It looks like you might be referring to **METATREN 100**, which is likely an underground lab (UGL) version of **Trenbolone**. However, the exact composition can vary depending on the manufacturer. Below is a general breakdown based on common UGL formulations:

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### **METATREN 100 (Trenbolone Blend) – Short Description**
**Compound:** Typically a **Trenbolone blend** (often a mix of fast and medium esters like **Tren Ace + Tren Enanthate**).
**Dosage:** ~100 mg/mL (varies by brand).
**Primary Use:** Bulking, cutting, or recomping (due to Trenbolone’s versatile effects).

### **Key Effects:**
✔ **Extreme muscle hardness & density**
✔ **Rapid strength gains**
✔ **Fat burning & enhanced vascularity**
✔ **No estrogen conversion** (but progestogenic activity)

### **Typical Dosage (Men Only):**
– **Beginner:** 200–300 mg/week
– **Advanced:** 400–600 mg/week
– **Cycle Length:** 8–10 weeks max (due to harsh side effects)

### **Common Side Effects:**
– **Night sweats, insomnia, aggression (“Tren rage”)**
– **Prolactin issues (gynecomastia risk, even without estrogen)**
– **Cardiovascular strain (high BP, cholesterol impact)**
Tren cough” (acute bronchospasm post-injection)

Best Stacked With:
Testosterone (200–500 mg/week as a base)**
Masteron or Proviron (for anti-estrogen & hardening effects)**
T3/Clen (for extreme cutting)

Detection Time:
– Up to 5 months (if Tren Enanthate is included).

Important Notes:
– NOT for beginners – Trenbolone is one of the strongest steroids with severe side effects.
– PCT (Post Cycle Therapy) is critical** (Nolva/Clomid + possibly Caber for prolactin).
– Blood pressure & lipid monitoring is highly recommended.