To study the effectiveness of our products and the satisfaction of 20 volunteers to compare before and after using the product side and the side that does not use the product within 7 days of using the product.
Efficacy of the product and the satisfaction of the 20 volunteers compared before and after using the product. And by using the unused product within 7 days after using the product.
Study of the efficiency of the products and the satisfaction of volunteers 20 people. Comparing before and after using the product. On the use and the side not use the product within the 7 days after using the product.