Chemical Powders

CAS 58-22-0 Testosterone Base Powder , Legal Testosterone Steroids For Muscle Growth
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Detailed Product Profile:
CAS No.: 58-22-0
Molecular formula: C19H28O2
Molecular weight: 288.43
Purity: ≥97%
Characters: White powder, odourless. Insoluble in water and soluble in alcohol,
Use:It can promote male genital growth and keep their normal function.
Minimum order quantity: 10g
Price:negotiate
Packaging Details:Packing according to the arrangement of customer orders
Payment;T/T; Western Union; Money Gram; Bank transfer.
Delivery Time;The day after the payment
Supply Ability:Mass Stock
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The report of product quality analysis:

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TEST ITEMS | SPECIFICATION | RESULTS |
Description | : White or Almost White Crystalline Powder | white powder |
Identification | : A.B. | Positive |
Assay | : 97.0~103.0% | 99.20% |
Specific Rotation | : +101°~+105° | +102.6° |
Loss On Drying | : 1.0%max | 0.28% |
Melting Point | : 153~157°C | 153.0~155.0°C |
Organic Volatile Impurities | : meets the requirement. | Conforms |
Related Substances | : meets the requirement. | Conforms |
Residual Solvents | : meets the requirement. | Conforms |
Particle Size | : 100% ≤ 20 microns | Conforms |
Conclusion | The specification conform with USP30 standard |
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Description:
Testosterone is highly favored by athletes for its ability to promote strong increases in muscle mass and strength. As a naturally occurring hormone, it remains the most popular anabolic steroid and is typically used as the base of all cycles and stacks.
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For use in bodybuilding, testosterone is almost always used as an injectable ester or suspension due to poor oral bioavailability and the impracticality of high dose transdermal or sublingual delivery. All testosterone forms in a wide sense are the same: active agent testosterone + ester attached, which determines release time and duration of the compounds active life. In a nutshell: long esters release the active agent into the blood slowly, but provide a stable hormone level for a long time (depending on the ester), without creating peaks.
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For this 8 week plan, I’d start with testosterone enanthate, three injections per week of 250 mg. The reason for dividing into two injections is the half-life is not long enough for a single injection per week to give steady levels.
On Day 1, I wouldn’t inject just 500 mg, however. Doing so wouldn’t bring blood levels where they need to be. With ongoing injections of 250 mg three times per week, it would be about a month before levels would be properly established. For better results, on Day 1 I’d inject about 750 mg as a frontload (five days’ worth, plus the usual daily amount, because the half life is about five days.) This would fairly promptly get levels where they need to be and where they’ll remain with ongoing 750 mg/week dosing.
I’d start letrozole (Arimidex could be chosen instead) at for example about 0.7mg/day, though the needed amount could be somewhat more or less. For the same reason as with the testosterone enanthate, there would be a frontload on Day 1, though here the frontload would be a triple dose, in this case 2.1 mg.
During the cycle, if sensing any sign of low estradiol such as reduced libido, depression, or joint pain I’d discontinue letrozole for 2 days, then resume at lower dose. I might get a blood test for estradiol at the two week point.
With an 8 week cycle, I wouldn’t really need HCG, but optionally could use it at 250 IU three times per week nearly throughout the cycle, until finishing a 5000 IU vial. Alternately, I might use it in just the last four weeks of the cycle, or not at all.
I won’t want to keep using testosterone enanthate through the end of Week 8, because levels would still be elevated in the next week and even into the week past that. Recovery couldn’t begin in Week 9, as I’d intend for an 8 week cycle.
So I’ll use testosterone enanthate for Weeks 1-6, but then switch to testosterone propionate 100 mg/day. I’d end its use in the middle of Week 8, so that levels will fall sufficiently for recovery to begin in the next week as planned. (Ideally I’d add orals for the last half of the week, but as this is a testosterone-only cycle, we’ll omit that.)
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Application:
I’d discontinue letrozole with the last testosterone propionate injection.
On Day 1 of Week 9, I’d start PCT with Clomid 300 mg (100 mg taken three times), and then 50 mg/day for typically 4 weeks.
And that would be a basic eight-week 750 mg/week testosterone cycle.
The plan would be better than typical recommendations because it achieves effective levels as quickly as possible, maintains them for as long as possible during the planned cycle length, and transitions nearly as rapidly as possible to levels allowing recovery.
I favor either being at effective levels, or being at levels allowing recovery. Being at transitional levels that aren’t very anabolic yet are suppressive is a waste of time.
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How does testosterone compare to other steroids?
Testosterone is the primary male sex hormone that is produced mainly by the testes in men, and by the ovaries in females. Additionally, small amounts are also produced by the adrenal glands in both sexes. This hormone plays an essential role in muscle strength, muscle size, metabolism, immune system, cognitive functions, state of mind, and sexual development.
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TESTOSTERONE SERIES |
1 | Testosterone enanthate | CAS: 315-37-7 |
2 | Testoster-one base | CAS: 58-22-0 |
3 | Testosterone acetate | CAS: 1045-69-8 |
5 | Testosterone propionate | CAS: 57-85-2 |
6 | Testosterone cypionate | CAS: 58-20-8 |
7 | Testosterone phenylpropionate | CAS: 1255-49-8 |
8 | Testosterone isocaproate | CAS: 15262-86-9 |
9 | Testosterone decanoate | CAS: 5721-91-5 |
10 | Testosterone Sustanon 250 | ? |
11 | Testosterone undecanoate | CAS: 5949-44-0 |
12 | Methyltestoster-one | CAS: 65-04-3 |
13 | Methyltestoster-one | CAS: 58-18-4 |
14 | Methyltestoster-one | CAS: 1039-17-4 |
15 | Turinabol | CAS: 855-19-6 |
16 | Oral turinabol | CAS: 2446-23-3 |
17 | Mestanol-one | CAS: 521-11-9 |
18 | Stanol-one (androstanolone) | CAS: 521-18-6 |
19 | Mesterol-one (Proviron) | CAS: 1424-00-6 |
20 | Fluoxymester-one (Halotestin) | CAS: 76-43-7 |
21 | 1-Test-osterone | CAS: 65-06-5 |
22 | 1-Testoster-one Enanthate | ? |
23 | 1-Testoster-one Acetate | ? |
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