Example: Reddit injury-recovery peptide stack
6 weeks into recovering from a partial supraspinatus tear. Current peptide + supplement stack: - BPC-157 250mcg subQ near the injury, 2x/day - TB-500 (TB4-Frag) 2mg subQ once/week - Collagen 25g + Vitamin C 500mg, AM - Creatine 5g/day - Magnesium glycinate 400mg, PM - Whey protein to hit ~1g/lb - 2x/wk PT, light eccentrics No bloodwork, just functional benchmarks (overhead pain-free range).
A reasonable, narrowly-scoped tendon-recovery stack — but the load-bearing intervention is the PT and eccentrics, not the peptides. BPC-157 and TB-500 lack human RCT evidence, and the user has no bloodwork or sourcing notes. As a longevity stack, this is irrelevant; as a recovery stack, it's mostly creatine, protein, and magnesium doing the work.
| Goal | Score | Grade | Weight | Why |
|---|---|---|---|---|
| Longevity | 50 | F | 5% | No interventions targeting healthspan; peptides are short-course. |
| Cognition | 55 | F | 5% | Magnesium and improved sleep marginally support focus; nothing nootropic. |
| Sleep & recovery | 72 | C- | 50% | Magnesium glycinate, creatine, and adequate protein form a defensible recovery base; peptide contribution is uncertain. |
| Energy & metabolism | 55 | F | 10% | Creatine and protein help, but no metabolic-targeted intervention. |
| Body recomposition | 70 | C- | 30% | 1g/lb protein and creatine are the highest-yield levers here; peptides may help connective tissue but won't drive recomp. |
Ingredients (7)
BPC-157
- Dose
- 250mcg subQ, 2x/day near injury site · AM and PM
- Mechanism
- Pentadecapeptide derived from a gastric protein; preclinical work suggests effects on angiogenesis, fibroblast migration, and growth factor signaling. No published human RCTs.
- Take
- Common research-peptide dosing range (200–500mcg/day). Local subQ injection near injury is the typical 'site-targeted' protocol enthusiasts use, though human evidence remains anecdotal. Sourcing matters — research-peptide vendors vary wildly in purity.
TB-500
- Dose
- 2mg subQ once weekly · weekly
- Mechanism
- Synthetic fragment of thymosin beta-4; preclinical evidence for actin-binding effects on cell motility and tissue repair. No human trials in this indication.
- Take
- Within typical 'loading phase' range used in enthusiast protocols (2–5mg/week for 4–8 weeks). Note: research-vendor TB-500 is usually a synthetic fragment, not full thymosin beta-4; potency claims should be taken with skepticism.
Collagen peptides
- Dose
- 25g/day with 500mg vitamin C · AM, ~30min before PT session
- Mechanism
- Provides glycine, proline, and hydroxyproline as substrates for connective tissue collagen synthesis; vitamin C is a cofactor for prolyl hydroxylase.
- Take
- Solid protocol — Shaw 2017 and follow-on trials suggest 15–25g collagen + vitamin C 30–60min before mechanical loading may improve tendon collagen synthesis. This timing is correct.
Creatine monohydrate
- Dose
- 5g/day · any time
- Mechanism
- Increases phosphocreatine stores; supports ATP regeneration in high-intensity work and may modestly support muscle protein synthesis and cognitive function.
- Take
- The standard 5g/day, no need for loading. Among the highest-evidence supplements for both performance and recovery. This is the cheapest, most-evidence-based ingredient in the stack.
Magnesium glycinate
- Dose
- 400mg elemental, evening · PM
- Mechanism
- Magnesium is a cofactor in hundreds of enzymatic reactions; the glycine carrier may support sleep onset via NMDA modulation and core body temperature regulation.
- Take
- Reasonable dose; magnesium glycinate is well-tolerated and the glycine fraction has its own mild GABAergic / sleep-supporting effect. Useful given the user's sleep-recovery emphasis.
Whey protein
- Dose
- to total ~1g/lb bodyweight/day · around training
- Mechanism
- Complete protein source rich in leucine, the primary trigger for mTORC1-mediated muscle protein synthesis.
- Take
- Solid target. 1g/lb bodyweight is at the upper end of evidence-supported intake for muscle protein synthesis but provides margin for recovery. Whey is just convenient packaging for leucine-rich complete protein.
Physical therapy + eccentrics
- Dose
- 2x/week structured PT · twice weekly
- Mechanism
- Mechanotransduction: progressive eccentric loading stimulates tenocyte remodeling and collagen alignment along lines of force.
- Take
- This is the actual load-bearing intervention. Eccentric loading is the most-evidence-supported tendinopathy treatment we have. The stack would still work without the peptides; it would not work without this.
Risks & interactions
- Unverified research-peptide sourcinghigh
BPC-157 and TB-500 are not FDA-approved for human use and are sold as 'research chemicals' with widely varying purity. Endotoxin contamination, mislabeled doses, and incorrect peptide sequences are documented in independent third-party testing. Without HPLC certificate of analysis from the vendor, the user has no idea what they're injecting.
- No bloodwork pre/post peptide usemedium
Even short-course peptide use should be book-ended with basic labs (CBC, CMP, lipid panel) given the pro-angiogenic mechanism of action. The user explicitly says they're tracking 'functional benchmarks only' — that's an information gap, not a feature.
- Sleep environment, training load not addressedlow
For an injury recovery stack, the highest-yield variables — sleep duration/quality, training volume, and total energy intake — aren't mentioned. The supplement stack matters far less than these.
Estimated cost
Research-peptide vendor pricing for BPC-157 and TB-500 (~$30–80/mo combined). Creatine, whey, magnesium, collagen at typical retail (~$60–120). PT cost not included.