> 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/pigmentation.md).

# Pigmentation

What the Pigmentation parameter measures, the facial areas and pigmentation types it covers, and how to read its scores and grades.

## About Parameter

This parameter estimates the visible presence and severity of local patches of skin of size up to several cm, that are darker in color than the normal surrounding skin due to the local excess of melanin.

## Features

1. Multi-area analysis: forehead, left cheek, right cheek, and perioral region.
2. Multi-type pigmentation detection: freckles, moles, melasma, sun spots.
3. 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. Vector mask for detected features.

## 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>Skin tone is even with minimal to no visible pigmented spots</td><td>Great</td></tr><tr><td>89-80</td><td>2</td><td>Mild pigmentation visible as small, localized spots</td><td>Good</td></tr><tr><td>50-79</td><td>3</td><td>Moderate pigmentation present, with noticeable uneven tone and several pigmented spots across face</td><td>Average</td></tr><tr><td>30-49</td><td>4</td><td>Extensive pigmentation with prominent hyperpigmented sports and areas</td><td>Poor</td></tr><tr><td>&#x3C;30</td><td>5</td><td>Severe and widespread pigmentation with large, dense spots</td><td>Poor</td></tr></tbody></table>

## Related Advanced Parameters

{% hint style="warning" %}
**Disclaimer**

By default, advanced parameters in Face Skin Analysis 3.0 are not available and are only displayed when the advanced parameters option is enabled. Please contact your account manager to activate this feature.
{% endhint %}

* [Freckles](/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/pigmentation/freckles.md)
* [Moles](/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/pigmentation/moles.md)
* [Melasma](/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/pigmentation/melasma.md)
* [Sun Spots](/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/pigmentation/sun-spots.md)

***

## Algorithm API

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

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

***

{% hint style="warning" %}
Not a Haut.AI client yet?
{% endhint %}

<a href="https://haut.ai/book-a-demo?utm_source=referral&#x26;utm_medium=saas_docs&#x26;utm_campaign=Docs_SaaS_HautAI" class="button primary" data-icon="user-vneck">Book a demo</a> <a href="https://haut.ai/product/face-skin-analysis?utm_source=referral&#x26;utm_medium=saas_docs&#x26;utm_campaign=Docs_SaaS_HautAI" class="button secondary" data-icon="external-link">Face Skin Analysis 3.0 on haut.ai</a>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.saas.haut.ai/haut.ai/haut.ai-features/algorithms/face-skin-analysis-3-0/pigmentation.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.