Comparisons

Product Comparison

Deca (Nandrolone Decanoate) vs NPP (Nandrolone Phenylpropionate)

Deca (Decanoate, long) versus NPP (Phenylpropionate, short). Joint healing versus more aggressive peaks.

Deca (Nandrolone Decanoate) vial Nandrolone Line

Deca (Nandrolone Decanoate)

Form
Oil
Sizes
10 ml (200 mg/ml), 10 ml (300 mg/ml), 10 ml (433 mg/ml), 10 ml (250 mg/ml), 10 ml (400 mg/ml)
Price (10-pack)
65 - 490 EUR
Full detail page
NPP (Nandrolone Phenylpropionate) vial Nandrolone Line

NPP (Nandrolone Phenylpropionate)

Form
Oil
Sizes
10 ml (100 mg/ml), 10 ml (200 mg/ml), 10 ml (150 mg/ml)
Price (10-pack)
280 - 360 EUR
Full detail page

By the numbers

Number of sizes Deca (Nandrolone Decanoate): 5 NPP (Nandrolone Phenylpropionate): 3
Price from (10-pack) Deca (Nandrolone Decanoate): 65 EUR NPP (Nandrolone Phenylpropionate): 280 EUR
Price up to (10-pack) Deca (Nandrolone Decanoate): 490 EUR NPP (Nandrolone Phenylpropionate): 360 EUR

Values from the sizes and catalogue prices on this page, without Express and discounts.

Half-life compared

How quickly do they break down?

Share left after one dose, calculated from the half-lives in the lexicon

Deca (Nandrolone Decanoate)~9 daysNPP (Nandrolone Phenylpropionate)~2.5 days
Half-life = 50 %
Day 18 after the dose
Deca (Nandrolone Decanoate)25 %
NPP (Nandrolone Phenylpropionate)0.7 %
ProductHalf-lifeDay 7Day 14Day 28
Deca (Nandrolone Decanoate)~9 days58 %34 %11.6 %
NPP (Nandrolone Phenylpropionate)~2.5 days14.4 %2.1 %< 0.1 %

Simplified model without an absorption phase, half-lives from the TPD lexicon.

Level

Level with regular doses

Each dose adds to what is left of the last one until a plateau forms. Values relative to the first dose, simplified model, no dosing information.

NPP (Nandrolone Phenylpropionate): one dose every other day, 2 days between dosesLexicon: Intramuscular, every other day
Peak 2.35×Trough 1.35×
Day 10 · 6. dose
2.27× of the first dose
Plateau
from Day 10

96 % of the plateau after dose 6

Peak
2.35×

of the first dose

Trough
1.35×

before the next dose

Feature Deca (Nandrolone Decanoate) NPP (Nandrolone Phenylpropionate)
Category Nandrolone Line Nandrolone Line
Subcategory Nandrolone Line (Inject) Nandrolone Line (Inject)
Form Oil Oil
Price range 65 - 490 EUR 280 - 360 EUR
GLP-1 No No

Quick reference

What both have in common

  • Same subcategory: Nandrolone Line (Inject) - addressed via overlapping mechanisms.
  • Same main category: Nandrolone Line / Nandrolone Line

This page is a high-level comparison for community discussion only. Refer to the linked detail pages for full descriptions, risk profiles and peer-reviewed studies. Not medical advice.

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