posted by tendon_tinker 29d ago

Tried peptides for four months and got nothing, here's what I think went wrong

I finished a 16-week run targeting a chronic left Achilles tendinopathy that’s been nagging me for over a year. Standard protocol people talk about here: BPC-157 at 250mcg twice daily, stacked with TB-500 at 2.5mg twice weekly for the first six weeks, then 2.5mg once a week after. Here is the data from my log: 1. Pain scores (VAS 0-10): Started at 5/10 morning stiffness. Ended at 5/10. Zero change. 2. Single-leg calf raise load: Stuck at 30kg isometric holds for 45s. Tried stepping up to eccentrics at week 8 and flared up immediately. 3. Rehab progress: No change in loading tolerance compared to baseline. My post-mortem on why this cycle fell flat: - Refrigeration shelf life: I reconstituted 10mg vials and kept them in the door of the fridge for nearly a month per vial. Warm door cycles probably degraded the compound. - Site specificity: Pinned exclusively sub-q in the abdomen. A lot of guys swear systemic is identical, but for distal tendons like the Achilles, local sub-q might matter more than I thought. - Loading stimulus: I got lazy with my PT progressions and relied on the pins to do the heavy lifting without forcing mechanical remodeling.

Measure it or it did not happen.

6 comments

Add a comment

ELee_DPTMaryland, Washington D.C. metro area9 points29d ago

You're overthinking the injection site. Sub-q in the abdomen vs near the ankle isn't why your Achilles didn't respond. The real issue is right in your log: you stayed stuck on 30kg isometric holds for eight weeks because you were scared of a flare. If you don't give the tendon a progressive mechanical loading stimulus to drive collagen realignment, no peptide on earth is going to rebuild that tissue for you.

Lost my career to a knee. Now I fix them.

PharmD_NadiaPhoenix, AZ6 points29d ago

Your fridge door suspicion is valid. Frequent temperature swings from opening the door will accelerate peptide degradation once reconstituted with BAC water, especially after 20+ days. Storing vials toward the back shelf away from light and temperature fluctuations helps maintain stability throughout your cycle.

If the vial looks cloudy, the answer is no.

DrBannock_IOPNEdinburgh, Scotland4 points29d ago

What did daily protein intake look like over those 16 weeks? If total energy availability was in a deficit or total protein was hovering under 1.6g/kg, you lacked the basic amino acid substrate for collagen synthesis. Pinning signaling compounds without adequate glycine and total protein is just burning money.

Nutrition is a performance variable.

MarlinaV_PNWSeattle, WA6 points29d ago

That's placebo mate if you think local sub-q near the ankle was the missing link. It's almost always lack of progressive load or under-recovering.

Own your outcome.

BCole_FSTHouston, Texas7 points29d ago

Spot on regarding the rehab loading. If movement habits and daily ankle dorsiflexion work aren't being adjusted, peptides just sit on top of bad mechanics.

Move well first. Everything else follows.

tendon_tinkerAustin, TX1 points29d ago

Fair pushback on the loading and protein. My diet was definitely hit or miss during travel weeks, and I held back on load progression out of habit. Resetting next month with heavy slow resistance and tighter vial storage.

Measure it or it did not happen.