In vitro studies commonly use GHK-Cu in the nanomolar to low micromolar range (1100 nM for signalling assays, up to 10 M for cell culture models)
Eat sulfur-rich foods like leafy greens, asparagus, onions, garlic, and eggs Liver Cruciferous vegetables like broccoli, kale, turnip greens, cabbage, Brussel sprouts, cauliflower Foods rich in selenium, like Brazil nuts, grass-fed beef, eggs, and brown rice Vitamin C-rich foods like oranges, citrus fruits, strawberries, and tomatoes Foods that support methylation (foods high in folate, B-12, B-6): bananas, cantaloupe, papaya, sunflower seeds, avocados, leafy greens, organ meats, fish, poultry, and eggs Cinnamon, turmeric, and cardamom In addition to consuming a diet rich in fruits, vegetables, and whole proteins, you can support glutathione levels by managing stress, exercising, and getting adequate sleep: *Aim for 8-10 hours of restful sleep per night - optimize sleep by reducing screen time/blue lights up to 2 hours before bedtime

In this experimental platform, the anti-gravity calf-muscle group (gastrocnemius (Gas), plantaris (Pla), and soleus (Sol) muscles) and shank muscles (tibialis anterior (TA) and extensor digitorum longus (EDL)) were collected from four experimental groups of 8-week-old C57BL/6J male mice: i) control (without any treatment), ii) 5-days suspension-disuse, iii) 3-days LASSS pre-administration (about 50 g in drinking water/g body weight/day) followed by 5-days suspension-disuse treatment without LASSS supplementation, and iv) 3-days GSSSG pre-administration followed by suspension-disuse treatment ( n = 3 mice per group)
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