Kalpa Pharma Masteroxyl Drostanolone Propionate and Enanthate

Masteroxyl - Drostanolone Propionate and Enanthate Injection

Masteroxyl delivers drostanolone in two injectable forms in 10 ml multi-dose vials: Propionate 100 for a faster release and Enanthate 200 for a slower one. Drostanolone is a synthetic anabolic steroid used in training for a hard, lean look, because it carries little water and is not converted to estradiol. Buy drostanolone as the short ester, Propionate 100, or the long ester, Enanthate 200, depending on how often an injection fits the schedule.

• Two formulations - Propionate 100 and Enanthate 200
• 100 mg/ml and 200 mg/ml - 10 ml multi-dose vials
• GMP-manufactured and HPLC-verified per batch, COA on file
• U.S. domestic and international shipping

Variant Comparison

Both vials hold drostanolone; the ester sets how quickly the hormone is released and how often the vial is opened. The table compares concentration, release speed and a typical schedule.

The difference is the ester. Masteroxyl Propionate 100 clears faster, so the level needs more frequent injections, while Masteroxyl Enanthate 200 holds a steady level from a weekly shot and suits a longer block. Drostanolone is not a mass compound on its own, so it is normally stacked with a testosterone base such as Testoxyl, and an injectable that adds size such as Boldaxyl 300 keeps the stack lean.

How Drostanolone Works

Drostanolone is a 2-methyl derivative of dihydrotestosterone, a steroid that binds the androgen receptor strongly and lacks the double bond the body needs to convert testosterone into estradiol. It drives protein synthesis and nitrogen retention, the mechanism behind gains in lean mass and strength, and because it does not convert to estradiol it adds much less water than an aromatising compound. The injections suppress the body's own testosterone production, so the level is managed with a blood panel, an aromatase inhibitor if needed, and a recovery plan.

Dosage & Administration

Drostanolone is injected into the muscle. Propionate 100 is commonly run at 100-150 mg every other day and Enanthate 200 at 200-400 mg once or twice a week, for eight to twelve weeks, and it is normally combined with a testosterone base because it suppresses natural production on its own. Rotate sites and keep the technique clean. An aromatase inhibitor such as Arimixyl is used only if estrogen side effects appear, and recovery starts after the last shot with Nolvadex 20 mg daily for four weeks, or Clomid as the alternative. Follow your prescribing physician's instructions.

This product may require a prescription in your country. Information provided is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before use.

Consult a healthcare professional before any cycle. When a stack includes compounds that suppress natural testosterone, PCT is required. Dosages reflect common community protocols.