Different brands have different production costs. Laundry detergents with a smaller cost will be relatively cheaper.
Purchase method:
1. Look for products with high-quality appearance to have no impurities or layers to the naked eye; while defective products have layers that are thick at the bottom and thin at the top. At the same time, laundry detergents with good color are stable in color and will not discolor after being left for a long time; poor detergents will have dispersion and fading.
When purchasing, pay attention to the label. The packaging of qualified laundry detergent should have the product name, net weight, product instructions, factory name and address, shelf life, etc. The trademark pattern on the product label should be clear and there should be no deinking phenomenon.
2. Smell; a good laundry detergent has a pure fragrance, but if it lasts, it will be sour and a little astringent.
3. Ask; when purchasing, you should ask more about the historical background of the production company, whether it is professional, and what its brand reputation is.