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Description
Testosterone Phenylpropionate (TPP) powder is a synthetic testosterone ester widely used as a raw material for the production of injectable testosterone formulations. It consists of a testosterone molecule attached to a phenylpropionate ester, which modifies the hormone's release rate after injection.
TPP offers a faster onset of action than long-acting esters such as Testosterone Cypionate and Testosterone Enanthate, while lasting longer than Testosterone Propionate. This intermediate profile has made it a popular component in multi-ester testosterone blends.


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Clinical data
Trade names
TPP; Testosterone phenpropionate; Testosterone hydrocinnamate CAS
1255-49-8
Molar mass
420.593
Formula
C28H36O3 Purity
Above 98%
Apprarance
White crystalline powder
How Testosterone Phenylpropionate Works
After injection, the phenylpropionate ester slows the release of testosterone into the bloodstream. Compared with shorter esters, it requires less frequent administration while still providing relatively stable hormone levels.
This balance between rapid onset and moderate duration has made TPP a preferred option in various testosterone formulations designed for performance enhancement and hormone replacement applications.
Applications
Pharmaceutical Research
Testosterone Phenylpropionate is commonly utilized by pharmaceutical manufacturers and research organizations developing hormone-based formulations.
Injectable Testosterone Production
TPP powder serves as an active pharmaceutical ingredient (API) in oil-based injectable products.
Multi-Ester Testosterone Blends
It is frequently incorporated into testosterone blends to create a combination of fast and sustained hormone release profiles.
Advantages of Testosterone Phenylpropionate
Faster Action Than Long Esters
Compared with Testosterone Enanthate or Testosterone Cypionate, TPP reaches effective levels more quickly.
Longer Activity Than Propionate
The phenylpropionate ester remains active longer than testosterone propionate, reducing injection frequency.
Stable Release Profile
Many users and formulators appreciate its balance between rapid onset and moderate duration.
Versatile Formulation Ingredient
TPP is compatible with various carrier oils and formulation strategies.
Testosterone Phenylpropionate vs Testosterone Propionate
Feature Testosterone Phenylpropionate Testosterone Propionate Release Speed Moderate-fast Fast Half-Life Approximately 3–4 days Approximately 2 days Injection Frequency Every 2–3 days Every 1–2 days Peak Levels More gradual Faster Stability Better Lower Testosterone Phenylpropionate vs Testosterone Cypionate
Feature Testosterone Phenylpropionate Testosterone Cypionate Onset Faster Slower Half-Life Shorter Longer Injection Frequency More frequent Less frequent Hormone Fluctuation Moderate Lower Duration Intermediate Long Storage Recommendations
Keep in a cool, dry place (<25°C / 77°F)
Store away from sunlight and moisture
Seal the container tightly to maintain quality
Key Features
High Purity (≥98%)
Strict quality control ensures consistent and reliable compositionExcellent Batch Consistency
Uniform quality across different production lotsStable Chemical Structure
Suitable for long-term storage under proper conditionsFine Crystalline Form
Easy handling and accurate measurement in lab environmentsTrusted Reference Compound
Widely recognized in pharmaceutical and academic researchPackaging Options
10g / 50g / 100g
500g / 1kg
Custom packaging available
Shipping & Handling
Discreet and secure packaging
Stable international shipping
Tracking provided after dispatch
Why Choose Us
Stable high-purity raw materials
Fast and clear communication
Reliable supply for repeat orders
Experience with global shippingUsage
The right dosage always guarantees you quality results and at the right time. The recommended testosterone phenylpropionate dosage ranges from 100-200 mg that should be taken once every three days. For the new users, it's advisable to start with low dosages in the first cycle then it can be adjusted in the following cycles. The dosage should be administered through an injection intramuscularly. Usually, you need to take the drug for about 6-8 weeks. However, this can be changed depending on how your body reacts with the testosterone phenylpropionate. You doctor can advise you to start with even lower dosages than the 100mgs per 3 days, after examining your medical condition. Ladies are also advised to take low testosterone phenylpropionate dosage to avoid developing male characteristics.
On the other hand, advanced bodybuilders or athletes 200mgs per 3 days will be the perfect dose to achieve the desired goals. For better results always accompany your dosage with proper diet and workouts more so if you want to build muscles or when in cutting cycles. This drug can be used alongside other anabolic steroids, but it also delivers quality results when used alone. For bulking cycles, you might need to stack the testosterone phenylpropionate with other steroids but involve your doctor to help you get the best combination. Also, remember to follow all the dosage instructions since overdosing can lead to severe side effects.
FAQ
What is Testosterone Phenylpropionate used for?
It is primarily used as a raw material for manufacturing testosterone-based injectable formulations and for pharmaceutical research purposes.
How does Testosterone Phenylpropionate differ from Testosterone Propionate?
TPP has a longer half-life and generally requires less frequent administration while still providing a relatively fast onset.
Is Testosterone Phenylpropionate suitable for testosterone blends?
Yes. It is commonly included in multi-ester testosterone formulations because it bridges the gap between short- and long-acting esters.
What packaging options are commonly available?
Depending on supplier capabilities, quantities may range from small research batches to large-scale bulk orders for manufacturing applications.
How should Testosterone Phenylpropionate powder be stored?
Store it in a cool, dry, and sealed environment away from direct sunlight and moisture.
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Our Advantages
1.Quality:every item is strictly tested by our professional staff and get ISO certificate.
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5.Good after-sale service: always keeping track on the status of your parcel until delivered and trying our utmost to solve customers problems entounered
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