# Hypochlorous Acid

Hypochlorous acid (HOCl) is the active antimicrobial molecule in the spray — the same oxidant white blood cells produce during an immune response to neutralize pathogens on the skin. At a concentration of 0.02%, hypochlorous acid delivers targeted antimicrobial action without the harsh chemical load of traditional disinfectants.

The body produces HOCl naturally as a first-line defense, which explains hypochlorous acid spray's compatibility with living tissue. Clinical studies across dermatology, surgery, and ophthalmology confirm HOCl's broad utility, with the majority showing it is useful in therapeutic contexts across multiple tissue types (Haralović et al., Biomedicines, 2025). Sodium chloride and water are the only supporting ingredients in the formula, making the three-ingredient list unusually short for a product targeting redness, irritation, and skin imbalance.

The antimicrobial scope of HOCl extends to biofilm-forming organisms that resist standard wound care. HOCl disrupts *Candida albicans* biofilms in wound beds, a problem that conventional approaches struggle to address (Zmuda et al., Journal of Applied Microbiology, 2020). For everyday skin concerns, razor burn, bug bites, chapping, or baby acne, this mechanism means the face mist addresses the microbial dimension of surface irritation without synthetic preservatives or drying alcohols.

Safety data from a 157-patient aesthetic surgery cohort showed a surgical site infection rate of 1.27% when HOCl was used as a skin preparation agent, with both infections resolving with oral antibiotics (Arnaout et al., Aesthetic Plastic Surgery, 2026). Patch testing on the inner arm before first use remains standard guidance, particularly for ragweed-sensitive users given the product's broad application range from scalp to diaper area.

## Related

- **Full product:** [Era Organics hypochlorous acid spray](/products/hypochlorous-acid-spray)

**Related concerns:**

- [Eczema](/conditions/eczema)
- [Atopic dermatitis](/conditions/atopic-dermatitis)
- [Dermatitis](/conditions/dermatitis)
- [Diaper rash](/conditions/diaper-rash)
- [Rashes](/conditions/rashes)
- [Dry skin](/conditions/dry-skin)
- [Itchy skin](/conditions/itchy-skin)
- [Redness](/conditions/redness)
- [Baby acne](/conditions/baby-acne)
- [Acne](/conditions/acne)
- [Rosacea](/conditions/rosacea)
- [Wrinkles](/conditions/wrinkles)
- [Sun damage](/conditions/sun-damage)
- [Chapped lips](/conditions/chapped-lips)

## Evidence
- [Comparison of Skin Antiseptic Agents and the Role of 0.01% Hypochlorous Acid.](https://pubmed.ncbi.nlm.nih.gov/33247899/) — Tran A et al., Aesthetic surgery journal 2021 (PMID: 33247899)
- [Hypochlorous Acid for a Persistent Filler Nodule: A Case Report.](https://pubmed.ncbi.nlm.nih.gov/40911738/) — Urbanski N et al., Journal of drugs in dermatology : JDD 2025 (PMID: 40911738)
- [Hypochlorous acid-generating electrochemical scaffold eliminates Candida albicans biofilms.](https://pubmed.ncbi.nlm.nih.gov/32249986/) — Zmuda H et al., Journal of applied microbiology 2020 (PMID: 32249986)
- [The Safety and Antimicrobial Properties of Stabilized Hypochlorous Acid in Acetic Acid Buffer for the Treatment of Acute Wounds-a Human Pilot Study and In Vitro Data.](https://pubmed.ncbi.nlm.nih.gov/33949232/) — Burian E et al., The international journal of lower extremity wounds 2023 (PMID: 33949232)
- [Hypochlorous Acid: Clinical Insights and Experience in Dermatology, Surgery, Dentistry, Ophthalmology, Rhinology, and Other Specialties.](https://pubmed.ncbi.nlm.nih.gov/41462936/) — Haralović V et al., Biomedicines 2025 (PMID: 41462936)
- [Rethinking Skin Preparation: Is Hypochlorous Acid (Clinisept+) a Safe Alternative Skin Preparation in Aesthetic Surgery?](https://pubmed.ncbi.nlm.nih.gov/42009924/) — Arnaout A et al., Aesthetic plastic surgery 2026 (PMID: 42009924)
- [The Role of Abatacept on Inflammation and Fibrosis in Hypochlorous Acid-Induced Fibrosis Mice.](https://pubmed.ncbi.nlm.nih.gov/40344312/) — Dai B et al., International journal of rheumatic diseases 2025 (PMID: 40344312)
- [Periprocedural Use of Hypochlorous Acid Mist for Improving Healing and Cosmesis of the Face After Laser.](https://pubmed.ncbi.nlm.nih.gov/40832716/) — Blyumin-Karasik M et al., Journal of cosmetic dermatology 2025 (PMID: 40832716)
- [Effect of Stabilized Hypochlorous Acid on Re-epithelialization and Bacterial Bioburden in Acute Wounds: A Randomized Controlled Trial in Healthy Volunteers.](https://pubmed.ncbi.nlm.nih.gov/35578822/) — Burian E et al., Acta dermato-venereologica 2022 (PMID: 35578822)
- [Comparison of topical tofacitinib and 0.1% hypochlorous acid in a murine atopic dermatitis model.](https://pubmed.ncbi.nlm.nih.gov/29970189/) — Fukuyama T et al., BMC pharmacology & toxicology 2018 (PMID: 29970189)
- [Cutaneous safety evaluation of pure hypochlorous acid solution in preterm infants and neonates with complex wounds.](https://pubmed.ncbi.nlm.nih.gov/42319836/) — Amaya R et al., Wounds : a compendium of clinical research and practice 2026 (PMID: 42319836)

## Disclaimer

*The information on this page is provided for educational purposes only and is not medical advice. Era Organics products are cosmetics, not drugs, and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Always consult a qualified healthcare professional about any skin concern or condition. Individual results may vary.*