Mast P 100 is an injectable solution containing the powerful anabolic-androgenic steroid, Drostanolone Propionate, concentrated at $100 \text{ mg}$ per milliliter. This compound is a derivative of Dihydrotestosterone (DHT), revered by bodybuilders and athletes for its unique properties.

Key Features:
Potent Cutting Agent: Drostanolone Propionate is highly valued during cutting cycles. It is known for its ability to promote a hard, dry, and defined physique by helping to reduce subcutaneous water retention and enhancing muscle definition.
Aromatase Resistance: As a DHT derivative, Mast P 100 is non-aromatizable, meaning it does not convert to estrogen. This eliminates the risk of estrogenic side effects such as gynecomastia and excessive water retention.
Mild Androgenic/Anabolic Profile: It offers a favorable ratio of anabolic to androgenic activity, making it effective for improving lean muscle mass and strength while maintaining a relatively mild side effect profile compared to other compounds.
Short Half-Life: The propionate ester provides a relatively short half-life, leading to quick and effective blood plasma levels, requiring frequent injections.
Indications (Historical/Performance-Enhancing Context):
Historically, Drostanolone Propionate was used medically to treat breast cancer in women.In a performance-enhancing context, it is used by individuals seeking to:
Maximize muscle hardness and definition.
Improve overall physique appearance for competition.
Increase strength and athletic performance.
Mast P 100 (Masteron Propionate) is a fast-acting injectable anabolic steroid, widely used in cutting cycles and pre-contest preparation. Each ml contains 100mg of Drostanolone Propionate, a compound known for its hardening and anti-estrogenic properties.
Unlike bulking steroids, Mast P 100 shines in producing a dry, lean, and defined appearance. It is highly valued by athletes, physique competitors, and bodybuilders looking to enhance muscle detail while maintaining strength and endurance.
- Muscle Hardness: Creates a dense, dry, and ripped look.
- Anti-Estrogenic Effect: Helps reduce water retention and estrogen-related side effects.
- Cutting & Pre-Contest Use: Perfect for achieving a stage-ready physique.
- Fast-Acting: Propionate ester allows for quick results with frequent injections.
- Stack Friendly: Often combined with compounds like Winstrol, Trenbolone, or Testosterone for optimal results.
Note: Mast P 100 is most effective for individuals with already low body fat levels. It is not a bulking steroid, but a finishing compound to refine physique and improve vascularity.
Mast P 100 – Drostanolone Propionate 100 mg/mL Injectable Solution
Mast P 100 is an injectable anabolic compound with 100 mg/mL of drostanolone propionate, designed to support muscle density and definition rather than bulk.
In-depth: Composed of drostanolone propionate, a derivative of DHT (dihydrotestosterone), Mast P 100 functions by promoting protein synthesis, positive nitrogen balance, and minimal aromatisation (hence less water retention). It’s tailored for athletes or bodybuilders looking to refine and harden their physique rather than significantly increase mass.
Features & Specifications
- Active ingredient: Drostanolone Propionate.
- Concentration: 100 mg per mL, typically presented in a 10 mL vial.
- Ester: Propionate — meaning a relatively short half-life (approx. 1-2 days) and more frequent injections.
- Aromatisation: None — does not convert to estrogen, so minimal risk of water retention or gynecomastia from estrogen.
- Anti-estrogenic properties: Because of the DHT derivation, may reduce estrogen effects. (anabolicsteroids.co.za)
Benefits (What it can help you achieve)
- Enhanced muscle hardness and definition — ideal for cutting phases where you’re striving for that dry, carved appearance.
- Preservation of lean muscle under calorie-restricted or cutting conditions — helps maintain what you’ve built.
- Improved strength and power — may support training intensity and recovery when used correctly.
- Reduced water retention and more vascular look — thanks to its non-aromatising nature.
Usage Guidelines & Recommendations (with caution)
- Typical dosage ranges cited: ~300-700 mg per week for men (depending on experience and goals) in cutting/hardening cycles.
- Given the short half-life, some protocols suggest injections every other day or more frequent to maintain stable levels.
- Duration: Many users employ a cycle of 6-8 weeks during a cutting phase.
- Always consider post-cycle therapy (PCT) to restore natural hormone function after such compounds.
- Administer only if medically supervised and legally compliant. This product is not for casual or unsupervised use.
Safety, Risks & Considerations
- Androgenic side-effects: acne, oily skin, possible male-pattern hair loss in predisposed individuals.
- Natural testosterone suppression: Expect your own hormone levels may drop and require PCT.
- Joint discomfort: With minimal water retention, joints may feel different — especially under heavy load.
- Not suitable for women or individuals with prostate/breast cancer, or severe cardiovascular/liver issues.
- Legal and regulatory risks: Many countries classify anabolic steroids as controlled substances. In Cameroon and across Africa, importation and distribution may be tightly regulated or illegal. You need to verify local law.
- Ethical/anti-doping concerns: If you compete in sports, this compound may be banned.
Stock & Logistics Info
- Packaging: 10 mL vial at 100 mg/mL concentration (total 1000 mg).
- Storage: Keep in a cool, dry place; protect from light; do not freeze.
- Shipping: Must be handled discreetly and in compliance with import/export laws for pharmaceuticals/anabolics.
- Authenticity: Because this category of products is highly falsified, ensure batch verification, lab testing, and legitimate supply chain.
Who It’s For — Target Audience
- Fitness enthusiasts and bodybuilders who are in the cutting phase (leaning down) and want a refined look rather than sheer mass.
- Competitive athletes preparing for events or photo-shoots where muscle definition and density matter.
- Not for beginners who are chasing raw size; better for more experienced users who already have a good base.
- Not recommended for women in most cases or those who are not medically supervised.
Why Choose This Product
If you’re at the point where you’ve built your muscle base, you’re serious about definition, and you’re ready for the final push into that hard-looking physique, Mast P 100 offers a formula tailored specifically for that scenario. With its anti-estrogenic properties, low water retention, and reputation in cutting cycles, it’s not about bulk — it’s about refinement.
Important Legal & Ethical Disclaimer
Please remember: The sale, possession or use of anabolic steroids like drostanolone may be restricted or illegal in many countries (including possibly Cameroon). Before marketing, importing, or using this product, consult local regulatory authorities, confirm its classification and ensure full compliance with health and drug-control laws. Also, medical supervision is vital for safe use. This description is not medical advice.




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