Testosterone Enanthate 500mg is an oil-based injectable compound containing testosterone bound to the enanthate ester. Once administered intramuscularly, it gradually releases testosterone into the bloodstream over several days, offering stable hormonal levels with just one or two injections per week.
In clinical settings, it is prescribed for treating male hypogonadism (low testosterone). In bodybuilding and athletic circles, Testosterone Enanthate 300mg is widely used to improve physical performance, enhance recovery, and support muscle hypertrophy. It plays a foundational role in many bulking and cutting cycles due to its ability to boost protein synthesis, increase nitrogen retention, and improve overall body composition.
Its longer half-life compared to fast-acting esters like propionate makes it a convenient and effective choice for users seeking consistent results without frequent injections.
Benefits
Increases lean muscle mass and physical strength
Enhances recovery, endurance, and training performance
Boosts libido and sexual function
Improves mood, energy levels, and motivation
Supports fat loss and improved metabolic function
Fewer injections needed due to extended half-life
Side effects
While Testosterone Enanthate 300mg is effective and commonly used, it can produce side effects such as:
Estrogen-related effects (water retention, gynecomastia) due to aromatization
Acne or oily skin
Mood swings or increased aggression
Suppression of natural testosterone production
Hair loss in genetically predisposed individuals
Elevated blood pressure or cholesterol with long-term or high-dose use
Injection site pain due to higher concentration
Side effects can be managed with proper cycle support (e.g., aromatase inhibitors) and post-cycle therapy (PCT).
Dosages & Protocol
Dosages for Men:
Beginner: 500mg (1ml) per week
Intermediate: 500–750mg (1–1.5ml) per week
Advanced: 750–1000mg (1.5–2ml) per week
Split the weekly dosage into two injections (e.g., Monday and Thursday) to maintain more stable hormone levels and minimize fluctuations
How to administer – reconstitution and how to inject
Testosterone Enanthate 300mg is an oil-based injectable solution and does not require reconstitution
Injection:
Use a 3ml syringe with a 23–25 gauge needle (1–1.5 inch)
Inject intramuscularly into the glute (upper outer quadrant), thigh (vastus lateralis), or deltoid
Clean the site with an alcohol swab, aspirate before injecting, and inject slowly
Massage the injection site afterward to help disperse the oil and reduce soreness
Storage
Store at room temperature, away from direct heat and sunlight
Keep the vial sealed when not in use
Half life & detectability
Half-Life: Approximately 7–10 days
Detection Time: Detectable in the system for up to 3 months or longer, depending on dosage and individual metabolism
For athletes subject to drug testing, it is important to consider these detection times and plan accordingly to avoid positive tests for banned substances.
