LeanMass 400
LeanMass 400 is a high-strength, multi-phase injectable blend formulated to deliver a balanced and sustained release profile. Featuring a combination of short, medium, and long-acting components, this advanced formula is designed to provide a smooth, stable, and consistent experience over time.
With its carefully structured composition, LeanMass 400 supports a full, dense, and refined look, making it a versatile option for those aiming to maintain a balance between size, conditioning, and overall performance.
Manufactured under controlled laboratory conditions, each vial is produced with a focus on clarity, stability, and batch-to-batch consistency.
Lean Mass 400 (often branded as Mass 400) is a high-potency, multi-compound anabolic steroid blend used in bodybuilding and strength sports for intensive bulking cycles. [1, 2]
Key Characteristics
- Composition: It is an injectable oil-based blend that typically combines long-acting testosterone and/or nandrolone/boldenone esters (such as Testosterone Enanthate, Testosterone Cypionate, Boldenone Undecylenate, and Nandrolone Decanoate). [1]
- Intended Purpose: Formulated for experienced athletes to maximize muscle mass, strength, nitrogen retention, red blood cell production, and workout recovery. [1]
- Administration: It is administered via intramuscular injection (commonly into the glutes or thighs), with typical male dosages ranging between 400 mg and 800 mg per week over an 8- to 12-week cycle. [1]
Safety and Health Risks
- Side Effects: Like other exogenous androgens, use can cause hormonal suppression, cardiovascular strain (elevated blood pressure, altered cholesterol profiles), liver stress, acne, hair loss, and mood or behavioral changes.
- Regulatory & Legal Status: In many jurisdictions, high-potency anabolic steroid blends require a medical prescription or are strictly controlled/illegal for non-medical or athletic enhancement use.
(Note: “Lean Mass 400” is distinct from the biological/physiological term lean body mass, which refers to your total body weight minus all body fat). [1]
Are you looking for information on potential side effects, legal regulations, or how to naturally build lean body mass through diet and training?
What is lean mass in your body?
Lean body mass (LBM) is the total weight of your body minus all of your body fat mass.
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What Lean Body Mass Includes
LBM is often called fat-free mass and represents everything that is not storage fat, including:
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- Muscles (skeletal, cardiac, and smooth muscle tissue)
- Bones and bone density
- Organs (heart, liver, kidneys, etc.)
- Body water (fluid inside and outside of cells)
- Skin
and connective tissue
- Essential fat (the minimal amount of fat required for normal physiological and cellular function, which is about 3% of body weight in men and 10–12% in women)
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How to Calculate It
You can calculate LBM with a basic formula:
For clinical or personal estimation, formulas such as the Boer, James, Hume, or Peters formulas use weight, height, and biological sex to estimate LBM.
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Lean Body Mass vs. Muscle Mass
Lean body mass and muscle mass are not the same thing:
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- Muscle mass only refers to the weight of your muscle tissue.
- Lean body mass includes muscle plus your bones, organs, water, and skin. For example, if you drink a large glass of water, your total LBM increases temporarily even though you haven’t built any new muscle.
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Why It Matters
- Metabolism: Lean tissue drives the majority of your resting energy expenditure (how many calories you burn at rest).
- Medical Dosing: Certain medications and water-soluble anesthetic agents are dosed based on a patient’s lean body weight rather than total weight.
- Health Tracking: Tracking LBM helps you see whether weight changes on a scale come from losing/gaining fat or water and muscle.
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You can read more about how body composition is evaluated on Wikipedia or check tools like the Lean Body Mass Calculator
⭐ Key Features
- ✔️ High-potency 400 mg/ml formula
- ✔️ Multi-phase release profile (short to long acting)
- ✔️ Balanced structure for size & conditioning
- ✔️ Smooth and stable oil base
- ✔️ High-purity raw materials
- ✔️ Controlled lab production
🧪 Product Details
- Name: LeanMass 400
- Format: Injectable oil solution
- Volume: 10ml vial
- Total Concentration: 400 mg/ml
- Blend Structure: Multi-component system
- Appearance: Clear to light golden solution
🧬 Blend Composition
- Short-acting component – 30 mg/ml
- Fast-medium component – 30 mg/ml
- Medium component – 60 mg/ml
- Long-acting component – 120 mg/ml
- Extended-release anabolic base – 160 mg/ml
(Structured for a layered release curve and stable profile)
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