What Users Say
Hemi Pharma Mass Mix 500 is widely regarded in bodybuilding circles as a powerful bulking compound designed for serious mass and strength gains. It combines four long-acting anabolic steroids—Testosterone Enanthate, Trenbolone Enanthate, Drostanolone Enanthate, and Nandrolone Decanoate—each dosed at 125 mg/mL for a total of 500 mg/mL per injection.
Users often praise the mix for its convenience and potency, allowing them to run a complete mass-building cycle with fewer injections and simpler planning. The product is frequently described as “hard-hitting”, with noticeable improvements in muscle size, strength, and fullness within weeks of starting.
Forum posts highlight how the inclusion of Drostanolone helps tighten the physique despite the bulking nature of the stack, while the presence of Nandrolone and Testosterone offers joint support and enhanced recovery. Trenbolone, as expected, delivers significant changes in muscle density and aggression in training.
Some reports mention post-injection pain due to the oil’s concentration, and a few experienced users recommend splitting the dose across multiple sites. Overall, Mass Mix 500 is seen as a premium blend for intermediate to advanced users who want maximum results from a minimal injection schedule.
The brand, Hemi Pharma, has a solid reputation among underground labs, and this product is often considered one of their best offerings for offseason or strength-focused cycles.
Certainly! Here’s a detailed breakdown of the factual information about Hemi Pharma Mass Mix 500, covering dosage, stacking, cycle length, side effects, and PCT considerations.
Product Overview
Mass Mix 500 is an injectable steroid blend produced by Hemi Pharma. It contains the following per mL:
- Testosterone Enanthate – 125 mg
- Trenbolone Enanthate – 125 mg
- Drostanolone Enanthate (Masteron) – 125 mg
- Nandrolone Decanoate (Deca) – 125 mg
This creates a total 500 mg/mL dose that delivers both anabolic mass-building and physique-hardening effects in one shot.
Recommended Dosage
- Beginner: 0.5 mL (250 mg) every 3.5 days (e.g., Monday & Thursday)
- Intermediate: 1 mL (500 mg) twice weekly (totaling 1,000 mg/week)
- Advanced: 1.5 mL (750 mg) twice weekly if well-tolerated and stacked
Note: Due to its high concentration, some users prefer to split injections across two sites to reduce post-injection pain (PIP).
Cycle Length
- Typical cycle duration: 10 to 14 weeks
- Shorter cycles (8 weeks) may be used if side effects are a concern, particularly due to Trenbolone’s suppressive nature.
Stacking Suggestions
Since Mass Mix 500 already contains four powerful compounds, additional stacking is not typically necessary. However, experienced users might choose to add:
- Oral Kickstarter: Dianabol (30–40 mg/day for 4 weeks) at the beginning
- Growth Hormone or IGF-1 LR3 for enhanced synergy in longer cycles
- Cabergoline (0.25 mg twice weekly) if prone to prolactin-related side effects from Nandrolone or Trenbolone
Avoid stacking with other heavy androgens or progestins unless cycle planning is done carefully.
Expected Benefits
- Rapid muscle mass and strength gains
- Improved muscle density and definition
- Recovery boost and joint support due to Nandrolone
- Hardening effects from Drostanolone
- Enhanced aggression and focus during training from Trenbolone
Potential Side Effects
- Estrogenic: Water retention, gynecomastia (from Testosterone & Nandrolone)
- Progestogenic: Sexual dysfunction, mood swings (mainly from Nandrolone)
- Androgenic: Acne, hair thinning, aggression (Trenbolone & DHT-based compounds)
- Suppression: All four components suppress natural testosterone production
- PIP: Post-injection pain due to the high concentration per mL
Anti-estrogen support may be required:
- Aromatase Inhibitors (AIs): Arimidex (0.5 mg every other day) or Aromasin (12.5 mg EOD)
Post Cycle Therapy (PCT)
A solid PCT is essential due to the high suppression caused by this blend, particularly from Trenbolone and Nandrolone.
Typical PCT protocol (starting 2–3 weeks after the last injection):
- Clomid: 50 mg/day for 4 weeks
- Nolvadex: 20–40 mg/day for 4 weeks (can be used with or instead of Clomid)
- HCG (optional): 500 IU 2–3×/week during or after cycle for testicular support
Who Should Use It
- Intermediate to advanced users
- Athletes in a bulking or lean mass recomposition phase
- Individuals with prior experience managing Trenbolone and multi-compound cycles
Not Recommended For
- First-time steroid users
- Those sensitive to Trenbolone or prone to estrogenic/progestogenic side effects
- Individuals who cannot tolerate frequent or high-volume injections
FAQ: Hemi Pharma Mass Mix 500
What is Hemi Pharma Mass Mix 500?
Mass Mix 500 is a high-concentration injectable steroid blend containing 125 mg each of Testosterone Enanthate, Trenbolone Enanthate, Drostanolone Enanthate, and Nandrolone Decanoate per mL.
What is it used for?
It is primarily used in bulking or lean mass phases to promote rapid muscle growth, strength increases, improved recovery, and enhanced physical conditioning.
How is it typically dosed?
Most users inject 1 mL twice per week (totaling 1,000 mg/week). Beginners may start with 0.5 mL every 3.5 days, while advanced users may go up to 1.5 mL per shot.
How long should a cycle last?
Typical cycles last 10 to 14 weeks. An 8-week cycle may be used for shorter-term results or by those cautious about side effects.
Can it be stacked with other compounds?
It already contains four powerful steroids, so stacking is usually unnecessary. However, some users add orals like Dianabol or growth hormones for added synergy.
What are the expected benefits?
Users report rapid lean mass gains, strength improvement, enhanced recovery, reduced joint pain, and better muscular definition thanks to the combination of compounds.
What are the common side effects?
Potential side effects include testosterone suppression, water retention, acne, mood swings, night sweats, and increased blood pressure. Progestin-related issues from Deca and Tren may also occur.
Does it cause liver toxicity?
No. Mass Mix 500 is injectable and not hepatotoxic. However, monitoring overall health with blood work is still recommended.
How should post-cycle therapy (PCT) be handled?
A standard PCT with Clomid (50 mg/day) or Nolvadex (20–40 mg/day) for 4 weeks is recommended, starting 2–3 weeks after the last injection.
Is it suitable for beginners?
No. This is a potent blend intended for intermediate to advanced users familiar with managing side effects, suppression, and injectable cycles.
What support supplements are recommended?
Aromatase inhibitors like Arimidex or Aromasin may be needed. Cabergoline is sometimes used for prolactin control. Liver and cardiovascular support is also wise during any cycle.
How often should it be injected?
Due to the long esters, injecting twice per week (e.g. Monday and Thursday) is sufficient to maintain stable hormone levels.
Is post-injection pain (PIP) common?
Yes, due to the high 500 mg/mL concentration. Users often split doses across injection sites or mix with lower-dosed oils to reduce discomfort.
Where is it made?
Hemi Pharma is an underground lab known for producing potent, high-quality anabolic steroid blends, though it’s not a licensed pharmaceutical company.
Is it legal to use?
In most countries, anabolic steroids like Mass Mix 500 are controlled substances. Possession or use without a prescription may be illegal. Always check local laws.
