Nikskin is a self-produced brand in Singapore, including rare and 100% natural non-transgenic white tomatoes, grapefruit/rosemary and wheat. There are no side effects unless you are allergic to its plant ingredients. With the authoritative certification of GMP and SGS, it is approved by the US Food and Drug Administration in Singapore and sold in medical beauty institutions and beauty salons in Singapore. It's not a three-no product, so you can take it with confidence.