Mastermix 100

Description

Mastermix 100 (also seen as Mastermix-100, Master Mix 100, or similar variations like Mastermix Premium/Select) is an injectable anabolic steroid product from Phar Labs (the same brand as the others you’ve asked about: Sustamix, Textocex, Boldetex, Trenmix). It’s a single-ester formulation of Drostanolone Propionate (commonly known as Masteron or Mast P) at a concentration of 100 mg per ml (or per 1 ml ampoule).

Typical packaging includes 10 ampoules of 1 ml each (total 1000 mg per box/set), aligning with Phar Labs’ common format for their injectable lines.

Key Details:

• Active Ingredient: Drostanolone Propionate – a DHT-derived (dihydrotestosterone) anabolic-androgenic steroid. It’s fast-acting due to the propionate ester.

• Half-life: Short, around 1–1.5 days (or up to ~2–3 days), so it requires frequent injections (often every other day or 3x/week) for stable blood levels. Effects kick in relatively quickly but don’t last as long without consistent dosing.

• Primary Medical/Intended Use: Historically, Masteron (drostanolone) was developed in the 1960s and used medically to treat advanced breast cancer in women (anti-estrogenic properties helped), but it’s no longer marketed for human use anywhere. It’s not approved for any current human therapeutic purpose.

• Common Off-Label/Performance Use: One of the most popular “finishing” or cutting steroids in bodybuilding and physique sports:

• Enhances muscle hardness, density, and definition (gives a “dry,” shredded, vascular look with minimal water retention).

• Anti-estrogenic effects (doesn’t aromatize to estrogen, can help control estrogen from other compounds in a stack).

• Mild strength gains without much mass increase.

• Boosts overall conditioning and aggression/motivation in the gym. It’s ideal for pre-competition phases, contest prep, or when leaning out while preserving muscle. Often stacked with testosterone (as a base), trenbolone, or other cutting agents for enhanced results. Not great for bulking due to lower anabolic potency.