What is Nandrolone Phenylpropionate 100 (Astera Labs)?
Astera Labs nandrolone phenylpropionate at 100mg/ml, in a 10ml vial. Deca on a short ester, in the format that lets you draw exactly what you need.
Also sold as NPP or nandrolone phenpropionate.
Nandrolone phenylpropionate is the same hormone as deca on a much shorter ester. It builds mass steadily and has nandrolone's reputation for joint comfort, but where decanoate takes a month to reach working levels and weeks to clear, this is in and out in days.
Nandrolone Phenylpropionate 100 benefits
- Working within about a week rather than the four to six deca needs
- Clears in days, so post-cycle therapy starts sooner and problems can be stopped quickly
- The joint comfort nandrolone is known for, without the long decanoate tail
- Less water than deca at the same weekly total
- Draw any volume, so a 75mg dose is 0.75ml rather than three quarters of an ampoule wasted
Nandrolone Phenylpropionate 100 dosage
- Beginner
- 300mg per week, which is 1ml three times weekly
- Intermediate
- 300 to 450mg per week
- Advanced
- 450 to 600mg per week
- Run alongside
- Testosterone at or above the nandrolone dose
- Frequency
- Three times weekly, or every other day
- Half-life
- About 4 to 5 days
At 100mg/ml the arithmetic is direct: 1ml is 100mg, so 300mg a week is 1ml three times.
Three injections a week is the floor. The short ester is the whole point, and once-weekly dosing throws that away while keeping all the suppression.
Package content
- Vial
- 10ml sterile multidose
- Strength
- 100mg/ml
- Nandrolone per vial
- 1000mg
- Carrier
- Miglyol 812
- Brand
- Astera Labs
At 300mg a week one vial covers just over three weeks.
Store below 30°C. Protect from light. Do not freeze. Keep out of reach of children.
Who is Nandrolone Phenylpropionate 100 for?
Experienced users who want nandrolone in a cycle short enough that deca would still be building when it ended.
DECAMED PP 100 is the same 100mg/ml at the same price as sealed ampoules. The vial wins if you dose in anything other than whole millilitres; the ampoules win on a straight 100mg three times a week, where each one is exactly a dose.
Before you run it. Nandrolone suppresses your own testosterone hard, so it is run alongside testosterone rather than on its own and
post-cycle therapy is not optional. It is also progestagenic, which means gyno can develop through prolactin rather than estrogen, and an aromatase inhibitor alone will not stop that. The
estrogen management guide covers the difference, and
bloodwork is how you know where you stand. Not for anyone under 18, and not for women who are pregnant or breastfeeding.
How to use Nandrolone Phenylpropionate 100
Intramuscular injection, three times a week or every other day. Wipe the stopper with alcohol before every draw, which matters here because you are entering it often. The injection technique guide covers it.
Frequently asked questions
NPP or deca, which should I run?
Same hormone, different ester. NPP reaches working levels in about a week against deca's four to six, and clears in days rather than weeks. That makes it the better choice for shorter cycles and for anyone who wants the option to stop.
Deca wins on convenience: one injection a week against three. If you are running sixteen weeks anyway, that difference adds up.
How often do I inject NPP?
Three times a week, or every other day. The phenylpropionate ester is short, so anything less frequent leaves troughs between injections rather than a steady level.
Pairing the injections with your testosterone shots on the same days keeps the schedule manageable.
Will it affect libido?
It can. Nandrolone is progestagenic, and raised prolactin alongside suppressed testosterone is what produces the effect people call deca dick. The shorter ester does not change that, only how quickly it comes on and goes away.
Keeping testosterone higher than the nandrolone dose is the first defence. If symptoms appear anyway, prolactin is the marker to check rather than assuming it is estrogen.
Do I have to run testosterone with it?
Yes. Nandrolone suppresses your own production heavily while doing little for what testosterone handles, libido and erectile function among them. Running it alone is the direct route to problems.
The standard approach is testosterone at or above the nandrolone dose.
Vial or ampoules for NPP?
Depends on your dose. At a flat 100mg three times a week, an ampoule is exactly one dose and stays sealed until use, which is the cleaner option.
The vial wins if you dose at 75mg or 150mg, where ampoules force you to either waste part of one or open two.
