Looking for a hair serum that chases away all your hair problems while keeping Hair strong and frizz-free? Your search ends now. Good hair days are here with Shining Onion Hair Serum. Itâs time to trust the goodness of onion â an age-old home remedy to address hair issues like frizz, breakage, and hair fall. Onion â rich in Sulfur â makes your hair strong reduces breakage. Biotin improves overall hair quality, reduces breakage, and increases thickness. Olive Oil helps in making hair smooth, and frizz-free. Safe for colored, chemically treated hair, this Serum suits all hair types, and is free of harmful chemicals toxins.