Injectable
Isotest 250
250 mg/mL
Isotest 250 is a four-ester testosterone blend combining propionate, phenylpropionate, isocaproate, and decanoate ester profiles. Each component ultimately delivers testosterone after ester cleavage.

Product Summary
- Product
- Isotest 250
- Strength
- 250 mg/mL
- Dosage Form
- Injectable
Product Information
Professional injectable product profile.
Product overview: Isotest 250 is an oil-based injectable testosterone blend containing four esterified testosterone components: propionate, phenylpropionate, isocaproate, and decanoate. The total testosterone ester content is 250 mg per 1 mL.
Formulation profile: The ester combination provides differing release characteristics within a single formulation. Although the esters differ, each component ultimately delivers testosterone after ester cleavage, so testosterone-related review remains central.
Important considerations: Relevant considerations include hormonal suppression, estrogenic effects, fertility changes, elevated red-blood-cell levels, and cardiovascular risk. The verified carrier system includes pharmaceutical-grade carrier oil, benzyl benzoate, benzyl alcohol, and Miglyol 840. Blend presentation should not obscure that all four components ultimately contribute testosterone exposure. The table records each ester separately for specification clarity and product review.
| Product name | Isotest 250 |
|---|---|
| Strength | 250 mg/mL |
| Active ingredient or blend | Testosterone Propionate, Testosterone Phenylpropionate, Testosterone Isocaproate, and Testosterone Decanoate |
| Composition per 1 mL | Testosterone Propionate 30 mg Testosterone Phenylpropionate 60 mg Testosterone Isocaproate 60 mg Testosterone Decanoate 100 mg Total testosterone esters: 250 mg Oil-based injectable solution |
| Dosage form | Oil-based injectable solution |
| Carrier oil | Pharmaceutical-grade carrier oil; benzyl benzoate; benzyl alcohol; Miglyol 840 |
| Pharmaceutical grade | Pharmaceutical grade carrier system stated in the source |
Inquiry
Request product information for Isotest 250.
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