Premium Brand STROMUSC Stanozolol Water 100mg/ml For Bodybuilding CAS:10418-03-8

   What It Is: Chemical Identity and Origin

    Stanozolol is a synthetic anabolic steroid derived from dihydrotestosterone (DHT), first developed by Winthrop Laboratories in 1962. Its chemical structure is defined by a 17α-alkylated modification and a pyrazole ring fused to the A-ring, which confers resistance to hepatic first-pass metabolism and allows both oral and injectable administration. The molecular formula is C₂₁H₃₂N₂O, with a molecular weight of 328.49 g/mol. Unlike most injectable AAS, Stanozolol is not esterified; it is suspended as micronized crystals in a water-based vehicle, a formulation that fundamentally shapes its pharmacokinetic behavior.

    The 100mg/ml aqueous suspension represents a high-concentration variant of the traditional 50mg/ml Winstrol Depot. This concentration is designed for bodybuilders seeking to minimize injection volume while maintaining a potent anabolic signal. Authentic preparations exhibit a distinctive milky, white appearance and will separate upon standing, with micronized crystals settling at the bottom of the vial-a visual marker of authenticity.

    The water-based nature of this formulation is its defining pharmacological feature. Because the drug is not esterified, it does not possess a classical elimination half-life in the same manner as oil-based depot steroids. Instead, the microcrystals dissolve slowly from the injection site, creating a release profile that is both rapid in onset and relatively short in duration. The active life of injectable Stanozolol is approximately 24 hours, though the terminal elimination tail can extend considerably longer. Oral administration yields a half-life of roughly 8–9 hours, and both routes share a detection window that can reach up to two months in urine testing.

    Stanozolol is a DHT derivative that does not aromatize into estrogen. This means it produces no estrogenic side effects such as gynecomastia or water retention. It is also a potent suppressor of sex hormone-binding globulin (SHBG), typically reducing serum SHBG by 30–50%, which increases the free fraction of co-administered compounds and amplifies their anabolic impact. The anabolic-to-androgenic ratio is approximately 320:30, making it a strongly anabolic and only mildly androgenic compound.

    Stanozolol's reputation in bodybuilding is built almost entirely on its capacity to enhance muscle hardness, vascularity, and definition rather than raw mass. It is not a bulking drug; it is a finishing agent. Bodybuilders typically deploy it during the final four to six weeks of a cutting phase, when the goal is to strip away the last vestiges of subcutaneous water and reveal a dry, dense, and sharply defined physique. The drug's inability to aromatize means it will not blur conditioning with estrogenic water retention, and its SHBG-suppressing action makes it an effective synergist when stacked with compounds such as testosterone propionate or masteron.

    The aqueous suspension form is particularly favored in contest preparation because its rapid absorption allows for precise timing of peak effects relative to a competition date. Some users also drink the injectable suspension orally, a practice that bypasses the injection site and theoretically increases hepatic IGF-1 output, though this route is not without its own risks.

    The primary benefits attributed to Stanozolol in bodybuilding contexts include increased strength without concomitant weight gain, enhanced vascularity, and improved muscle hardness. Users frequently report a "drying out" effect, where the skin appears tighter over the musculature and the separation between muscle groups becomes more pronounced. These aesthetic outcomes are most visible in individuals who already possess low body fat, as the drug does not actively burn adipose tissue; it merely helps preserve lean mass while the athlete creates a caloric deficit.

    Additional reported benefits include a noticeable increase in training pump and a subjective sense of aggression and focus in the gym. Because Stanozolol does not convert to estrogen, there is no risk of estrogenic fat gain or gyno flare-ups from the compound itself. These features collectively make it a staple in the arsenals of physique athletes who prioritize conditioning over size.

    Dosage selection for the 100mg/ml aqueous suspension requires careful consideration of the compound's short active life and the concentration of the preparation. The commonly cited range for injectable Stanozolol in men is 50mg every other day, with some experienced users employing 50mg daily or up to 100mg every other day. The 100mg/ml concentration makes an every-other-day schedule practical: a single 0.5ml draw provides the standard 50mg dose, while a 1ml draw delivers 100mg. For daily administration, a 0.5ml injection of the 100mg/ml suspension provides the 50mg daily dose that many consider the upper threshold for responsible use.

    Injection technique is critical with this formulation. The micronized crystals can clog smaller gauge needles, so a 21–23 gauge needle is recommended for drawing, with a 25 gauge for injection. The suspension should be shaken vigorously before each draw to ensure even resuspension of the crystals. Post-injection pain is common and can be significant, as the water vehicle dissipates rapidly and leaves crystalline deposits that irritate muscle tissue. Rotating injection sites and avoiding sensitive areas such as the deltoids can mitigate this discomfort.

    Stanozolol cycles are characteristically short. The standard duration is four to six weeks, with six weeks representing the outer limit for most users. Extending beyond eight weeks is inadvisable due to the compound's impact on lipid profiles, joint health, and hepatic stress-even the injectable form, while bypassing the first-pass liver metabolism, still carries systemic metabolic consequences.

    A typical cutting cycle might look as follows: weeks 1–6, Testosterone Propionate at 100mg every other day as a base, combined with Stanozolol suspension at 50mg every other day during the final four weeks (weeks 3–6). This stacking arrangement leverages Stanozolol's SHBG suppression to increase the free testosterone fraction while the propionate maintains anabolic drive and mitigates the joint dryness that Stanozolol can cause. Testosterone is, in fact, considered mandatory alongside Stanozolol; running the compound as a standalone is widely regarded as both ineffective and unnecessarily suppressive.

    The pharmacokinetics of aqueous Stanozolol are distinct from oil-based injectables. The active life is approximately 24 hours for the injectable suspension, compared to 8–9 hours for the oral form. This short active window necessitates frequent administration-at least every other day, with daily injections providing more stable serum levels. The terminal elimination phase is considerably longer, and metabolites of stanozolol can remain detectable in urine for up to two months following the last injection. In competitive anti-doping contexts, the detection window for stanozolol metabolites has been reported to extend even further, with some analytical methods capable of identifying trace metabolites for 8–12 months after administration. Bodybuilders subject to testing must account for this prolonged detection window.

    Despite its reputation as a "mild" steroid, Stanozolol is profoundly suppressive to the hypothalamic-pituitary-testicular axis (HPTA). Even short cycles can shut down natural testosterone production, and the SHBG suppression further complicates hormonal recovery. A structured PCT is therefore non-negotiable for any bodybuilder using Stanozolol.

    The standard PCT protocol involves selective estrogen receptor modulators (SERMs), typically a combination of Nolvadex (tamoxifen) and Clomid (clomiphene). A representative protocol is Nolvadex at 40mg daily for the first two weeks, followed by 20mg daily for two additional weeks, paired with Clomid at 50mg daily for the first two weeks and 25mg daily for the final two weeks. PCT should commence after the Stanozolol and any accompanying testosterone ester have cleared the system. For a propionate base, this means waiting approximately three to four days after the last injection; for longer esters such as cypionate or enanthate, a wait of 10–14 days is appropriate.

    Blood work is strongly recommended both before and after PCT to assess recovery of luteinizing hormone (LH), follicle-stimulating hormone (FSH), and total testosterone. Recovery can be delayed in individuals who have run multiple cycles or who are older, and in such cases, extended PCT protocols or medical supervision may be warranted.

Brand	STROMUSC
Trade names	Winstrol, Stromba, Androstanazol; Androstanazole; Stanazol; WIN-14833; NSC-43193; NSC-233046;
CAS	10418-03-8
Molar mass	328.500
Formula	C21H32N2O
Purity	Above 98%
Apprarance	100mg/ml

 

 

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    Stanozolol in its 100mg/ml aqueous suspension form is a specialized tool for the physique athlete who prioritizes conditioning, hardness, and vascularity over sheer mass. Its non-aromatizing nature, potent SHBG suppression, and rapid clearance from the injection site make it uniquely suited to the final weeks of a cutting phase. However, its short active life demands frequent administration, its injection site reactions can be severe, and its suppressive effects on natural testosterone production require a disciplined PCT.

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