Recent reports indicate that acne may also result from changes in the gut microbiota (162164)
One study from 2007 examined the effect of GHK-Cu and red-light therapy (low-level laser therapy) on skin repair and healing
sodium cocoyl isethionate, stearic acid, disodium lauryl sulfosuccinate, zea mays (corn), glycerin, glyceryl stearate, citric acid, sodium chloride, aqua, kojic acid di palmitate, alpha arbutin, disodium EDTA, L-glutathione, ascorbic acid (vitamin C), tocopheryl acetate (vitamin E)
Looking for some other ideas
If you decide to supplement, look for liposomal formats
If you proceed with research-grade BPC-157, source it from a verified supplier with third-party purity testing (HPLC and mass spectrometry), use sterile bacteriostatic water for reconstitution, and follow aseptic technique for every injection