT recovery confirmation. Injection rotation: Sustanon prop component can sting more than pure enanthate sesame oil — rotate injection sites daily during Sustanon phase (right deltoid, left ventro-gluteal, right vastus, left abdomen SC). The hybrid approach has the modest advantage of faster therapeutic-level attainment in the early phase of the cycle.
FAQ
- Sustanon weekly or EOD?
- EOD or minimum 2× per week to stabilize serum profile. The propionate (30 mg/mL) drops in 2-3 days, so weekly injection creates a major peak at D1-D3 (retention/estrogen effect) followed by a trough at D5-D7 (libido drop, sense of cycle not working as well). In clinic, the 2-3 week spacing is compensated by decanoate (release over 3 weeks) but in bodybuilding use at higher doses, more frequent injection considerably smooths estrogenic side effects.
- Does Sustanon give more gains than enanthate?
- No, at equal dose and equivalent mg of testosterone. It is the same active molecule. Reports of 'I gained better under Sustanon' are explained by: (1) more frequent injections (which would have produced the same result with enanthate), (2) faster start via propionate giving impression of better early gains, (3) placebo effect linked to the perceived complexity of the product. Literature shows no anabolic efficacy difference between esters at equivalent dose (Kicman 2008).
- When to start PCT after Sustanon?
- Start at 21 days (3 weeks) after last injection. Sustanon decanoate has an effective half-life of about 6 days with extended release over 2-3 weeks from the IM oil depot. Starting PCT too early exposes to residual suppression that cancels the SERM effect. Scheme: hCG 1500 IU EOD × 10 days from D21, then clomid 50/25/25/25 mg or nolvadex 40/20/20/20 mg × 4 weeks (Rahnema 2014). T total, LH, FSH panel at W8 post-PCT to confirm recovery.
- Sustanon or enanthate for TRT?
- Enanthate or cypionate, unless otherwise indicated. Modern TRT aims at stable levels (Bhasin 2018): a single long ester is more predictable for titration. Clinical TRT Sustanon is prescribed 250 mg every 2-3 weeks, which creates important fluctuations (prop peak at D3, decanoate trough at D18) responsible for roller-coaster symptoms in some patients. Enanthate at 100-150 mg/week or cypionate at 100 mg/week in subcutaneous injection offers optimal stability.
- Does Sustanon peanut oil pose problems?
- For users allergic to peanut, yes — possible inflammatory or anaphylactic reaction. Original pharma brands (Organon/Aspen) use peanut oil; generic brands may use sesame or MCT oil. Always check the vehicle on the leaflet. For a user with known allergy: prefer enanthate in sesame oil or cypionate in cotton oil. Rare cases of lipoid pneumonia if accidental intravascular injection — aspirate before IM injection.
- Price difference between Sustanon and enanthate?
- Variable by region. On the European black market, Sustanon is often more expensive because perceived as 'pharma class', but at equivalent mg, generic enanthate is typically 30-50% cheaper. For pharmacy TRT on prescription, both are reimbursed in European countries (per local marketing authorization), sometimes with preference for Sustanon by prescriptive tradition. French hospital pharmacy favors enanthate (Andriol Testocaps also exists in oral undecanoate).
- Can you convert a Sustanon dose to enanthate?
- Approximately yes, in free testosterone equivalent: 250 mg of Sustanon contains ~176 mg of active testosterone (after ester hydrolysis), equivalent to about 180 mg of enanthate (which releases ~73% free testo). In amateur practice, you convert 250 mg Sustanon = 250 mg enanthate without big error, because dosages are approximate and the therapeutic window is wide. For clinical TRT, titration by biological panel is more precise than theoretical conversion.