> For the complete documentation index, see [llms.txt](https://docs.saas.haut.ai/haut.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.saas.haut.ai/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/redness/irritation.md).

# Irritation

What the Irritation parameter measures in facial skin, and how to read the scores, grades, and condition tags it returns.

## About Parameter

The parameter estimates the visible presence and severity of irritation in facial skin, including diffuse inflammation, localized sensitivity, and areas of discomfort that may be caused by skin reactions, environmental factors, or various skin conditions that trigger inflammatory responses.

## Features

1. Works with 1 and 3 side facial images.

## Output

1. Score from 1 to 100.
2. Grade from 1 to 5.
3. Algorithm-assigned skin condition tag (Great, Good, Average, Poor).
4. Score for specific facial regions: nose, forehead, perioral, left cheek, right cheek.

## Scores & Grades Description

<table><thead><tr><th width="119.51171875">Score value</th><th width="119.62109375">Grade value</th><th width="359.796875">Description</th><th>Tags</th></tr></thead><tbody><tr><td>100-90</td><td>1</td><td>Minimal irritation, barely noticeable</td><td>Great</td></tr><tr><td>89-80</td><td>2</td><td>Mild irritation with slight inflammation</td><td>Good</td></tr><tr><td>50-79</td><td>3</td><td>Moderate irritation with visible inflammation</td><td>Average</td></tr><tr><td>30-49</td><td>4</td><td>Significant irritation with pronounced inflammation</td><td>Poor</td></tr><tr><td>&#x3C;30</td><td>5</td><td>Severe irritation with intense inflammation</td><td>Poor</td></tr></tbody></table>

## Algorithm API

{% hint style="warning" %}
API access is available only for <mark style="color:purple;">**Professional**</mark> plan clients
{% endhint %}

See [Irritation Parameter Result Scheme](/haut.ai/developers/saas-api-overview/api-for-face-skin-analysis-3.0/redness/irritation.md).

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