It seems like Zest is trying to get customers hopped up on caffeine, so they dont eat food (or have the twitchiness to move around more?)
Lobanov, M., Bogatyreva, N
Peptide Vials (GHK-Cu, 50 mg each): 5 days/week (1.0-2.0 mg/day): 8 weeks (~50 mg total): 1 vial 12 weeks (~90 mg total): 2 vials 16 weeks (~130 mg total): 3 vials 3 times/week (2 mg each): 8 weeks (~48 mg total): 1 vial 12 weeks (~72 mg total): 2 vials 16 weeks (~96 mg total): 2 vials Insulin Syringes (U-100, 29-31 gauge): 5 days/week: Per week: 5 syringes 8 weeks: 40 syringes 12 weeks: 60 syringes 16 weeks: 80 syringes 3 times/week: Per week: 3 syringes 8 weeks: 24 syringes 12 weeks: 36 syringes 16 weeks: 48 syringes Sterile or Bacteriostatic Water (10 mL bottles): Use 3.0 mL per vial for the displayed calculation
Research has linked L-carnitine to possible benefits for Alzheimers disease, liver-related brain dysfunction, memory issues, and nerve damage, with some studies even suggesting it could aid conditions like carpal tunnel syndrome
And your pace may be slower if you take longer to go up in doses