Understand the source comparison
VIP Blood Work Labs Check Before After: Panel Comparison
IGF-1 (ng/mL) 150–250 (age-dependent) +40–80 ng/mL for MK 677; +20–40 for CJC/Ipa Compound responsiveness and GH axis function <20 ng/mL increase suggests protocol failure or GH resistance IGF-1 must be drawn fasted and at same time of day both draws to contro
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This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- IGF-1 (ng/mL)
- 150–250 (age-dependent)
- +40–80 ng/mL for MK 677; +20–40 for CJC/Ipa
- Compound responsiveness and GH axis function
- <20 ng/mL increase suggests protocol failure or GH resistance
- IGF-1 must be drawn fasted and at same time of day both draws to control for diurnal variation
- Free Testosterone (pg/mL)
- 8–25 (male); 0.3–1.9 (female)
- Minimal change expected unless stacking androgens
- Rules out hypogonadism affecting anabolic response
- Decline >15% warrants endocrine evaluation
- Testosterone drawn before 10am controls for morning peak
- TSH (mIU/L)
- 0.5–2.5 (functional range)
- No change expected; elevation suggests thyroid suppression
- Thyroid function modulates GH receptor sensitivity
- TSH >3.0 or rising trend requires thyroid workup
- Free T3 more sensitive than TSH for detecting subclinical hypothyroidism
- Fasting Glucose (mg/dL)
- 70–99
- May increase 5–10 mg/dL transiently on MK 677
- Insulin sensitivity and glucose metabolism
- Fasting glucose >110 or HbA1c increase >0.3% stops protocol
- MK 677 elevates blood sugar in first 8 weeks; typically normalizes by week 12
- ALT/AST (U/L)
- <35
- No change expected; elevation indicates hepatotoxicity
- Liver enzyme stability during compound exposure
- ALT or AST >50 warrants immediate cessation
- Oral compounds stress liver more than injectable peptides
- Creatinine (mg/dL)
- 0.7–1.3
- No change expected
- Kidney function baseline and monitoring
- Rising creatinine >0.2 mg/dL suggests renal stress
- Elevated creatinine can reflect dehydration or high protein intake, not just kidney damage