How to Track Peptide Doses Properly: A Practical Guide
If you're three weeks into a peptide protocol and your only record is a Notes app entry that reads "BPC 250 mcg today, missed yesterday(?)" — you're already in trouble. Not because tracking is hard, but because peptide protocols accumulate complexity faster than ad-hoc tracking can handle.
What a usable peptide log actually contains
The minimum viable log for any peptide protocol has six fields per dose:
- Compound — which peptide
- Dose — in mcg or mg, not in "syringe units" alone
- Route — subcutaneous, intramuscular, intranasal, topical
- Site — anatomical site for injectable; nostril for intranasal
- Time — exact timestamp, not "morning"
- Notes — anything off about how it felt going in or after
Spreadsheets handle the first five fine. They fall apart on the sixth, on cycle visualization, and on injection site rotation — which is the failure mode that bites everyone running BPC-157 or TB-500 long enough.
Why injection site rotation matters more than you think
Subcutaneous injections in the same site repeatedly cause lipohypertrophy (lumps of altered fat tissue), uneven absorption, and increased pain over time. The pragmatic rule: don't repeat a site within 14 days, ideally rotate across at least 6 distinct anatomical zones.
Reconstitution math is where mistakes happen
Peptide doses are calculated, not pre-measured. Reconstitution math example: 5 mg BPC-157 in 2 ml BAC water = 2500 mcg/ml = 25 mcg per "unit" on a U-100 syringe. A 250 mcg dose is therefore 10 units. People doing this math on the back of an envelope every time make mistakes. Use our free calculator instead.
What changes at the 4-week mark
The first month of any peptide protocol is when ad-hoc tracking works fine. From week 4 onwards, the routine takes over: doses blur together, you forget which day of a 5-on / 2-off cycle you're on, and your "subjective recovery rating" memory becomes useless because you're recalling rather than recording in the moment.
Why we built Peptra around this
Peptra exists because every functional peptide tracker we've seen treats this as "fitness app + a peptides field." It isn't. The data model has to handle reconstitution math, multi-route logging, site rotation history, cycle phase awareness, and stack co-administration as first-class concepts, not bolt-ons.