Oils

Testosterone Cypionate

Name: Testosterone Cypionate
Brand: Quanta Pharmaceuticals

A long-acting testosterone ester at a lower 200mg/ml concentration for smoother, once-weekly research dosing.

Testosterone Cypionate is a long-acting injectable testosterone ester, supplied here at 200mg/ml in a 10ml vial. Its 8-carbon cypionate ester gives a half-life of roughly 5-8 days, marginally longer than enanthate, and its lower per-ml concentration is associated with smoother, less irritating injections. Independent lab testing confirmed purity of 98% or higher for this batch.

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Independent laboratory documentation

Certificates of Analysis

View the laboratory reports currently published for this product.

Certificate of Analysis

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Specifications

Vial Size

10ml

Concentration

200mg/ml

Half-Life

5-8 days

Administration

Intramuscular

Research Benefits

Muscle protein synthesis — Supports nitrogen retention and lean tissue development.
Strength & performance — Associated with increased power output and training capacity.
Extended release — Among the longer-acting testosterone esters, suited to once-weekly dosing.
Smoother injections — A lower 200mg/ml concentration reduces injection-site discomfort relative to higher-strength esters.
Verified purity — Independently confirmed at 98%+ purity.

How It Works

Testosterone Cypionate attaches testosterone to an 8-carbon cypionate ester, which is cleaved by esterase enzymes following intramuscular injection to release free testosterone gradually into circulation over roughly 5-8 days.

Once released, testosterone binds androgen receptors to initiate the same anabolic cascade studied throughout the ester class — increased protein synthesis, nitrogen retention, and red blood cell production. Cypionate and enanthate are near-identical pharmacokinetically; the choice between them is largely one of regional convention and personal tolerance.

⚠ For Research Use Only

This product is supplied strictly for in-vitro laboratory and preclinical research use. It is not a drug, food, dietary supplement, or cosmetic, and is not intended for human or animal consumption, diagnosis, treatment, or prevention of any disease. Testosterone Cypionate must be handled only by qualified individuals trained in proper laboratory safety procedures.

By purchasing, the buyer confirms this product is being acquired for legitimate research purposes and assumes full responsibility for its handling, storage, and use in compliance with all applicable local, national, and international laws.