The use of Rausch–Amaranth Repair Serum for Damaged Hair is highly recommended for those who suffer from excessively dry and damaged hair. This serum contains a natural extract from the leaves of the Amaranth plant which is an important source of essential fatty acids. The fatty acids are very effective in repairing the damage caused by heat and chemicals to the hair shafts. The use of this serum for damaged hair also provides a protective layer that helps to prevent further damage. The Rausch–Amaranth Repair Serum for Damaged Hair is very easy to use. Just apply a small amount to the tips of your fingers and massage into the scalp. Leave for about fifteen minutes and then rinse with lukewarm water.