由于各种中草药的混合，无论是白色还是黄色，干的还是液体的，只要存放在阴凉或寒冷的地方都可以安全使用。 务必远离阳光！

It is mixed with various pure chinese herbal in ingredients so it doesn’t matter of either white or yellow in colour, dry or liquid in form, it is safe to use as long as it is stored in a cool or cold place. Keep it away from sunlight!