Why Site Rotation Matters
Injecting the same site repeatedly causes lipodystrophy — hardened, fibrous tissue that absorbs compounds unpredictably. Rotating sites keeps absorption consistent and protects tissue health across extended research protocols.
⚠️ Research Use Only
All products sold by FenaLife are intended strictly for laboratory and academic research purposes. Not for human consumption, injection, or ingestion. These statements have not been evaluated by the FDA.
Subcutaneous Rotation Map
| Zone |
Sites Available |
Rest Period |
| Abdomen |
8 sites (4 per side, 2 inches from navel) |
72 hours minimum per site |
| Outer thigh |
4 sites (2 per leg, middle third) |
72 hours minimum per site |
| Upper arm |
2 sites (outer surface only) |
72 hours minimum per site |
| Total rotation |
14 SC sites |
Cycle takes 14+ days at once daily |
Building a Rotation Protocol
1
Map your sites on paper
Draw the body outline, number each site. Reference this map before every injection — do not rely on memory.
2
Work in a consistent direction
Left to right, top to bottom, or clockwise around the abdomen. Consistency prevents accidentally skipping sites.
3
Mark used sites
A small dot with a felt-tip pen lasts 24–48 hours and makes the rotation visible at a glance.
4
Rest reactive sites longer
If a site shows redness or a nodule, skip it for at least 5–7 days, not just 72 hours.
5
Review the map weekly
Look for patterns — repeated bruising or nodules in one zone point to a technique issue specific to that site.
Post-Injection Aftercare
Aftercare by Site Response
✅
Normal Site
Light pressure with dry cotton for 15 seconds. No rubbing. Cover with a small adhesive bandage if needed. Monitor for 30 minutes.
Redness or Warmth
Cold compress for 5–10 minutes. Document the reaction with date, site, and compound. Do not inject this site again until fully resolved.
Nodule or Raised Area
Do not massage. SC nodules disperse on their own in 24–72 hours. Massage pushes compound into unintended tissue layers.
Bruising
Firm pressure for 30 seconds immediately. Elevate the limb if practical. Log the site as temporarily retired from rotation.
⏱️ Monitoring Window
Observe the injection site for a minimum of 30 minutes post-injection during any new protocol. Note any systemic responses alongside local site reactions. Response patterns across sessions are diagnostically valuable — document everything.
Record Keeping for Research Validity
Injection logs are primary research data. An undocumented injection is an injection that did not happen as far as your protocol is concerned.
Injection Log — Minimum Data Fields
| Field |
What to Record |
| Date and time |
Exact — relevant for pharmacokinetic calculations |
| Compound and lot number |
Traces results back to specific batch if quality issues arise |
| Concentration and dose volume |
Both — catches unit conversion errors in review |
| Injection site |
Zone and specific location within zone |
| Route |
SC, IM, IP — confirm it matches protocol |
| Operator |
Who performed the injection |
| Site response at 30 min |
Normal, redness, swelling, nodule — grade consistently |
End-of-Session Protocol
1
Dispose of all sharps
Every needle into the sharps container before leaving the workspace.
2
Log the injection
Fill in every field while details are fresh. Do not reconstruct from memory hours later.
3
Store remaining solution
Cap the vial, return to refrigeration within 15 minutes of completing the injection.
4
Clean the workspace
IPA wipe of all surfaces. Dispose of swabs, packaging, and waste. Reset for the next session.
5
Update the rotation map
Mark the used site and confirm the next site in rotation is correctly identified.
Tissue Health Across Protocol Duration
Normal absorption — consistent rotationReliable compound effect across sessions
Early lipodystrophy — poor rotationReduced and variable absorption
Established lipodystrophy — no rotationUnpredictable — protocol data compromised
Recovered tissue — after adequate restAbsorption approaching baseline
Protocols running longer than 30 days benefit from a formal site audit at the midpoint. Photograph or diagram the injection zones and compare tissue texture across sites. Catching early lipodystrophy at day 30 preserves the data integrity of the back half of the protocol.
Conclusion
Site rotation, consistent aftercare, and detailed record keeping are the difference between a research protocol and a series of undocumented injections. FenaLife supplies research-grade peptides and reconstitution supplies for qualified laboratory use.
⚠️ Research Use Only
All products sold by FenaLife are intended strictly for laboratory and academic research purposes. Not for human consumption, injection, or ingestion. These statements have not been evaluated by the FDA.
