Comparison
Retatrutide vs SLU-PP-332
Triple agonist vs. 'exercise in a vial' — fat loss by eating less or burning more?
This page contains affiliate links to compounds sold strictly for laboratory research use only. We may earn a commission on qualifying purchases at no additional cost to you. See our affiliate policy.
Retatrutide
GLP-1 / GIP / Glucagon Triple Agonist
Metabolic Peptidet½ ~6 days
SLU-PP-332
Pan-ERR Agonist (ERRα/β/γ)
Metabolic Peptidet½ Not formally characterized; b.i.d. dosing implies several hours
Effectiveness Profile
Retatrutide
SLU-PP-332
At a Glance
| Retatrutide | SLU-PP-332 | |
|---|---|---|
| Type | Metabolic Peptide | Metabolic Peptide |
| Legal status | Research | Research |
| Half-life | ~6 days | Not formally characterized; b.i.d. dosing implies several hours |
| Preferred route | SubQ | SubQ |
| Dose frequency | weekly | twice-daily |
| Beginner dose | 0.5–1 mg | 50–100 mg |
| Intermediate dose | 2–4 mg | 100–300 mg |
| Advanced dose | 6–8 mg | 300–800 mg |
| Cycle length | 12–24 wks | 4–12 wks |
| Time to peak | 48h | — |
| Active duration | 168h | — |
| Storage | Lyophilized: 2–8°C. Reconstituted: refrigerated, stable ~30 days. | 2–8°C refrigerated; protect from light |
| PCT required | No | No |
| Ancillaries required | No | No |
| Safe for women | Yes | Yes |
Verdict
Retatrutide wins for:
- Sheer magnitude and speed of fat loss (especially visceral/liver fat)
- Potency per milligram — you get huge results with relatively low dosing (1–12 mg/week)
- Human clinical data, established protocols, and predictable side effect profile
- Sustainable, programmable appetite suppression (diet compliance weapon)
- Once-weekly injection, easier for most to stick with
SLU-PP-332 wins for:
- Preserving and even enhancing endurance capacity — no performance hit, unlike GLP-1 class
- Avoiding GI and satiety-related side effects (no nausea, no slowed gastric emptying, no appetite crash)
- Orally bioavailable, daily capsule/suspension, no needles required
- True "metabolic rewiring"—cranking up fat oxidation and mitochondrial genes like a hard cardio block, without a stim or CNS load
- Stacks extremely well with other agents for synergistic fat loss, with minimal overlap in side effect mechanism
Pick A or B?
Pick Retatrutide if:
- You need rapid, clinically-proven fat loss (including stubborn visceral or liver fat)
- Appetite suppression and caloric control are your limiting factors
- Rebounding off a blast or oral-heavy phase, and want to strip off gained fat while preserving lean mass
- You want established titration schedules and human data to guide dosing
- You don't mind weekly injections and want a set-and-forget protocol
Pick SLU-PP-332 if:
- You want to boost fat burning and mitochondrial capacity without touching appetite or satiety
- You want something oral with no GI/nausea sides and virtually no impact on training drive
- You're stacking for a non-stimulant, non-CNS fat-loss regimen (with cardarine, MOTS-c, etc.)
- You have hit a plateau on conventional agents (GLP-1, AICAR, DNP) and want off-label/experimental
- You're hyper-sensitive to the side effects of the GLP-1 class or have contraindications
Where to Buy

Real Peptides
Ships from USLogin Required
Affiliate link — we may earn a commission at no cost to you.
Use code-20%
BioMogging20- Retatrutide· Trinity-X™ (GLP-3RT)Buy Retatrutide
- SLU-PP-332· SLU-PP-332 Capsules (SLOOP)Buy SLU-PP-332
Swiss Chems
Ships from US
Affiliate link — we may earn a commission at no cost to you.
Use code-10%
BioMogging- SLU-PP-332· Buy SLU-PP-332 (100mg/capsule), 60 Capsules - SwissChems - Buy Best Quality Peptides, SARMS OnlineBuy SLU-PP-332
This comparison is presented for informational and educational purposes only. The compounds described may be research chemicals, prescription-only, or regulated substances in your jurisdiction. Consult a qualified medical professional before using any compound. This is not medical advice.