What is the shelf life of the Fitness Acetyl L-Carnitine Powder

I wonder if they are safe.Here is the ingredients list: 1) Laneige water bank hydro essence Water / AQUA / EAU, PROPANEDIOL, HEXYLDECYL MYRISTOYL METHYLAMINOPROPIONATE, ISOSTEARYL NEOPENTANOATE, GLYCERIN, METHYL TRIMETHICONE, SEA WATER / MARIS AQUA / EAU DE MER, SACCHARIDE ISOMERATE, DIMETHICONE, POLYACRYLATE CROSSPOLYMER-6, TROMETHAMINE, DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER, BUTYLENE GLYCOL, GLYCERYL CAPRYLATE, CARBOMER, ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, DISODIUM EDTA, ETHYLHEXYLGLYCERIN, 1,2-HEXANEDIOL, FRAGRANCE / PARFUM, CHENOPODIUM QUINOA SEED EXTRACT, MAGNESIUM SULFATE, CALCIUM CHLORIDE, PHENOXYETHANOL, SODIUM CITRATE, CITRIC ACID, T-BUTYL ALCOHOL, BETA VULGARIS (BEET) ROOT EXTRACT / EXTRAIT DE RACINE DE BETTERAVE, MANGANESE SULFATE, ZINC SULFATE, BRASSICA OLERACEA ACEPHALA LEAF EXTRACT, LECITHIN, NASTURTIUM OFFICINALE EXTRACT, TOCOPHEROL, LEPIDIUM SATIVUM SPROUT EXTRACT, ASCORBYL GLUCOSIDE 2) Lancme Advanced Genifique Youth Activating Concentrate Aqua/Water/Eau, Bifida Ferment Lysate, Glycerin, Alcohol Denat., Dimethicone, Hydroxyethylpiperazine Ethane Sulfonic Acid, Ascorbyl Glucoside, Sodium Hyaluronate, Sodium Hydroxide, Sodium Benzoate, Phenoxyethanol, Adenosine, Faex Extract/Yeast Extract/Extrait De Levure, PEG-20 Methyl Glucose Sesquistearate, PEG-60 Hydrogenated Castor Oil, Salicyloyl Phytosphingosine, Ammonium Polyacryldimethyltauramide/Ammonium Polyacryloyldimethyl Taurate, Limonene, Xanthan Gum, Caprylyl Glycol, Disodium EDTA, Octyldodecanol, Citronellol, Parfum/Fragrance

I love diving deep into my biology and optimizing every aspect of my health
The placebo and NAC capsules looked identical
Efficacy in Diabetic Neuropathy: Systematic reviews demonstrate that ALC significantly reduces pain in diabetic peripheral neuropathy and enhances nerve conduction, suggesting its utility in nerve repair and pain relief (Veronese et al., 2017)
This comprehensive mechanism addresses appetite, energy expenditure, gastric function, and glucose homeostasis through distinct but complementary receptor systems, potentially explaining enhanced efficacy observed in combination approaches compared to monotherapies