1. Don't blindly believe in the effect: the toothpaste is rinsed out when it stays in the mouth for a short period of time, and some special toothpastes are difficult to exert their efficacy in a short period of time. If the teeth are healthy, use ordinary toothpaste.

Ordinary toothpaste contains friction agents, detergents, foaming agents, moisturizers, preservatives and other ingredients, which play a role in cleaning the mouth, rubbing to remove odors and food residues.

High-quality products are uniform and viscous, with no visible impurities or stratification, and defective products have thicker and thinner layers.

Different brands of laundry liquid use different dosages, and there is a big difference between the dosage of hand washing and machine washing. It is recommended that you determine the dosage of laundry liquid according to the usage instructions of the laundry liquid.

Body cleansing requires a large area of cleansing. At the same time, it also needs to generate foam during use. Therefore, shower gels usually have good foaming properties.