I just read more about Revita and checked ingredient list. It seems that the only ingredient that is really important is ketoconazole which I cen get in Nizoral shampoo for $14. Revita also have caffeine, Bioton and a little bit of Zinc but dont know if they really make any big difference with hair loss.
Revita Ingredients: Water, Cocamidopropyl Betaine, Coco-Glucoside, Caffeine, Ketoconazole, Pyrus Malus (Apple) Seed Extract, Aspalathus Linearis Leaf Extract (Roobios), Apple Polyphenol (Procyanidin B-1), Carnitine HCI, Ornitine HCI, Acetyl Cysteine, Dimethyl Sulfone (MSM), Taurine, Emu Oil, Biotin, Copper Peptides, Aloe Barbadensis Leaf Juice (Spray Dried), Glycereth-7, Glycerin, Polyquaternium 10, Glycol Stearate, Menthyl Lactate (Menthol Derivative), EUK-134 (SOD Mimic/Spin Trap), PEG-150 Pentaerythrityl Tetrastearate, PEG-6 Caprylic/Capric Glycerides, Menthol, Zinc PCA, Citric Acid, Sodium Chloride, Methylchloroisothiazolinone, Methylisothiazolinone, Tetrasodium EDTA, Red 40, Blue 1
It doesn't say how much 1% of Ketoconazole