Science

Hypochlorous acid, explained without the noise.

Educational reading on the skin barrier, HOCl, and the reasoning behind a 200 ppm daily mist.

Section 01 — The problem

The barrier comes first.

Your skin barrier is a thin, layered surface that holds water in and keeps irritants out. Most visible skin stress — tightness, redness, reactivity — traces back to a barrier under pressure. Everything STRATA does starts here.

Section 02 — The mechanism

A molecule you already make.

Hypochlorous acid is not an imported active. Your own white blood cells produce it as part of the innate immune response — STRATA simply delivers the same molecule in a stable, cosmetic-grade form.

  1. 01

    White blood cells

    Neutrophils arrive first whenever your skin is challenged.

  2. 02

    Naturally produce hypochlorous acid

    An enzyme converts chloride into HOCl — the innate immune response.

  3. 03

    Supports healthy skin

    Surface-level defense, then it breaks back down into salt water.

  4. 04

    STRATA delivers the same molecule

    Stabilised at 200 ppm, misted directly onto skin. Nothing else added.

Section 03 — The concentration

Why 200 ppm.

Concentration is a balance. Too low and the solution loses meaning; too high and daily use stops being comfortable. STRATA is standardised at 200 ppm — a considered midpoint chosen for everyday, full-face and full-body use.

Section 04 — The formula

Three ingredients, in plain English.

No fragrance, alcohol, dyes or essential oils. Fewer inputs means fewer variables for sensitive skin, and a mist that layers cleanly under anything else in your routine.

Luminous 3D visualization of the hypochlorous acid (HOCl) molecule
The molecule · HOCl
Hypochlorous Acid (HOCl)
The active molecule, at 200 ppm. The same compound your immune cells make. Supports healthy skin and helps calm the look of irritation.
Electrolysed Water
Purified water passed through an electrical cell — the carrier, and the origin of the HOCl.
Sodium Chloride
Pharmaceutical-grade salt. It makes the electrolysis possible and keeps the formula stable.

Section 05 — The history

From the immune system to your bathroom shelf.

  1. 1834

    HOCl first described

    The molecule is identified and characterised in the laboratory.

  2. 1915

    Widespread field use

    Hypochlorous solutions are produced and used at scale for the first time.

  3. 1970s

    Immune mechanism mapped

    Researchers confirm neutrophils generate HOCl via myeloperoxidase.

  4. 2000s

    Modern skincare

    Stabilised HOCl becomes a familiar step in gentle, minimal routines.

  5. Today

    STRATA

    The same molecule, designed for a daily consumer routine.

Section 06 — The uses

What can you actually do with it?

The same molecule that supports the skin barrier also has uses well beyond it — the gym, the pets, the tub water, the surfaces. Explore the full list.

See all use cases →

Section 06 — The practice

How to use it.

  1. 01

    Distance

    Hold six inches from clean or made-up skin.

  2. 02

    Mist

    Two or three passes, evenly across face, neck or body.

  3. 03

    Settle

    Give it thirty seconds. No wiping, no rinsing.

  4. 04

    Repeat

    Morning, evening, after training, after shaving — as often as skin needs.

STRATA is a cosmetic product intended to support the look and feel of skin. This page is educational and makes no health claims.

Buy on Amazon Prime

Ships free with Prime · Sold on the official STRATA Amazon Storefront