Seaweed acts as a hair growth nutrient as it contains so many micro nutrients including iodine.
Seaweed has a good combination of minerals and amino acids that help strengthen the hair and scalp. Seaweed also contains biotin that is connected with healthy hair. The beta carotene in the plant helps maintain collagen at higher levels which reduces scars and markings on the skin. Seaweed is so potent that it has been used as a supplement for age reversal.
Make sure the seaweed you purchase comes from “clean” waters.
By far the best seaweed for hair growth is kelp and should be a staple of your daily hair diet.