Comparison
BPC-157 vs Spermidine
Side-by-side of BPC-157 and Spermidine. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
BPC-157
BPC-157 peptide profile: pentadecapeptide body protection compound 157. Preclinical data on tendon, gut healing, recovery. No human RCTs as of 2026.
Spermidine
Spermidine supplement benefits cover autophagy induction, longevity signals, and cognition. Wheat germ extract data, doses, and human trials reviewed.
Effects at a glance
BPC-157
- •Preclinical models show accelerated tendon-to-bone and ligament healing after surgical or chemical injury
- •Rodent studies report mucosal protection and faster recovery from NSAID-induced and colitis-induced gut damage
- •Anecdotal human protocols use 250 to 500 mcg twice daily subcutaneously near the injury site
- •No completed phase II or III human RCTs as of 2026, so efficacy and long-term safety remain unestablished
- •Banned by WADA since 2022 under the S0 non-approved substances category for competitive athletes
- •Theoretical angiogenic concern means avoidance is prudent in active malignancy until human data exists
Spermidine
- •Endogenous polyamine that induces autophagy via EP300 acetyltransferase inhibition and TFEB activation
- •Concentrated in wheat germ, soybeans, aged cheese, and mushrooms; ~10 to 15 mg/day in Mediterranean diets
- •Eisenberg 2016 reported dietary spermidine extended mouse lifespan and improved cardiac function
- •Wirth 2018 pilot (n=28) reported cognitive signal at 0.9 mg/day in older adults at risk for dementia
- •Larger Wirth 2019 follow-up (n=85) did not replicate the memory benefit at 12 months
- •Generally regarded as safe at supplemental doses; food-source position is reassuring
Side-by-side
| Attribute | BPC-157 | Spermidine |
|---|---|---|
| Category | peptide | supplement |
| Also known as | Body Protection Compound-157, Pentadecapeptide BPC-157 | spermidine trihydrochloride, wheat-germ-extract spermidine |
| Half-life (hr) ↗ | 4 | 6 |
| Typical dose (mg) ↗ | 0.25 | 1.2 |
| Dosing frequency | daily (anecdotal protocols) | daily, typically morning with food |
| Routes | subcutaneous, intramuscular, oral | oral |
| Onset (hr) | - | 2 |
| Peak (hr) | - | 4 |
| Molecular weight | - | 145.25 |
| Molecular formula | C62H98N16O22 | C7H19N3 |
| Mechanism | Proposed upregulation of VEGFR2 and nitric oxide pathways, modulation of growth-hormone receptor expression, and stabilization of gut-brain axis signaling. Mechanism remains largely preclinical. | Induces macroautophagy via inhibition of EP300 histone acetyltransferase and activation of TFEB-mediated lysosomal biogenesis. Substrate for hypusination of eIF5A, required for translation of mitochondrial respiration proteins. |
| Legal status | Not FDA approved; research-use-only grey market; banned by WADA (2022) | OTC dietary supplement (wheat-germ extract has GRAS status in US) |
| WADA status | banned | allowed |
| DEA / Rx | Not FDA approved; not scheduled; research-chemical status | OTC supplement (not scheduled) |
| Pregnancy | Insufficient data | Insufficient data; not routinely recommended at supplemental doses |
| CAS | 137525-51-0 | 124-20-9 |
| PubChem CID | 9941957 | 1102 |
| Wikidata | Q4835418 | Q411089 |
Safety profile
BPC-157
Common side effects
- injection-site irritation
- nausea
- headache (anecdotal)
Contraindications
- pregnancy
- active malignancy (theoretical angiogenic concern)
- no established safety profile in humans
Spermidine
Common side effects
- mild GI upset (rare)
- headache (rare)
Contraindications
- wheat-germ allergy or celiac disease (for wheat-germ-extract products)
- active cancer (theoretical)
- pregnancy and lactation (insufficient data)
Interactions
- DFMO (difluoromethylornithine): competing polyamine metabolism; do not combine without oncology guidance(moderate)
Which Should You Take?
Spermidine comes out ahead for most readers on the criteria we weight: 2 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-A outcome catalogued. BPC-157 is the right call when one of the conditionals below applies.
- → If your priority is post-training recovery, pick BPC-157.
- → If your priority is gut barrier and microbiome health, pick BPC-157.
- → If your priority is healthspan extension, pick Spermidine.
- → If your priority is focus or working memory, pick Spermidine.
Edge case: If you want to avoid research-only / gray-market sourcing, Spermidine is the more accessible choice.
Default choice: Spermidine. Lower friction to source, a Tier-A evidence outcome catalogued, and broader goal coverage. Reach for BPC-157 only if your priority sits squarely in the goals it owns above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between BPC-157 and Spermidine?
BPC-157 and Spermidine differ in category (peptide vs supplement), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, BPC-157 or Spermidine?
BPC-157 half-life is 4 hours; Spermidine half-life is 6 hours.
Can you stack BPC-157 with Spermidine?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper