Hypochlorous acid (HOCl) can deal with the itching symptoms caused by atopic dermatitis
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Hypochlorous acid (HOCl) can deal with the itching symptoms caused by atopic dermatitis

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Atopic dermatitis (AD), also known as atopic eczema, was once called "atopic dermatitis". It is a chronic, recurrent, and inflammatory skin disease. It is clinically characterized by dry skin, severe itching and It is characterized by eczema-like rash, which usually begins to develop in infants and young children.

Atopic dermatitis (AD) is one of the common diseases in dermatology and has become a major public health problem in the world. In the past 30 years or so, the global incidence of AD has gradually increased, and the prevalence in developing countries has increased significantly, which may be related to urbanization and industrialization.

In 2018, Berman B of the University of Miami’s Miller School of Medicine Clinical and Aesthetic Research Center conducted a controlled study of hypochlorous acid (HOCl) in the treatment of itching caused by atopic dermatitis. The details are as follows:best hypochlorous acid maker - qinhuangwater

Hypochlorous acid research background

Hypochlorous acid (HOCl) may reduce atopic dermatitis (AD) through its bactericidal effects (especially reducing Staphylococcus aureus) and anti-inflammatory effects (reducing the activity of histamine, leukotriene B4 and interleukin-2) In order to further confirm the pathology of itching caused by hypochlorous acid (HOCl). Berman B et al. conducted a three-day research project to evaluate the effect of hypochlorous acid (HOCl) on pruritus in patients with atopic dermatitis.

Histamine: released when tissue is injured or allergic;

Leukotriene B4: a leukotriene substance related to inflammation;

Interleukin-2: It plays an important role in the body's immune response and anti-viral infection.

Research method of hypochlorous acid

The study was conducted in accordance with the established protocol and in compliance with Good Clinical Practice (GCP) and other applicable regulatory requirements. This study was conducted in two stages using a blind method to study the antipruritic effect of HOCl on patients diagnosed with atopic dermatitis (AD).

The subject's atopic dermatitis (AD) met the Hanifin criteria, and the pruritus severity score was higher than 2 points (0-4). Thirty subjects were included in this project, 20 were randomly divided into the treatment group (HOCl), and 10 were randomly divided into the untreated control group. The subjects used the solution containing HOCl for 72 hours of treatment, and recorded the usage status accordingly.

The three main indicators used are Participant Overall Assessment (PGA), Investigator Overall Assessment (IGA) and Visual Analog Scale (VAS) Pruritus Score. The incidence of adverse events (AEs) and serious adverse events (SAEs) and local skin reactions leading to discontinuation were recorded. Measurements were taken at 0 hours, 24 hours and 72 hours after treatment. A photograph of a representative area of the affected skin was taken.

Hanifin standard: This standard is the diagnostic standard for atopic dermatitis (AD).

Result of the experiment of hypochlorous acid

Studies have shown that the average VAS pruritus scores of the two groups at 0 hours are similar. Between 0:00 and 72 hours, the average changes in PGA and IGA scores were significantly reduced, which supports the effectiveness of HOCl treatment (PGA: p value = 0.128; IGA: p = 0.012). There was a significant difference in the average VAS score of itching between the treatment group and the untreated group between 0 hours and 72 hours after the medication, while the average change in percentage of the HOCl treatment group was significantly reduced (improved).

The analysis showed that 73.7% of subjects who received HOCl treatment and 30.0% of subjects who did not receive treatment had reduced pruritus within 72 hours after the initial administration. There are no adverse reactions caused by the use of hypochlorous acid (HOCl).


This study showed that compared with the 72-hour untreated group, the 24-hour application of hypochlorous acid (HOCl) solution can reduce the itching associated with atopic dermatitis (AD), and the effect is significantly better than the 72-hour untreated group.