Oils

Test 400

Name: Test 400
Brand: Quanta Pharmaceuticals

A three-ester testosterone blend lab-verified at 413.98mg/ml, combining fast onset with sustained release.

Test 400 combines three testosterone esters at a combined 400mg/ml, blending immediate and sustained release profiles: Testosterone Enanthate (126.79mg/ml, 4-5 day half-life), Testosterone Cypionate (132.03mg/ml, 5-8 day half-life), and Testosterone Decanoate (155.16mg/ml, 7-9 day half-life). Independent lab testing of this batch confirmed a total concentration of 413.98mg/ml — around 103.5% of the 400mg/ml label claim — with the higher overall concentration reducing the injection volume needed per dose compared with single-ester preparations.

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Independent laboratory documentation

Certificates of Analysis

View the laboratory reports currently published for this product.

Raw Material Analysis

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Specifications

Vial Size

10ml

Concentration

400mg/ml

Blend

Testosterone Enanthate 126.79mg/ml + Cypionate 132.03mg/ml + Decanoate 155.16mg/ml

Administration

Intramuscular

Research Benefits

Layered release — Three esters with staggered half-lives provide both earlier onset and sustained levels from one injection.
High total concentration — 400mg/ml reduces injection volume for researchers running higher weekly doses.
Muscle protein synthesis — Drives the core anabolic pathway shared across the testosterone ester class.
Verified potency — Independently confirmed at 413.98mg/ml, slightly above label claim.

How It Works

Test 400 blends three testosterone esters of increasing chain length — enanthate, cypionate, and decanoate — each cleaved by esterase enzymes at a different rate after intramuscular injection. The enanthate fraction is liberated first, cypionate follows on a similar but slightly extended timeline, and decanoate sustains release over the following one to two weeks.

As with any testosterone ester, the freed hormone binds androgen receptors to drive nitrogen retention, protein synthesis, and red blood cell production. The three-ester approach is studied primarily for its pharmacokinetic profile — more stable blood levels across a dosing interval than a single-ester preparation at equivalent frequency.

⚠ 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. Test 400 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.