For micro-dosing, the concentration you create determines measurement precision
Third-party HPLC and mass spectrometry tested
Genetic factors: Some insulin resistance has strong genetic components that may be less responsive to any intervention

Major Ingredients Water, Ethylhexyl Methoxycinnamate, Butylene Glycol, Ethylhexyl Salicylate, Octocrylene, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Butyl Methoxydibenzoylmethane, Dipropylene Glycol, Niacinamide (20,000ppm), Squalane, C14-22 Alcohols, 1,2-Hexanediol, Polyglyceryl-2 Stearate, Propanediol, Hydroxyacetophenone, Glyceryl Stearate, Stearyl Alcohol, C12-20 Alkyl Glucoside, Tromethamine, Centella Asiatica Extract (1,510ppm), Carbomer, Melaleuca Alternifolia (Tea Tree) Extract, Hippophae Rhamnoides Fruit Extract, Vitis Vinifera (Grape) Fruit Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Uncaria Sinensis Extract, Glycerin, Adenosine, Disodium EDTA, Oryza Sativa (Rice) Bran Extract, Hydrogenated Phosphatidylcholine, Caprylic/Capric Triglyceride, Sodium Hyaluronate, Glucose, Hydrolyzed Collagen, Sucrose Stearate, Glutathione (10ppm), Cyclodextrin, Cetearyl Alcohol, Caprylyl Glycol, Beta-Glucan, Caprylhydroxamic Acid, Ethylhexylglycerin, Asiatic Acid, Asiaticoside, Madecassic Acid, Madecassoside, Tropolone, Hyaluronic Acid, Potassium Hyaluronate Ingredients subject to change at manufacturer's discretion

Barriers strongest argument is local GI exposurenot proven systemic absorption Barrier says its 500 mcg BPC-GI tablet is precision-pressed to dissolve throughout the approximately 20-foot GI tract
Persistent diarrhea beyond 2-3 weeks is less common and warrants clinical evaluation