Stanoplex XT Labs (Water 100 mg/mL) Top USA

Stanoplex XT Labs 100mg/10ml – Stanozolol for Cutting & Bodybuilding

Stanoplex XT Labs is a branded injectable anabolic steroid product containing stanozolol (the drug commonly known as Winstrol). It is a water-based suspension of stanozolol at 100 mg/mL in a 10 mL vial, produced by XT Labs. Stanozolol is one of the most popular anabolic steroids of all time, widely recognized even outside of steroid circles. Bodybuilders and athletes prize Stanoplex (stanozolol) for its ability to enhance muscle definition, strength, and performance without excessive weight gain or water retention. However, it must be emphasized that this compound is a powerful hormone with significant medical and legal considerations, and it carries serious health risks if misused. (Usada)

What is Stanoplex XT Labs (Stanozolol) Used For?

Stanoplex XT Labs is essentially an injectable Winstrol (stanozolol) formulation, intended primarily for cutting cycles in bodybuilding. It delivers stanozolol suspended in water (unlike many oil-based steroids), which means it has no ester attached and a relatively short half-life of around 9 hours. Each Stanoplex vial provides a potent dose of stanozolol, ensuring consistent and precise dosing for users. Stanozolol itself is a synthetic derivative of dihydrotestosterone (DHT) and exhibits a high anabolic effect with relatively reduced androgenic propertieslegionathletics.com. In practical terms, this means stanozolol can promote muscle growth, strength, and fat loss with less risk of estrogenic side effects (such as water bloat or gynecomastia) than testosterone or other aromatizing steroids.

Originally developed for medical applications, stanozolol has legitimate uses in treating conditions like hereditary angioedema and was even prescribed in the past for osteoporosis, burn recovery, and growth promotion in children (albeit at much lower doses than used in bodybuilding)usada.org. Today, Stanoplex and other stanozolol products are used almost exclusively for physique and performance enhancement. Athletes and bodybuilders utilize Stanoplex to increase muscle definition, hardness, and vascularity while dieting, as it does not cause the fluid retention that many other steroids do. The muscles appear drier and more toned during stanozolol use, which is ideal for contest preparation or “cutting” phases. In addition, stanozolol can impart a notable strength and speed boost without adding much body weight, a benefit that historically appealed to track athletes and fighters who compete in weight classes.

Key Point: Stanoplex XT Labs provides stanozolol 100 mg/mL in an injectable form, primarily used by bodybuilders for cutting cycles to enhance lean muscle definition and strength. It is essentially the same active ingredient as Winstrol Depot, delivering strong anabolic effects with minimal water retention.

A Brief History of Stanozolol (Winstrol)

Stanozolol has a notable history in both medicine and sports. It was first synthesized in the late 1950s in the UK and brought to market in the United States in 1962 by Winthrop Laboratories under the brand name Winstrol (and by Bayer in Europe under the name Stromba). Chemically, stanozolol is a modified DHT molecule – chemists altered DHT to create a steroid with enhanced anabolic (muscle-building) properties and fewer masculinizing side effects, which is how Winstrol was born (legionathletics). In the 1960s, Winstrol gained FDA approval for limited medical uses (such as treating osteoporosis, muscle-wasting diseases, and growth delay in children), though these indications were later narrowed or withdrawn as concerns about efficacy and safety grewen.wikipedia.org. By the 1980s, stanozolol’s medical use had become quite restricted; production in the U.S. ceased by 2002 and no U.S. pharmaceutical companies have manufactured it since. (Today, any legally prescribed stanozolol would be via specialized compounding pharmacies, and much of the supply comes from underground labs like XT Labs.)

In the realm of sports, stanozolol left an indelible mark. It was added to the list of banned substances by the International Olympic Committee in 1974 and quickly became one of the most abused anabolic steroids in doping (usada.org.) The steroid gained infamy during the 1988 Seoul Olympics when Canadian sprinter Ben Johnson tested positive for stanozolol and was stripped of his gold medal. This high-profile scandal highlighted stanozolol’s potent performance-enhancing effects – it can dramatically increase strength and power – as well as the ethical and health issues surrounding steroid abuse. To this day, stanozolol remains a prohibited substance in sports, and improved testing methods (including long-term metabolite detection) have extended its detectability in athletes’ bodies for weeks after use.

How Stanoplex XT Labs (Stanozolol) Works in the Body

Stanozolol’s effects can be understood by examining its pharmacology. As an anabolic-androgenic steroid (AAS), it binds to androgen receptors in muscle and bone tissues, stimulating protein synthesis and nitrogen retention. The result is an increase in muscle fiber growth and strength. Notably, stanozolol cannot convert to estrogen because it is derived from DHT and lacks the structural components needed for aromatization. This means Stanoplex does not cause estrogen-related side effects such as water retention, bloating, or gynecomastia (male breast development). In fact, stanozolol actively promotes a dry, hard look to the musculature – it even has a mild diuretic-like effect in that it prevents water from accumulating in the body for long. This property makes it extremely valued during cutting phases when a lean and sculpted appearance is desired.

Another important mechanism is stanozolol’s impact on Sex-Hormone-Binding Globulin (SHBG). SHBG is a protein that binds to sex hormones like testosterone, rendering them inactive while bound. Stanozolol has been shown to significantly reduce SHBG levels, thereby increasing the amount of free (active) testosterone and other steroids in the bloodstream. By lowering SHBG, Stanoplex can potentiate the effects of other steroids used concurrently, making it a popular addition to many steroid stacks (more on this in the next section). As one source notes, “the use of Winstrol in a cycle potentiates the effect of all the other [steroids] being used”.

From a performance standpoint, stanozolol enhances red blood cell (RBC) production and hemoglobin levels. Higher RBC count improves oxygen delivery to muscles, which can boost muscular endurance and recovery. Users often report the ability to maintain or even increase strength while on a calorie-restricted diet – stanozolol helps prevent the loss of strength that typically accompanies hard cutting diets. It can also impart notable increases in speed and power, which is why it has been favored by sprinters and power athletes in the past. Unlike many bulking steroids, Stanoplex will not add a lot of overall mass, but the gains tend to be lean, quality muscle tissue with enhanced definition.

Pharmacokinetics: Because Stanoplex is a water-based suspension of free stanozolol, it acts relatively quickly. The active half-life is on the order of 8–9 hours. Athletes typically administer stanozolol injections daily or every other day to maintain stable blood levels. The frequent injection schedule, combined with the microcrystalline suspension, can make injections painful – Winstrol Depot (stanozolol) is notorious for causing soreness and inflammation at the injection site due to the crystalline steroid particlessteelgear.net. This is a normal but unpleasant aspect of how the drug is formulated. Despite the short half-life, traces of stanozolol metabolites remain detectable for a long time: up to ~3 weeks after last use of oral stanozolol, and up to ~9 weeks after last injection in urine tests. This prolonged detectability is important for tested athletes to consider.

In summary, Stanoplex works by boosting protein synthesis, increasing free testosterone levels (via SHBG reduction), and improving red blood cell count, all without the burden of estrogenic side effects. The outcome is enhanced muscle hardness, preserved lean mass, and improved athletic performance, especially when cutting.

Stanoplex XT Labs in Bodybuilding – Uses and Benefits

Stanoplex XT Labs (Stanozolol) plays a clear role in bodybuilding: it is primarily a cutting and contest-prep steroid. Athletes use it to achieve a lean, hard, and vascular physique because it does not cause water retention. Muscles appear dry and detailed, making it a top choice in the final 6–8 weeks before competitions or photoshoots.

Beyond aesthetics, Stanoplex also delivers performance benefits. It helps athletes maintain or increase strength and endurance without adding body weight. This makes it popular among bodybuilders in a calorie deficit and athletes in weight-class sports who need more power without bulk. Its anti-catabolic effect protects lean muscle during dieting, preventing the strength loss that usually comes with fat reduction.

Unlike mass-building steroids, Stanoplex is not ideal for bulking. Weight gains are modest and lean. Some bodybuilders add a low dose at the end of a bulking cycle to reduce water retention and harden their look before transitioning to cutting.

Key Benefits of Stanoplex XT Labs

• Cutting/Definition: Creates a dry, hard, and vascular look.

• Strength Maintenance: Preserves strength during calorie restriction.

• Lean Muscle Gain: Supports modest, quality muscle increases.

• Stacking Synergy: Lowers SHBG and enhances the effect of other steroids in a cycle.

Interestingly, research has also explored the medical use of stanozolol beyond sports performance. A clinical study in patients with aplastic anemia found that stanozolol, when combined with Cyclosporine A(1), produced a significantly higher response rate, faster onset of action, and better quality of life compared to stanozolol alone. These results suggest that the compound has real therapeutic value in supporting red blood cell production and bone marrow recovery. For bodybuilders and athletes, this highlights another dimension of stanozolol’s benefits: its ability to promote blood health and oxygen delivery, which are crucial not only in clinical medicine but also for strength, endurance, and recovery in training.

Common Cycles, Combinations, and Stacks with Stanoplex XT Labs

Stanoplex XT Labs (stanozolol, water-based 100 mg/mL) is most effective in cutting/contest-prep phases when stacked to drive muscle hardness, definition, and performance with minimal water retention. Below is SEO-optimized, medically formal guidance that preserves the commonly reported dosages you provided.

Why Stanoplex XT Labs Is Rarely Used Solo

As a DHT-derived anabolic, stanozolol (Winstrol) often serves as a synergy enhancer. By reducing SHBG, it can raise the fraction of active androgens in a stack, supporting lean mass retention, strength, and a drier look.

Testosterone Base with Stanoplex XT Labs (Why It Matters)

Stanozolol suppresses endogenous testosterone; a testosterone base helps maintain well-being, libido, and training output, and it synergizes gains.
Cutting example: Testosterone Propionate 300–400 mg/week + Stanoplex 50 mg every other day (EOD). Testosterone provides the androgenic foundation; stanozolol adds hardness/definition. Because some testosterone esters aromatize, plan estrogen management (AI/SERM) to control bloat or gynecomastia when needed.

Cutting Stacks for a Dry, Hard Look

• Stanoplex + Trenbolone (advanced)

  Powerful recomposition and stage-ready hardness; requires vigilant risk management.
  Commonly reported doses: Stanoplex 50 mg EOD (or 50 mg daily in short peak phases, 2–4 weeks); Trenbolone Acetate 50–100 mg EOD (≈ 300–400 mg/week). Some advanced users run Tren E 200–400 mg/week, layering Stanoplex for the final 6–8 weeks. Typical Stanoplex duration: 6–8 weeks.

  Stanoplex + Masteron

  DHT/DHT pairing for density, dryness, and detail (neither aromatizes).
  Commonly reported doses: Stanoplex 50 mg EOD or 50 mg daily; Masteron Propionate 100 mg EOD (≈ 300–400 mg/week) or Masteron Enanthate 300–400 mg/week. Typical use: Stanoplex 6–8 weeks; Mast P 6–10 weeks (or Mast E 8–12 weeks), with Stanoplex layered in the last 6–8 weeks to harden.

  Stanoplex + Boldenone or Primobolan

  Extended cutting support with relatively balanced side-effect profiles.
  Commonly reported doses: Stanoplex 50 mg EOD or 50 mg daily for the last 6–8 weeks; Boldenone Undecylenate 300–600 mg/week for 12–14 weeks or Primobolan Enanthate 300–600 mg/week for 10–12 weeks. (Long-ester EQ/Primo cycles are typically longer; Stanoplex is added at the tail end to “dry” and tighten.)

Stanoplex XT Labs + Anavar (Short “Finisher”)

Some athletes employ stanozolol + oxandrolone for 4–6 weeks to enhance strength and hardness before a target date. Caution: both are 17-α-alkylated; running two hepatotoxic orals elevates liver stress. Many limit exposure to one oral at a time and reinforce liver support.

Typical Dosages & Cycle Length (As Commonly Reported)

• Injectable (men): 50 mg EOD or 50 mg daily (≈ 200–350 mg/week). Protocols often cite 50–100 mg EOD as effective.

• Women (if they choose to use): 5–10 mg/day oral or ≈ 25 mg injected twice per week to minimize virilization.

• Typical duration: 6–8 weeks. Extending beyond 8 weeks increases hepatic and lipid strain; some advanced users push 10–12 weeks (not the norm; risk rises notably).

• Liver support: commonly TUDCA or NAC during the cycle.

Synergy via SHBG Reduction (How Stanoplex Enhances Stacks)

Stanozolol can lower SHBG, increasing free androgens and amplifying a cycle. Example: adding 25 mg/day of Winstrol to a testosterone-based plan can increase free testosterone and exceed results of testosterone alone.

Post-Cycle Therapy (PCT) After Stanoplex-Inclusive Cycles

Following a stanozolol/testosterone cycle, plan PCT to facilitate recovery of the HPT axis—commonly Clomiphene (Clomid) and/or Tamoxifen (Nolvadex). Specifics depend on what was stacked and for how long.

Example Cutting Cycle (For Illustration Only — Not an Endorsement)

8 weeks:

• Testosterone Propionate 100 mg EOD

• Stanoplex (Stanozolol) 50 mg EOD

• Masteron Propionate 100 mg EOD

• liver support and AI as needed. Aim: preserve lean mass, add hardness, and reveal definition in a calorie deficit. Begin PCT immediately after cessation.

Important: Risk–Benefit Balance

Multi-compound stacks increase systemic burden (estrogenic where applicable, androgenic, hepatic, cardiovascular). Experienced coaches emphasize “more isn’t always better”—optimize synergy and minimize exposure.

Side Effects and Health Risks of Stanoplex XT Labs (Stanozolol)

Using Stanoplex XT Labs or any stanozolol product comes with serious health risks. Although often called a “milder” steroid in terms of androgenic or estrogenic impact, stanozolol places stress on multiple body systems. Below, side effects are organized by category for SEO clarity and readability.

Hepatotoxicity (Liver Damage)

Stanozolol is 17α-alkylated, which allows it to survive oral ingestion and still impacts the injectable form. This modification increases liver strain and elevates enzymes.

• Risks: jaundice, peliosis hepatis, hepatic tumors, and in rare cases, fatal liver failure.

• Recommendations: avoid alcohol, limit cycle length, use liver support (e.g., TUDCA, NAC), and monitor liver function with blood tests.

Cardiovascular Strain and Cholesterol Impact

Winstrol is notorious for harming cardiovascular health.

• Effects: lowered HDL (“good” cholesterol), elevated LDL (“bad” cholesterol), increased blood pressure, and greater risk of atherosclerosis, heart attack, or stroke.

• Evidence: even 6 mg/day for 6 weeks reduced HDL by 33% and raised LDL by 29%.

• Recommendations: monitor blood lipids, diet rich in omega-3s, add cardiovascular exercise, and consider supplements (fish oil).

Cardiac Hypertrophy and Oxidative Stress (Preclinical Evidence)

A 2024 preclinical study showed that eight weeks of stanozolol exposure—alone or combined with cannabis(2)—caused cardiac hypertrophy and oxidative stress in male rats, even with structured aerobic swimming. Findings included increased relative heart weight, higher fibrotic markers (collagen type III, VEGF-A), elevated oxidative-damage biomarkers (MDA, 8-OHdG), and reduced glutathione (GSH). The stanozolol + cannabis group exhibited the most severe remodeling, and exercise did not mitigate these effects. For users evaluating Stanoplex (stanozolol), this underscores a credible cardiovascular toxicity risk, particularly with polysubstance use.

Hormonal Imbalances and Endocrine Suppression

As an exogenous anabolic, stanozolol suppresses testosterone production in men.

• Consequences: testicular atrophy, reduced sperm count, low libido, prolonged hypogonadism without proper PCT.

• For women: risk of virilization—deep voice, menstrual disruption, clitoral enlargement, acne, and hair growth. Some of these changes may be irreversible.

• Recommendation: men should plan structured PCT, women should use extreme caution and very low doses if they use it at all.

Androgenic Side Effects

Although less androgenic than testosterone, Stanoplex can still trigger:

• Acne, oily skin, male-pattern baldness (if predisposed).

• The DHT-derived structure means hair follicle sensitivity is possible.

• Severity varies, but androgenic risks remain present.

Joint Pain and Connective Tissue Effects

Winstrol is known for causing joint dryness and stiffness.

• Users often report achy joints during cycles.

• Possible mechanism: reduced collagen synthesis and altered tendon structure.

• Recommendation: hydration, joint-support supplements, and avoiding extreme lifting when joints feel “dry.”

Psychological and Mood Effects

Anabolic steroids can strongly influence the central nervous system.

• Potential issues: aggression, irritability, mood swings, anxiety, depression, post-cycle lethargy.

• Some users experience a confidence boost on-cycle but a crash when hormones drop post-use.

• Recommendation: monitor mental health closely and seek professional support if symptoms escalate.

Other Health Concerns

• Prostate enlargement in men, with potential long-term risks.

• Possible changes in insulin sensitivity and glucose tolerance.

• Elevated hematocrit and blood viscosity, raising clotting risks—some athletes donate blood to reduce this.

• Injection-site risks: infection or abscesses if not using sterile technique.

Legal and Ethical Risks

Stanozolol (Stanoplex) is a controlled substance in many countries.

• Non-medical use is illegal and may lead to prosecution.

• In sports, it is a banned substance, and athletes risk suspension, loss of titles, and reputational harm.

• Always weigh temporary physique or performance benefits against long-term health and legal consequences.

Frequently Asked Questions About Stanoplex XT Labs (Stanozolol)

Is Stanoplex XT Labs the same as Winstrol?

Yes. Winstrol is the original brand name for stanozolol, introduced by Winthrop in the 1960s. Stanoplex XT Labs is a modern underground-lab product that also contains stanozolol at 100 mg/mL in injectable form. The main difference is manufacturer and branding: Winstrol was pharmaceutical grade (now discontinued in most markets), while Stanoplex is produced by XT Labs for the underground market. Both deliver the same active compound and have identical effects and side-effect profiles when dosed equivalently.

Is Stanoplex (Stanozolol) legal to use?

Not without a prescription. In the United States, stanozolol is a Schedule III controlled substance, making possession or use without a doctor’s prescription illegal. Other countries enforce similar regulations. Because Stanoplex XT Labs is an underground lab product, it is not a prescription medication and is considered illicit. Additionally, in both professional and amateur sports, stanozolol is strictly banned at all times. Athletes caught using it risk suspensions, loss of titles, and reputational damage. Always check local regulations before use.

What are the common side effects of Stanoplex XT Labs?

Stanoplex (stanozolol) can cause significant health risks. Liver toxicity is a primary concern, as stanozolol can elevate liver enzymes and in rare cases cause serious liver damage such as hepatitis or tumors. It is also well known for negatively impacting cholesterol by lowering HDL (“good” cholesterol) and raising LDL (“bad” cholesterol), which increases cardiovascular risk. Other common side effects include androgenic issues like acne, oily skin, and hair loss in men, as well as virilization in women. Many users also report joint pain or “dry joints,” testosterone suppression in men, and mood changes ranging from irritability to depression. Regular blood tests for liver function, lipid profile, and hormone levels are strongly advised.

How do bodybuilders typically use Stanoplex XT Labs in a cycle?

In bodybuilding, Stanoplex XT Labs is most often used during cutting cycles. The typical duration is 6–8 weeks. Male athletes usually take about 50 mg every other day or 30–50 mg daily, which equals around 200–350 mg per week. Because it is water-based with a short half-life, injections are done daily or every other day. It is almost always stacked with a testosterone base of around 300–500 mg per week to avoid low-testosterone symptoms. Many also combine it with Trenbolone, Masteron, or Primobolan for stronger cutting effects. Users often add liver support and heart health supplements, such as fish oil, to reduce risks. After the cycle, post-cycle therapy (PCT) with Nolvadex or Clomid for 4–6 weeks is essential to help restore natural testosterone production.

Can women use Stanoplex XT Labs (stanozolol)?

Women can use stanozolol, but only with extreme caution. It is considered one of the more female-friendly steroids due to its lower androgenic rating, yet virilization risks remain high. A typical female dose is 5–10 mg per day orally, for no more than 4–6 weeks. Even at low doses, some women may develop irreversible side effects such as voice deepening, clitoral enlargement, acne, and hair growth. Because Stanoplex comes in a 100 mg/mL injectable concentration, precise low dosing is difficult, so oral Winstrol tablets of 5–10 mg are usually preferred. If women use the injectable form, very small doses must be carefully measured and discontinued at the first signs of virilization. Many experts recommend Anavar as a safer alternative.

How long does Stanoplex XT Labs (Stanozolol) stay detectable in the body?

Stanozolol has a long detection time due to its unique metabolites. Injectable Stanoplex can be detected in urine for up to 8–9 weeks after the last dose. Oral Winstrol clears slightly faster but can still be found for about 3–4 weeks. While the active half-life is only around 9 hours, meaning its effects fade within a day or two, traces remain in tissues and are excreted slowly. For this reason, athletes in tested competitions risk a positive result even months after use, making Stanoplex one of the riskiest steroids in terms of anti-doping detection.

References:

(1) Zhu W, Ma Y, Li X, Han T, Li L, Zhao Z, Yu Z. Effect of Stanozolol combined with Cyclosporine A on aplastic anemia. Am J Transl Res. 2023 Nov 15;15(11):6660-6666. PMID: 38074827; PMCID: PMC10703648. https://pmc.ncbi.nlm.nih.gov/articles/PMC10703648/

(2) Mowaad, N.A., Elgohary, R. & ElShebiney, S. Effect of Stanozolol and/or Cannabis Abuse on Hypertrophic Mechanism and Oxidative Stress of Male Albino Rat Cardiac Tissue in Relation to Exercise: A Sport Abuse Practice. Cardiovasc Toxicol 24, 527–538 (2024). https://doi.org/10.1007/s12012-024-09859-0 https://link.springer.com/article/10.1007/s12012-024-09859-0#citeas

(3) Nunes, V., Schinoni, M. I., Bessone, F., Lucena, M. I., Medina-Cáliz, I., Hernandez, N., … & Paraná, R. (2025). Stanozolol-induced Liver Injury: A Distinctive Cholestatic Clinical and Biochemical Phenotype at Presentation. Journal of Clinical and Experimental Hepatology, 15(3), 102506. https://www.sciencedirect.com/science/article/abs/pii/S0973688325000064

Author : 

Author: Dr. Alejandro Martinez, MD, PhD

Credentials:
Dr. Alejandro Martinez is an American physician and clinical researcher with expertise in sports medicine, endocrinology, and pharmacology. He holds a PhD in Molecular Biology from the University of California, San Diego (UCSD) and completed his residency in Internal Medicine and Endocrinology at Johns Hopkins University School of Medicine.

Expertise:
Over the past 15 years, Dr. Martinez has published extensively on anabolic-androgenic steroids (AAS), hormone replacement therapies, and the cardiovascular and metabolic risks associated with performance-enhancing drugs. His work bridges clinical evidence and practical applications, focusing on how substances like stanozolol (Winstrol/Stanoplex) affect muscle physiology, liver function, and long-term cardiovascular health.

Affiliations:

• Member, Endocrine Society (ENDO)

• Member, American College of Sports Medicine (ACSM)

• Contributor to peer-reviewed journals including Journal of Clinical Endocrinology & Metabolism and Cardiovascular Toxicology.

Author Statement:
Dr. Martinez’s professional background and Latino heritage give him a unique perspective in addressing both the scientific and cultural aspects of anabolic steroid use across diverse athletic populations in the United States and Latin America.