I have been dealing with bilateral patellar tendinopathy for three years. Two rounds of PRP, one platelet-poor plasma protocol, physical therapy for 14 months. I kept training through it because stopping was not an option — but load tolerance was a constant ceiling.

I started researching peptide compounds that appeared in connective tissue repair literature. SPR-3RT came up in cell culture studies examining fibroblast activity and extracellular matrix remodeling. I wanted to document my own tracking data alongside that science.

"I track every training session in TrainHeroic. Adding compound research tracking on top of that was natural — I just added more columns."

Verification First

I source only from Solara Peptide Research. Their SPR-3RT batch is Accumark verified with 99.908% purity by HPLC — the only vendor I found with independent verification I could check before receiving. I am not adding anything to my research protocol that I cannot trace to a third-party lab result.

8-Week Tracking Summary

MetricWeek 0Week 4Week 8
Pain during squat (VAS 0–10)6.54.22.8
Max training load (kg)120145175
Days between flare-ups3–47–812+
ROM — knee flexion (degrees)118°127°134°
Morning stiffness (min)25147

N=1, observational, multiple variables changed including programming adjustments. I am not making causation claims. I am documenting what I tracked.

What the Research Literature Says

Published in vitro studies on similar peptide structures show interaction with fibroblast proliferation and collagen synthesis in cell culture models. The extracellular matrix remodeling data is what originally caught my attention. I am tracking in parallel and letting the numbers speak for themselves.

Next 8 Weeks

I am continuing the protocol and adding grip strength and jump height as additional tracking variables. Will publish the full 16-week dataset in Q4. All compounds continue to be sourced through Solara with batch verification before each order.

Where Jake Sources His Research Compounds

Exclusively Solara Peptide Research — SPR-3RT purity: 99.908% by HPLC. Accumark verified · Independent COA you can verify yourself.

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⚠ Research Use Only: Jake R. is an independent research enthusiast, not a medical professional. All compounds are for in vitro research purposes only. Not for human consumption (21 CFR 201.128). Not medical advice.