Sustanon 250 (Sust)
Injectable steroidSust · Sust 250 · Sus
Blend of 4 testosterone esters: Propionate (30 mg), Phenylpropionate (60 mg), Isocaproate (60 mg), Decanoate (100 mg). Less stable hormonal profile than Enanthate alone. Popular but 2×/week injection recommended to smooth out the peaks.
Half-life
7–8 jours (mélange)
Detection
3 mois
Anabolic ratio
100
Androgenic ratio
100
Dosages
| Beginner | 250–500 mg/sem |
| Intermediate | 500–750 mg/sem |
| Advanced | 750–1000 mg/sem |
| Female | Not recommended |
Frequency : 2× / week (every 3-4 days for stability)
Effects
- Lean mass
- Strength
- Libido
- Recovery
- Sense of well-being
Side effects
- Variable estrogen peaks (ester blend)
- Acne
- Gyno
- Water retention
- HPTA shutdown
Support supplements
Synergies & stacks
Avoid
- 1×/week injection (estrogen peaks from Propionate)
- Stopping without PCT
Sources
Studies and scientific publications this guide relies on.
- Kicman AT (2008). Pharmacology of anabolic steroids. British Journal of Pharmacology. doi: 10.1038/bjp.2008.165
Revue de pharmacologie des AAS : Sustanon 250 est un mélange de quatre esters de testostérone (propionate 30 mg, phénylpropionate 60 mg, isocaproate 60 mg, décanoate 100 mg) conçu pour combiner libération précoce et résiduel prolongé — demi-vie effective mixte ~7-8 jours.
- Schulte-Beerbühl M, Nieschlag E (1980). Comparison of testosterone, dihydrotestosterone, luteinizing hormone, and follicle-stimulating hormone in serum after injection of testosterone enanthate or testosterone cypionate. Fertility and Sterility. doi: 10.1016/s0015-0282(16)44543-7
Étude pharmacocinétique chez l'homme sain : profils sériques détaillés d'esters de testostérone après IM, base de la modélisation des mélanges multi-esters comme le Sustanon (somme pondérée de cinétiques individuelles).
- Bhasin S, Storer TW, Berman N, et al. (1996). The effects of supraphysiologic doses of testosterone on muscle size and strength in normal men. New England Journal of Medicine. doi: 10.1056/NEJM199607043350101
RCT NEJM (600 mg/sem testostérone, 10 sem) : gains de masse maigre +6,1 kg, force +22 % vs placebo — dose-réponse applicable au Sustanon par équivalence (500-750 mg/sem en intermédiaire).
- Bhasin S, Brito JP, Cunningham GR, et al. (2018). Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology & Metabolism. doi: 10.1210/jc.2018-00229
Guideline TRT 2018 : Sustanon (mélange 250 mg/ml) utilisé hors États-Unis pour TRT, posologie typique 250 mg toutes les 2-3 semaines en clinique, avec monitoring hématocrite, PSA, œstradiol — schéma plus espacé que l'énanthate du fait du décanoate.
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