Zyvex Pharmaceuticals
Zyvex Pharmaceuticals Deca and NPP - Nandrolone 300, 500 and 100
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Zyvex Pharmaceuticals
Zyvex Pharmaceuticals Testosterone Propionate, Enanthate and Cypionate
Injection · 100 mg/ml · 10 ml
Out of stock
$40.00
Zyvex Pharmaceuticals Testosterone is a three-ester injectable line covering a release window from about two days to roughly one week. Available for purchase in the following variants: Propionate 100, Enanthate 250 and Cypionate 250.
Supplied in sealed 10 ml vials. GMP-manufactured, each batch HPLC-verified with the Certificate of Analysis on file. Testosterone vials for sale with international shipping with a 4 to 10 day transit window.
Discreet plain packaging
Worldwide reship guarantee
Crypto & card accepted
Product overview
Zyvex Pharmaceuticals Testosterone - Three Injectable Esters
Zyvex Pharmaceuticals Testosterone is a three-vial injectable line that puts the same hormone in three different release profiles: Propionate 100, Enanthate 250 and Cypionate 250. Buy testosterone here in the ester that matches the injection schedule you can actually keep, from the short propionate ester through the middle enanthate to the slower cypionate. Every vial is GMP-manufactured and HPLC-verified, with a Certificate of Analysis held for the batch.
- Three formulations - Propionate 100, Enanthate 250, Cypionate 250
- GMP-manufactured - pharmaceutical-grade production standards
- HPLC-verified - independent lab testing with COA per batch
- international shipping with a 4 to 10 day transit window
How Testosterone Esters Work
Testosterone is the androgen the body already produces. An ester is the same molecule with a fatty-acid chain attached, and that chain is what slows the release of hormone out of the oil depot. Esterases clip the chain off after the injection, so the active hormone is identical in all three vials and only the time to peak and the interval between injections change. Exogenous testosterone switches off the body's own production, which is why a suppressive run is closed with a planned recovery on Nolvadex or Clomid.
Published pharmacokinetics put propionate at roughly two days, enanthate at four and a half to five days and cypionate at about eight days, so the short ester is injected every other day while the long esters are handled once or twice a week.
Variant Comparison
The three vials hold the same hormone; the table shows how the ester changes the schedule.
| Formulation | Concentration | Half-Life | Inj. Frequency | Typical Use |
|---|---|---|---|---|
| Testosterone Propionate | 100 mg/ml | About 2 days | Every other day | Short, fast taper |
| Enanthate 250 | 250 mg/ml | 4.5-5 days | Twice a week | Standard base |
| Cypionate 250 | 250 mg/ml | About 8 days | Once or twice a week | Stable, low-effort base |
Choosing the Right Formulation
Propionate 100 suits a short block or the tail of a longer run when blood levels have to fall quickly. Enanthate 250 is the everyday middle ground and works well beside the four-ester blend in Zyvex Pharmaceuticals Sustanon 250. Cypionate 250 is the choice when injections are limited to once or twice a week. For a heavier mass phase the same hormone is stacked with the nandrolone line, for example the decanoate and phenylpropionate vials in Zyvex Pharmaceuticals Deca & NPP.
Quality & Authenticity
Each batch is produced under GMP conditions and tested by third-party HPLC, with the Certificate of Analysis held for the batch. Vials are sealed and tamper-evident. Store them at room temperature, away from light, heat and moisture, and do not refrigerate or freeze them.
For laboratory research only. Consult a healthcare professional before use.
Specifications
| Brand | Zyvex Pharmaceuticals |
| Active Substance | Testosterone (three esters) |
| Formulations | Propionate 100, Enanthate 250, Cypionate 250 |
| Concentration | 100-250 mg/ml |
| Form | Injectable, oil-based |
| Vial Size | 10 ml multi-dose |
| Administration | Intramuscular injection |
| Drug Class | Injectable anabolic androgenic steroid, oil-based |
| Manufacturing | GMP-certified |
| Testing | Third-party HPLC per batch |
| Storage | Room temperature, away from light, heat and moisture |
| Shipping | International, 4-10 days transit |
Stacks
Consult a healthcare professional before any cycle. Dose figures are common community protocols.
FAQ
Before you ask
Questions, answered
It is a three-variant injectable line of the hormone testosterone, made by Zyvex Pharmaceuticals and offered as Propionate 100, Enanthate 250 and Cypionate 250. All three vials hold the same active hormone; the ester attached to it decides how fast the depot releases and how often an injection is due. The vials are sold here as laboratory research material, not as a licensed medicine.
The decision is about schedule, not strength. Propionate 100 clears in roughly two days and needs an injection every other day, which suits a short block or a fast taper. Enanthate 250 sits in the middle at four and a half to five days and is the common everyday choice. Cypionate 250 is the longest of the three at about eight days and is used when injections are limited to once or twice a week.
Community protocols split by ester: propionate every other day, enanthate twice a week, cypionate once or twice a week into the glute or thigh with a fresh pin each time. No medical schedule exists for the bodybuilding use of these vials, so the figures are common practice rather than a dosing instruction. Weekly totals and cycle length belong with a healthcare professional, not with a forum post.
Injecting testosterone shuts down the body's own production, which is why recovery is planned in advance. Because the hormone aromatises, estradiol can rise and bring water retention or breast tenderness, and because it converts to DHT, hair loss and acne are possible. Injection sites can be sore. These effects belong to the whole class and are not a property of one brand.
A recovery protocol, timed to the ester rather than to the calendar. The long esters in this line need roughly two to three weeks to clear before a SERM is started, while propionate needs only a few days. Nolvadex 20 mg daily for four weeks is the usual community pattern, with Clomid as the alternative. Bloodwork before, during and after is the only way to see whether recovery is on track.
All three variants are listed on this page with international shipping options shown in the selector above. Stock status and prices are displayed per variant when an option is chosen. International shipping is listed at 50.00 USD with a transit window of four to ten days and orders are handled within one to two business days; at the last check every option on this page was out of stock.
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