Peptide Bloodwork Markers in South Africa: The Panel You Actually Need

You can't run a serious peptide protocol without bloodwork. Subjective feel is the noisiest possible outcome measure, and most of the things that go wrong on peptide protocols — lipid shifts, fasting-glucose drift, prolactin elevation, thyroid suppression — are invisible until you draw blood. Here's the practical guide to peptide bloodwork markers in SA.

The base panel (every protocol)

Regardless of which peptide you're running, this is the floor:

• Full blood count (FBC) — baseline and end-of-cycle
• U&E (urea, electrolytes, creatinine) — renal function
• LFT (liver function tests) — ALT, AST, GGT, bilirubin
• Fasting glucose + HbA1c — glucose homeostasis
• Lipid panel — total cholesterol, LDL, HDL, triglycerides
• hs-CRP — systemic inflammation marker

Add-on markers by peptide class

Growth-hormone secretagogues (CJC-1295, ipamorelin, tesamorelin, MK-677)

• IGF-1 — the primary downstream readout of GH stimulation¹
• IGFBP-3 — paired with IGF-1 for context
• Fasting insulin + glucose — these peptides can shift glucose handling
• Prolactin — particularly relevant for ipamorelin and ghrelin mimetics
• Cortisol (AM) — baseline plus mid-cycle

Healing peptides (BPC-157, TB-500, GHK-Cu)

• hs-CRP — primary outcome for inflammation-mediated effect
• ESR — slower-moving inflammation proxy
• Ferritin — confounded by inflammation; interpret with CRP

Metabolic peptides (semaglutide, tirzepatide, retatrutide)

• HbA1c + fasting glucose
• Lipid panel — expect favourable shifts
• LFT — monitor for hepatic stress
• Amylase + lipase if any abdominal symptoms²
• TSH — particularly with tirzepatide/retatrutide given the C-cell signal in rodent studies

Where to test in South Africa

South Africa is well-served. The three major private pathology networks all run the full panel above:

• Lancet Laboratories — nationwide, strong digital portal, drop-in centres in every major city
• Ampath — wide footprint, good IGF-1 turnaround, online results
• PathCare — particularly strong in the Western Cape, useful for Cape Town-based research

You will need a request form from a registered medical practitioner. In Cape Town this is usually handled through the same GP overseeing your protocol — one consult covers the script and the request form.

Cost expectations

Cash prices in 2026 sit roughly at: base panel R1,200–R1,800; IGF-1 alone R450–R650; full hormonal add-on (IGF-1, prolactin, cortisol, TSH) R1,500–R2,200. Medical-aid coverage varies; the diagnostic codes matter — your GP can help select codes that maximise the chance of reimbursement.

Timing

Draw fasted, in the morning, before the day's injection. For IGF-1 and cortisol, consistency of timing matters more than the absolute hour. Repeat at the end of washout, not end of dosing — what matters is what persists.