Quick Answer. EstÃ©e Lauder Advanced Night Repair is a high-performance anti-aging face serum that, according to EstÃ©e Lauder, fights the signs of aging including dryness, dehydration, wrinkles, lines, dullness and discoloration.
A megajoule is 1/3.6 of a kilowatt-hour so it costs about $0.05.
Please look at Wikipedia for a discussion of units. Briefly, 1 Joule is the energy of a 1 Kilogram mass moving with a speed of 1 meter/second (1 J = 1 Kg * (1 m/s) 2). In particle physics units, it is about 6*10 18 electron volts, i.e., 6*10 6 TeV.