What is the percentage content of salicylic acid in Jiuzhitang Zuguang Powder? Will it excessively corrode healthy skin?

Just calculated that each 1g polishing powder contains 0. 18g salicylic acid. According to the recommended addition of 1000- 1500ml water, the concentration of salicylic acid in the solution is about 0.4%-0.6%.

Generally speaking, 0.5%-2% concentration of salicylic acid is acceptable. Search literature shows that some doctors use salicylic acid with a concentration of 6% as a skin care cream for patients with skin diseases and chapped hands and feet.

Therefore, it can be considered that salicylic acid in Zuguang powder is safe, but it still needs to be used according to the usage and times of the doctor's advice or instructions.