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QSC Testosterone Cypionate 250 mg/mL | 10 × 10 mL Vial-Kit | 100 mL / 25,000 mg total

✓ 99%+ Purity ✓ COA Available
✓ Domestic Shipping (USA/EU/UK/AU/CA) ✓ 3–7 Day Delivery

$490

or
SKU: QSC-TESTOSTERONE-250MG-ML-10VIAL
Categories: China, European Union, Injectables, Performance & Hormone Optimization Peptides, Research Peptides
Brand: QSC
Technical Specs & COA
PubMed
Disclaimer & Storage Guide

What is Testosterone Cypionate?

Testosterone Cypionate injectable (branded as Depo-Testosterone or generics) is a pharmaceutical oil-based solution for intramuscular administration, used primarily for testosterone replacement therapy (TRT) in adult males with hypogonadism (low or absent endogenous testosterone due to medical conditions like primary/secondary testicular failure).

The cypionate ester provides slow release from the injection site, with a biological half-life of approximately 8 days, enabling dosing every 1–4 weeks (commonly weekly or bi-weekly for stable blood levels in TRT). After injection, esterases hydrolyze the ester, releasing free testosterone that binds androgen receptors to support male sexual characteristics, muscle/bone maintenance, red blood cell production, and libido.

Research Applications

  • Testosterone replacement in hypogonadism (primary/secondary)
  • Pharmacokinetics/comparative ester studies (cypionate vs. enanthate/undecanoate)
  • Effects on muscle, bone density, erythropoiesis, mood/libido
  • Endocrine suppression/recovery dynamics
  • Masculinizing hormone therapy in transgender care
  • Treatment of delayed puberty or wasting conditions

Quick Product Specs

  • Form: Injectable Solution (sterile, oil-based; clear, colorless to pale yellow viscous liquid)
  • CAS Number: 58-20-8
  • Chemical Name: Testosterone 17β-cyclopentylpropionate (or Androst-4-en-3-one, 17-(3-cyclopentyl-1-oxopropoxy)-, (17β)-)
  • Storage: Controlled room temperature 20–25°C (68–77°F); excursions permitted 15–30°C (59–86°F); protect from light; do not refrigerate (may cause crystallization/cloudiness—warm gently to redissolve if occurs)
  • Shelf Life: Typically 24–36 months unopened from manufacture date (pharmaceutical or lab vials); multi-dose vials discard 28 days after first puncture for sterility (per USP/manufacturer guidelines)
  • Type: Long-acting injectable androgen/anabolic steroid (AAS); esterified testosterone; deep intramuscular injection only (gluteal preferred)

Certificate of Analysis (COA)


https://verify.janoshik.com/tests/100052-Sample_1_S1X26KM8HDBK

Recent PubMed Research on Testosterone

  • Association between chronic inflammation status and serum testosterone and free testosterone in adult males. (2026)
  • Vitamin D levels in relation to sexual steroids, sexual function, and quality of life in patients of an andrology outpatient clinic. (2026)
  • Association of frailty index with all-cause mortality in US adults with testosterone deficiency: mediation by the platelet-to-HDL-C ratio (PHR). (2026)

Disclaimer & Storage Guide

All QSC (Qingdao Sigma Chemical) products are strictly for laboratory, scientific, and research use only. They are not for human consumption, medical treatment, diagnosis, or disease prevention.

By purchasing or using QSC peptides, you acknowledge and agree that:

  • You are a qualified researcher or acting under supervision of one.
  • Products will only be used for legitimate research purposes.
  • Products are not evaluated by the FDA or any regulatory authority for human use.
  • You assume all responsibility for legal compliance, proper handling, and storage.
  • You meet the legal age requirement in your jurisdiction.

No Warranty: Products are sold “as is,” with no express or implied warranties regarding efficacy, safety, or suitability. Results in research may vary, and QSC is not responsible for outcomes, interpretations, or conclusions drawn from studies.

General Safety & Handling

  • Not for Human Use: Peptides are for research only. Off-label or personal use is at your own risk.
  • PPE Required: Always use appropriate personal protective equipment when handling peptides.
  • Storage Compliance: Follow recommended storage conditions to maintain integrity and prevent degradation.
  • Disposal: Dispose of all materials according to institutional biosafety and hazardous waste protocols.
  • Verify Quality: COAs are available on each product page for identity, purity (>99%), and batch consistency.

Peptide Storage Guidelines

General Rules for All Peptides

  • Protect from light: Store in opaque containers or dark environments.
  • Minimize moisture: Use airtight containers with desiccant when needed.
  • Maintain stable temperature: Avoid freeze-thaw cycles.
  • Handle carefully with sterile equipment to prevent contamination.

Lyophilized Peptides (Freeze-Dried Powder)

Unopened:

  • Long-term: -20°C (-4°F); Short-term: 2–8°C (36–46°F) up to 6 months
  • Store sealed with desiccant and protected from light

Reconstituted:

  • Refrigerate at 2–8°C (36–46°F), use within 2–4 weeks
  • For longer storage, aliquot and freeze at -20°C, thaw only what you need
  • Avoid shaking or vigorous mixing

Liquid Peptides (Non-Lyophilized)

  • Refrigerate at 2–8°C unless otherwise specified
  • Use within 1–6 months; do not freeze unless indicated
  • Keep in sealed, sterile, opaque container

Peptide Blends

  • Store unopened: 2–8°C short-term; -20°C long-term
  • Reconstituted: 2–8°C for 2–4 weeks; freeze aliquots for longer storage
  • Stability may vary; follow product-specific instructions

Peptide Tablets

  • Room temperature (15–25°C / 59–77°F) in cool, dry place
  • Keep sealed and away from light
  • Follow expiration dates; do not refrigerate or freeze unless instructed

Transport Tips: Use insulated packaging with ice packs for lyophilized or liquid peptides.

Legal & Regulatory Compliance

  • Peptides are sold for research purposes only.
  • Purchasers are responsible for compliance with all local, state, and federal laws.
  • Some peptides may be controlled substances in certain jurisdictions.
  • Institutional approvals (IRB, IACUC, biosafety) may be required.
  • Export/import regulations vary; purchaser assumes all responsibility.

Research Applications Disclaimer

  • Listed applications are based on scientific literature and are for informational purposes only.
  • QSC does not provide protocol guidance or endorse specific research studies.
  • Outcomes may vary by experimental conditions and may not translate to in vivo or human systems.

 

For Technical Support, COA Requests, or Product Information:
Email: support@qsc-usa.com
Response time: 24–48 hours

 

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