It is available in tablets and is a compound of hydrogen peroxide with urea. C hair upon contact urea and humidifies it promotes swelling, so that the action of the hydrogen peroxide increases dramatically.
For the preparation of active solution only need to use plastic or china. Crush tablet gidroperita and pour a tablespoon of warm water. When the powder is dissolved, add a little liquid soap. It is necessary to form a foam, which can be easily applied to the skin surface and held her.
Then add a spoonful of ammonia concentration of 10%. Well all stir, then carry out test for allergies. To do this, apply a little mixture with a cotton swab on the back of your wrist or on the inner region of the elbow. If you see a strong redness and swelling, the continuation of the procedure will have to give clarification and to find other, more benign methods.
With a slight redness may be performed lighten hair gidroperita without harm. Apply foam for 15-20 minutes, thus can be unpleasant sensations - tingling, burning. After rinse off any active substance with cold water and moisten the skin with any nourishing cream.
Lightening hair gidroperita can only be done on hands and feet, for the delicate skin above the upper lip, use proven cosmetics.