Trenbolone Acetate (Tren A)
Injectable steroidTren A · Tren Ace
⚠️ Advanced compound only. Anabolic/androgenic ratio 5× testosterone. Significant side effects. Reserved for experienced users.
Half-life
1 jour
Detection
5 mois
Anabolic ratio
500
Androgenic ratio
500
Dosages
| Beginner | 200–300 mg/sem |
| Intermediate | 300–400 mg/sem |
| Advanced | 400–600 mg/sem |
| Female | Strongly discouraged |
Frequency : EOD (every other day)
Effects
- Explosive strength
- Dry mass gain
- Lipolysis
- Vascularity
- Hardness
Side effects
- Tren-cough
- Night sweats
- Insomnia
- Aggression
- Cardiotoxicity
- Elevated prolactin
- Severe HPTA shutdown
- Severe acne
Support supplements
Synergies & stacks
Avoid
- Running without testosterone
- Beginners
- Cardiovascular issues
Sources
Studies and scientific publications this guide relies on.
- Yarrow JF, Conover CF, McCoy SC, et al. (2011). 17β-Hydroxyestra-4,9,11-trien-3-one (trenbolone) exhibits tissue selective anabolic activity: effects on muscle, bone, adiposity, hemoglobin, and prostate. American Journal of Physiology - Endocrinology and Metabolism. doi: 10.1152/ajpendo.00440.2010
Étude préclinique pivot chez le rat orchidectomisé : la trenbolone énanthate augmente la masse musculaire et préserve la densité osseuse de manière comparable à la testostérone supraphysiologique, mais sans élévation de l'hémoglobine ni hypertrophie prostatique — démonstration mécanistique d'une sélectivité tissulaire.
- Neumann F (1976). Pharmacological and endocrinological studies on anabolic agents. Environmental Quality and Safety. Supplement. pmid: 782871
Étude pharmacologique et endocrinienne princeps sur les anabolisants de synthèse, dont la trenbolone : caractérisation du profil androgéno-anabolique (ratio anabolique/androgénique élevé chez le rat), absence d'aromatisation, activité progestative et 19-nor — base de la classification pharmacologique des esters de trenbolone.
- Kicman AT (2008). Pharmacology of anabolic steroids. British Journal of Pharmacology. doi: 10.1038/bjp.2008.165
Revue de pharmacologie des AAS : la trenbolone acétate (ester court ~1 jour) est le 19-nor le plus puissant en termes d'affinité au récepteur androgène (~5× testostérone), n'est pas substrat de l'aromatase mais possède une activité progestative résiduelle pouvant induire gynécomastie et galactorrhée.
- Pope HG Jr, Wood RI, Rogol A, et al. (2014). Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement. Endocrine Reviews. doi: 10.1210/er.2013-1058
Énoncé Endocrine Society : la trenbolone figure parmi les composés les plus toxiques en termes de profil lipidique (effondrement du HDL), cardiovasculaire (hypertension), neuropsychiatrique (agressivité, insomnies, hyperhidrose) et rénal — données essentiellement issues de séries de cas chez utilisateurs amateurs.
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