I got my bloodwork back getting tested to see how well the K4L Whitebox 400IU HGH worked for me, and I'm pleased with the results. It definitely wasn't bunk.

Product: HGH Whitebox | 400 IU, ordered January 16, 2026
Same batch used consistently throughout the testing period.

Dosage & Usage Context
Dosage: 3 IU per day at night before bed
Duration Prior to Bloodwork: ~6+ weeks of consistent use, been at 3IU since mid-Febrary after titrating up from a lower starting dose.

Diet & Caloric Context
Calories: Targeting a slightly below maintenance intake at ~2200 cals / day to get my BF% down gradually
Training: 5x/week running a PPL routine

Other Pharmacology / Compounds in Use:
Testosterone Cypionate: 250 mg/week (M/Thurs injections)
hCG: 500 IU every other day
Retatrutide: 3.5mg / week

Bloodwork Results:
IGF-1: now 325 ng/mL, baseline was 170
IGF-1 Z-Score: now +1.9, baseline was +0.4