1 Cleanse your skin as usual – morning and/or evening 2 Apply 2-3 drops of Vitamin B3 Blemish Rescue Serum on the fingertips of one hand, rub fingertips of both hands together and then apply to the affected area or entire face. 3 Apply your favourite moisturisers and make-up as usual Note: if using multiple serums, layer them thinnest to thickest for best absorption