Test-Tren-Bold-Blend 400 refers to an illegal, black-market injectable anabolic-androgenic steroid (AAS). It is not a medically approved drug and is produced in unregulated laboratories for performance enhancement and bodybuilding.
The name indicates a high-potency mixture of three different steroids at a concentration of 400 milligrams per milliliter (mg/ml):
- Testosterone: The blend likely contains one or more testosterone esters (e.g., enanthate, cypionate, propionate). Testosterone promotes muscle growth and recovery.
- Trenbolone: A powerful synthetic steroid originally developed for veterinary use to promote muscle growth and appetite in cattle. It is valued by bodybuilders for its significant effects on muscle mass and strength.
- Boldenone: A veterinary steroid (often known as Equipoise) derived from testosterone, which is used to increase muscle mass and strength.
Significant health risks
This product, like other black-market steroid blends, carries severe and unpredictable health risks for several reasons:
- Unregulated production: It is not subject to quality control, so its actual dosage, purity, and sterility are not guaranteed. This raises the risk of contamination, incorrect dosing, and infection.
- High dosage: The 400 mg/ml concentration is significantly higher than doses used for legitimate medical purposes, which intensifies the severity and likelihood of side effects.
- Potent ingredients: The combination of three powerful androgens magnifies the potential harm to the body.
Cardiovascular damage
- Elevated blood pressure and cholesterol levels, increasing the risk of heart attack and stroke.
- Trenbolone, in particular, is known to be particularly harsh on cardiovascular health.
Hormonal dysfunction
- Severe suppression of natural testosterone production, which can cause testicular shrinkage, infertility, and gynecomastia (male breast development).
- The blend disrupts the body’s natural hormonal balance, with trenbolone known to suppress testosterone production.
Psychological effects
- Increased aggression (“roid rage”), paranoia, and mood swings.
- Trenbolone specifically is associated with high levels of anxiety and insomnia.
Androgenic side effects
- Severe acne, oily skin, and accelerated male-pattern hair loss.
- Increased body and facial hair growth.
Organ damage
- Risk of liver and kidney damage, especially with the high concentrations and unregulated nature of the product.
Irreversible effects for women
- Can cause virilization, including a deepened voice, clitoral enlargement, and increased facial hair growth.





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