SteroidNandrolone
Nandrolone Phenylpropionate (NPP)
19-nor injectable (NPP, short ester)
Also known as NPP, npp, nandrolone, Nandrolone Phenylpropionate
Half-life
~2-4 days
What is Nandrolone Phenylpropionate (NPP)?
Short-ester nandrolone with anabolic activity and lower DHT conversion than testosterone.
How Nandrolone Phenylpropionate (NPP) works
AR agonist with progestogenic activity; increases protein synthesis and collagen turnover in connective tissue.
Benefits & uses
- Muscle mass
- Joint comfort (reputation)
- Faster clearing than Deca — more control
Common uses: Muscle building, mass phases (shorter-ester nandrolone).
Nandrolone Phenylpropionate (NPP) dosage
Protokol doesn't recommend doses for prescription or controlled compounds. Any figures below are reference or observational reports — dosing should be set with a qualified clinician.
- Protocol notes
- 100-400mg per week split EOD or E3D. Faster acting than Deca, clears faster. Always run with testosterone base.
- Commonly reported
- Frequent dosing due to short ester (observational)Observational use reports — not a recommendation.
Nandrolone Phenylpropionate (NPP) half-life
~2-4 days
Nandrolone Phenylpropionate (NPP) side effects
- Prolactin-related sexual dysfunction
- Water retention
- Suppression of HPT axis
- HPTA suppression
- Raised prolactin → sexual dysfunction/gyno
- Sexual side effects
- Lipid shift
- Frequent injections
Warnings & monitoring
- Requires bloodwork incl. prolactin + medical monitoring
- Prolactin management may be needed
- PCT planning
Commonly stacked with
Track Nandrolone Phenylpropionate (NPP) in Protokol.
Log doses, model half-lives, check interactions, and line it all up against your bloodwork. Free on iPhone and Android.
