T-Entbolin 250 — Testosterone Enanthate
Chemical Name: Testosterone Enanthate | Dosage: 250mg/ml
Dosage Forms
- Multi-dose vial: 250mg/ml × 10ml
- Single-dose ampoule: 250mg/ml × 1ml
Presentation
- 10ml Multi-dose Vial: Labeled “Testosterone Enanthate 250mg/ml”, with Keifei® wording on the side. Sealed with a blue flip-off cap imprinted with Keifei®. Each vial includes one QR authentication code. Packed 10 vials per outer box (white & blue).
- 1ml Single-dose Ampoule (250mg/ml): Each ampoule imprinted with 3 rings (red, yellow, red) and a red dot below; all wording is imprinted. Supplied in trays of 5 × 2 (10 per inner box). Outer box: 100 ampoules (10 inner boxes × 10 amps). Each inner box carries one QR authentication code.
About T-Entbolin 250
Testosterone Enanthate is an oil-based injectable steroid known for its slow release profile. After injection, testosterone levels rise gradually and may take up to 3 weeks to fully diminish.
It is a powerful anabolic-androgenic hormone but carries a high tendency to convert into estrogen. This can result in noticeable water retention, reducing muscle definition as subcutaneous fluids build. Fat storage may further mask muscle features, and elevated estrogen can increase the risk of gynecomastia (puffiness under the nipple).
Despite these drawbacks, testosterone is considered essential in mass-building cycles and remains a core compound for bodybuilders.
Key Characteristics
- Long-acting testosterone ester with a slow release.
- Core anabolic hormone for bulking cycles.
- High tendency to aromatize → potential for estrogen-related side effects.
- Provides steady strength and muscle mass gains.
Side Effects
As a testosterone product, typical androgenic side effects may occur:
- Oily skin and acne
- Increased aggressiveness
- Facial or body hair growth
- Male pattern baldness (in predisposed individuals)










