Comparison
RAD-140 vs YK-11
RAD-140: sheer anabolic potency and strength; YK-11: dry, recomposition-focused hardening with unique myostatin suppression.
RAD-140
Selective Androgen Receptor Modulator
YK-11
Steroidal SARM / Follistatin Inducer
Effectiveness Profile
At a Glance
| RAD-140 | YK-11 | |
|---|---|---|
| Type | SARM | SARM |
| Legal status | Research | Research |
| Half-life | ~44 hours | ~6–10 hours (estimated) |
| Preferred route | Oral | Oral |
| Dose frequency | once-daily | twice-daily |
| Beginner dose | 5–10 mg | 5–7.5 mg |
| Intermediate dose | 10–20 mg | 8–10 mg |
| Advanced dose | 20–30 mg | 10–15 mg |
| Cycle length | 6–12 wks | 6–8 wks |
| Bioavailability | 50% | — |
| Time to peak | 1.5h | 1.5h |
| Active duration | 48h | 10h |
| Storage | Room temperature, dry, away from light. Liquid suspensions stable for 12+ months. | Room temperature, dry, away from light |
| PCT required | Yes | Yes |
| Ancillaries required | Yes | Yes |
| Safe for women | No | No |
Verdict
RAD-140 wins for: maximal oral anabolic effect, sheer strength and lean mass gain, cleaner product sourcing (less mislabeling), more robust human anecdotal data, and better safety/tolerability at conservative doses (where LFTs are watched).
YK-11 wins for: hard recomposition and cosmetic 'dryness', unique synergy in stacks targeting myostatin inhibition (via follistatin upregulation), smaller scale lean gains with less water retention, contest-prep 'finisher' stacks, and a niche for DHT-driven 'hard' look when added atop base anabolics.
Pick A or B?
Pick RAD-140 if:
- You want maximal oral muscle gain without needles — as close as SARMs get to low-dose test.
- You're looking for a strength/power surge for a gym performance block.
- You're running your first SARM cycle and want predictable dosing, clearer sourcing, and a well-documented PCT protocol.
- You need a compound that avoids DHT conversion (hair stack is a priority, or you're finasteride-sensitive).
- You want a versatile SARM for bulking, recomp, or bridging between test cycles.
Pick YK-11 if:
- Your goal is a dry, hard, 'grainy' look for final recomposition or contest/vanity prep.
- You're already running a SARM or low-dose test base and want extra edge from myostatin inhibition (via follistatin boost).
- You tolerate DHT-like compounds well and want steroidal 'polish' without classic orals' water retention.
- You're stacking for a short, 6–8 week result where cosmetic outcome trumps scale-weight gain.
- You can source verified/certified YK-11 with a third-party COA and understand its suppressive and liver-toxic profile.
Where to Buy
Swiss Chems
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- RAD-140· Buy RAD-140 (Testolone), (10mg/capsule) 60 Capsules - SwissChems - Buy Best Quality Peptides, SARMS OnlineBuy RAD-140
- YK-11· Buy YK-11 (5mg/capsule), 60 Capsules - SwissChems - Buy Best Quality Peptides, SARMS OnlineBuy YK-11

NextChems
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- RAD-140· Testolone (RAD-140), 10mg - 60 capsules - Next ChemsBuy RAD-140
- RAD-140· RAD140 Solution, 20mg/ML - 50ML - Next ChemsBuy RAD-140
- YK-11· YK-11 Myostatin Inhibitor | Buy YK-11 5 mg caps | NEXTCHEMSBuy YK-11