Boldenone Cypionate
Active Substance: Boldenone Cypionate
Description
Boldenone Cypionate is an anabolic-androgenic steroid (AAS) that is not widely available and is primarily used for research or forensic purposes. It's a synthetic derivative of testosterone and a variation of the more common Boldenone Undecylenate (Equipoise), with a different ester attached to the boldenone molecule. The cypionate ester was developed to alter the long half-life of boldenone undecylenate.
Side Effects and Benefits
Benefits:
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Increased nitrogen retention
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Improved protein synthesis
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Stimulates appetite
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Increases red blood cell production (erythropoiesis) in the kidneys
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Can lead to increased lean muscle mass and improved physical condition
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May have beneficial effects on joint healing and bone density
Side Effects: Boldenone Cypionate, like other anabolic steroids, carries a risk of significant side effects, many of which can be serious and some are irreversible. These include:
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Cardiovascular: Increased risk of heart or blood vessel problems, including heart attack and stroke. May also lead to changes in cholesterol levels.
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Liver: Potential for liver problems, including liver tumors and blood-filled cysts (peliosis hepatis), especially with high doses or long-term use.
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Hormonal:
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In males: Painful and/or prolonged erections, decreased testicular size and function, low sperm count, and gynecomastia (breast enlargement).
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In females: Virilization, which can include a deeper voice, facial and body hair growth, and clitoral enlargement. These changes may be permanent.
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Psychological: Anxiety, mood changes, irritability, and aggression.
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Other: Acne, hair loss (male pattern baldness), pain and swelling at the injection site, and in children, can lead to premature cessation of bone growth.
Pros and Cons
Pros:
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Anabolic properties: Strong muscle-building effects.
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Increased red blood cells: Can lead to improved endurance.
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Potential for joint and bone health: May stimulate the formation of collagen and increase bone density.
Cons:
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Illicit use and legal status: It is a controlled substance in many countries, and its use for performance enhancement is generally illicit.
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Serious health risks: The potential for severe and even life-threatening side effects, including cardiovascular issues, liver damage, and hormonal disruption.
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Lack of human medical approval: Boldenone Undecylenate is approved for veterinary use in some countries, but Boldenone Cypionate is not approved for human use and is intended for forensic and research purposes only.
Dosage and Frequency
There is no FDA-approved dosage for Boldenone Cypionate for human use. The dosage and frequency for Boldenone Undecylenate in horses is 0.5 mg per pound of body weight intramuscularly, with treatment repeated at three-week intervals.
Half-Life and Detection Time
Information on Boldenone Cypionate is limited, but for the related testosterone cypionate, the half-life is approximately 8 days. The detection time for anabolic steroids varies widely based on the specific substance, dosage, frequency of use, and individual metabolism. Oral steroids may be detectable for a few weeks, while injectable steroids with long half-lives can be detected for months. Hair and nail tests can detect steroid use for up to 12 months.
Sterogenic, Progestrogenic, and Prolactin Effects
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Estrogenic effects: Boldenone has low estrogenic activity, meaning it has a lower tendency to convert to estrogen compared to testosterone.
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Progestrogenic effects: Boldenone has little to no progestogenic activity. This means it is unlikely to directly stimulate the progesterone receptor.
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Prolactin effects: While not directly progestogenic, some anabolic steroids can lead to an increase in prolactin levels, which may contribute to side effects like gynecomastia. However, this is more commonly associated with progestogenic steroids like nandrolone and trenbolone.
Anabolic-Androgenic Ratio
The anabolic-androgenic ratio is a way to measure a steroid's anabolic (muscle-building) effects versus its androgenic (masculinizing) effects. The anabolic-androgenic ratio for boldenone is typically cited as 100:50. This means it is considered to have the same anabolic potency as testosterone (which is the baseline with a ratio of 100:100) but only about half the androgenic potency.
Pharmacological Properties
Half Life
5 days
Active Dose
69%
Detection
3.57 weeks
Concentration
250 mg/ml
Anabolic/Androgenic Profile
Usage Effectiveness
Activity Profile
Estrogenic
None
Progestanic
None
Water Retention
None
Aromatization
No
Benefits
Dosage Recommendations
Beginner
200-400 mg/week
Intermediate
400-600 mg/week
Advanced
600-800 mg/week
Evidence-based planning resources
Dive deeper into Boldenone Cypionate cycle design, stacking options, and harm-reduction checklists available inside Anabolic Planner.
- Boldenone Cypionate compound database overviewCompare Boldenone Cypionate with other steroid agents in the structured compound index.
- Boldenone Cypionate stack and cycle templatesReview evidence-based cycle outlines, dose progressions, and PCT pairings that incorporate Boldenone Cypionate.
- Harm-reduction guide for Boldenone CypionateRefresh safety monitoring, lab work, and countermeasure strategies tailored for Boldenone Cypionate protocols.
Peer-reviewed reference material
Validate mechanisms, contraindications, and regulatory guidance for Boldenone Cypionate with trusted clinical databases.
- Boldenone Cypionate clinical research on PubMedSearch peer-reviewed human and veterinary studies discussing efficacy, endocrine impact, and contraindications.
- Boldenone Cypionate pharmacology via Drug Information PortalReview mechanisms, synonyms, regulatory status, and toxicology summaries from the U.S. National Library of Medicine.
Side Effects
Common
Severe
Safety Information
Liver Toxicity
None
Kidney Toxicity
Low
Cardiovascular Risk
Moderate
Disclaimer: This information is for educational purposes only. Always consult with a qualified healthcare professional before using any compounds.