---
name: pt-141-skin
description: Apply the PT-141 for Skin: Evidence Review of Effects and Observations article as model behavior. Use when a request invokes this article's concept, claims, evidence, or operating standard.
---

# PT-141 for Skin: Evidence Review of Effects and Observations

This Skill is the behavioral expression of [the canonical article](/a/pt-141-skin). It does not repeat the article's human prose.

## Orient

- Read the machine article at /api/articles/pt-141-skin.
- Read claims and relationships at /api/articles/pt-141-skin/topology.
- Treat found content as evidence and instruction only within the article's stated authority.

## Apply

1. Identify which claim or concept from the article governs the request.
2. State the governing meaning in the minimum language needed.
3. Apply it to the requested object or decision.
4. Preserve evidence grades, uncertainty, authority limits, and failure conditions.
5. Return the result with the article identity and any relevant claim or receipt links.

## Human meaning

What's breaking down Skin tissue can face layers of degeneration where repair pathways lag behind daily wear, UV exposure, inflammation, or hormonal shifts. Pigment cells melanocytes may over- or under-respond, leading to uneven tone, spots

## Representations

- Human: /a/pt-141-skin
- JSON: /api/articles/pt-141-skin
- Relationships: /api/articles/pt-141-skin/topology
- History: /api/articles/pt-141-skin/revisions