Current transdermal data for GHK-Cu specifically are limited

The following are nutrients with antioxidant activity and the foods in which they are found: Broccoli, Brussels sprouts, cantaloupe, cauliflower, grapefruit, leafy greens (turnip, mustard, beet, collards), honeydew, kale, kiwi, lemon, orange, papaya, snow peas, strawberries, sweet potato, tomatoes, and bell peppers (all colors) Vitamin C: Almonds, avocado, Swiss chard, leafy greens (beet, mustard, turnip), peanuts, red peppers, spinach (boiled), and sunflower seeds Vitamin E: Apricots, asparagus, beets, broccoli, cantaloupe, carrots, bell peppers, kale, mangos, turnip and collard greens, oranges, peaches, pink grapefruit, pumpkin, winter squash, spinach, sweet potato, tangerines, tomatoes, and watermelon Carotenoids including beta-carotene and lycopene: Brazil nuts, fish, shellfish, beef, poultry, barley, brown rice Selenium: Beef, poultry, oysters, shrimp, sesame seeds, pumpkin seeds, chickpeas, lentils, cashews, fortified cereals Zinc: Quercetin (apples, red wine, onions), catechins (tea, cocoa, berries), resveratrol (red and white wine, grapes, peanuts, berries), coumaric acid (spices, berries), anthocyanins (blueberries, strawberries) Phenolic compounds: Bottom line on antioxidants and disease prevention Excessive free radicals contribute to chronic diseases including cancer, heart disease, cognitive decline, and vision loss

Both are sterile water preparations, but they serve different purposes: Sterile water without preservative is single-use by design once the seal is broken, the sterility is compromised because there's no preservative to resist contamination
People with symptoms usually become ill 1 to 4 weeks after the bite, or 1 to 9 weeks after transfusion of contaminated blood products