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Masteron vs RAD-140: side-by-side comparison

Anabolic Steroid

Drostanolone · Mast · Drostanolone Propionate

A DHT-derived compound used primarily as a cosmetic finisher for competition. Provides muscle hardness, dryness, and acts as a mild anti-estrogen.

6.0/10 natty
Full breakdown →
VS
SARM

Testolone · RAD140 · Vosilasarm

Designed to provide the benefits of testosterone in muscle and bone without prostatic effects. One of the most potent SARMs available, providing significant lean mass and strength gains.

6.0/10 natty
Full breakdown →

6 / 10 natty scale / 6

Same lane

Both sit in the same class, but they are pointed at different goals: Masteron at cutting, cosmetic, RAD-140 at bulking, recomposition.

The tape

Core ratings

The same three rulers every entry on the site is scored with, read head to head.

MasteronRAD-140
6.0

Natty scale

1 natural · 10 heavy

6.0
3.5

Effectiveness

Documented effect · of 5Δ0.5

4.0
2.5

Side-effect severity

Documented burden · of 5Δ1

3.5

Cost side

Body-load fingerprint

Where each one actually lands its strain, on the calculator's thirteen channels. Tap a row for what it means and which labs track it.

MasteronRAD-140

Cardiometabolic

Organ strain

Hormonal

Systemic

Injection & site care

Bars show strain at each one's typical protocol, not your dose. ≈ marks values inferred from side-effect data or category rather than hand-graded. For your numbers, run the calculator.

Logistics

The vitals

MasteronRAD-140
Anabolic Steroid
Class
SARM
Injectable (IM)
Route
Oral
300-600 mg/weekPropionate: EOD minimum, daily preferred for stable levels; Enanthate: 2x/week
Typical dose
10-20 mg/dayOnce daily oral
2-3 days (Propionate), 7-10 days (Enanthate)
Half-life
~45 hours
6-10 weeks
Typical run
8-10 weeks
Controlled substance
Legal status
Research chemical
ProhibitedS1. Anabolic Agents
WADAmatch
ProhibitedS1. Anabolic Agents

Benefit side

What each is for

Shared goals carry both dots; a goal with one dot belongs to that side alone.

MasteronRAD-140
CuttingCosmeticBulkingRecomposition

Run for

Competition PrepUsed in the final weeks before competition to enhance muscle hardness and dryness.
Estrogen MaskingActs as a mild AI, helping to control estrogen-related side effects.
Aesthetic EnhancementImproves muscle definition and vascularity for a more polished look.

Documented upside

  • Enhanced muscle hardness and density
  • Increased dryness and vascularity
  • Anti-estrogenic properties
  • Increases free testosterone via SHBG binding
  • No water retention
+1 more on the full page

Run for

Lean Mass GainsProvides significant increases in lean muscle mass comparable to some steroids.
Strength IncreasesDramatic strength gains, often noticeable within the first two weeks.
RecompositionEffective for building muscle while losing fat simultaneously.

Documented upside

  • Significant lean mass gains
  • Dramatic strength increases
  • No water retention
  • No estrogen conversion
  • Oral administration (no injections)
+1 more on the full page

The downsides

Side effects, aligned

Each entry's documented side effects, sorted onto the same body systems so the gaps and the overlaps are visible. Tap any effect for the detail.

MasteronRAD-140

None documented

Liver

None documented

Heart
Hair, skin & prostate

None documented

None documented

Mood, sleep & CNS

None documented

Suppression & fertility

None documented

Other documented effects

The exit

Hormonal fallout & recovery

What each does to your own hormone axis while on, and what leaving it costs.

MasteronRAD-140
moderate
HPTA suppression
severe
none
Aromatization
none
none
Liver toxicity
moderate
high
Hair-loss risk
moderate
Yes
DHT-derived
No
No
19-nor / progestogenic
No
Required
PCT
Required
Semi-permanent
What sticks
Semi-permanent

Masteron

Standard SERM PCT (e.g. Nolvadex 40/40/20/20). Start timing by ester: ~2 weeks after the last Enanthate pin, ~3-4 days after Propionate. Masteron does not aromatize, so estrogen rebound is not the concern; restoring natural testosterone is.

RAD-140

PCT with Enclomiphene (12.5-25mg daily) or Nolvadex (20/20/10/10mg) for 4 weeks is recommended.

Read-out

How they separate

  1. 01

    Enhancement

    They land at almost the same point on the natty scale (6/10 vs 6/10): a similar distance beyond natural.

  2. 02

    Side-effect bill

    RAD-140's documented side-effect severity is heavier (3.5/5 vs 2.5/5). The body-load fingerprint above shows where that weight actually lands.

  3. 03

    Body load

    The widest gap at typical protocols is liver strain (RAD-140 5.5/10 vs 0/10), then blood thickness (Masteron 5.5/10 vs 2.8/10).

  4. 04

    Coming off

    Both suppress natural testosterone production: coming off either means a recovery phase, not just stopping.

  5. 05

    Logistics

    Masteron runs as injectable (im), RAD-140 as oral; typical runs are 6-10 weeks vs 8-10 weeks.

  6. 06

    Tested athletes

    Both are WADA-prohibited: neither belongs anywhere near tested competition.

Generated from each entry's data file. Descriptive, not a recommendation; nothing here is medical advice.

Full breakdownMasteron→Full breakdownRAD-140→

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