A capsule that lists "BPC-157 500 mcg" with no excipient detail and no formulation description is almost certainly a plain peptide in powder form with no oral bioavailability advantage over reconstituting it and drinking the solution (which is also negligible systemically)
NAD+ precursors can affect cellular metabolism
Epitalon (5CC) : Associated with anti-aging effects

Combination Strategies for Enhanced Efficacy: For Inflammation: ALC + PEA 1,200 mg/day (demonstrated synergy in fibromyalgia)[5] ALC + Omega-3 fatty acids 2-4 g/day ALC + Curcumin 500-1,000 mg/day For Neuropathic Pain: ALC + Alpha-lipoic acid 600 mg/day (complementary metabolic support)[6] ALC + B vitamins (B1, B6, B12) for neurotrophic effects ALC + PEA for enhanced analgesic effect For Central Sensitization: ALC + PEA 1,200 mg/day (strong synergy demonstrated)[5] ALC + Magnesium 400-600 mg/day (complementary glutamate modulation) ALC + Low-dose naltrexone (complementary anti-sensitization mechanisms) For Oxidative Stress: ALC + Alpha-lipoic acid 600 mg/day ALC + N-acetylcysteine 600-1,200 mg/day ALC + CoQ10 100-300 mg/day For Mitochondrial Dysfunction: ALC + CoQ10 100-300 mg/day (complementary electron transport chain support) ALC + Alpha-lipoic acid 600 mg/day ALC + B vitamins (cofactors for mitochondrial enzymes) DOSING OVERVIEW Bioavailability: Oral bioavailability is low (14-18%) due to saturable intestinal absorption and extensive first-pass metabolism.[14][15] Despite low bioavailability, clinical efficacy is demonstrated at therapeutic doses

The dissolved glucose was then orally consumed by the participants and blood was subsequently sampled at 5, 10, 15, 30, 60, 90, 120, and 180 minutes