---
title: AAD — Retinoid or retinol?
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/aad-retinoid-retinol
date_modified: 2026-05-21
date_reviewed: 2026-05-21
mcp_eligible: true
summary: AAD retinoid and retinol guidance supports careful retinoid education, slow introduction, irritation-aware cosmetic routine boundaries, and clinician-guidance
source_type: dermatology_reference
original_source_url: https://www.aad.org/public/everyday-care/skin-care-secrets/anti-aging/retinoid-retinol
evidence_sources: []
product_fact_sources: []
---

# AAD — Retinoid or retinol?

## Quick Summary

Dermatology guidance used for retinoid and retinol basics and tolerance boundaries.

## What Studied

Reference used for skincare context.

## Main Findings

Used for factual context in this routine.

## Why It Matters

Supports the cited context for this 40s skincare routine.

## Related Entities

- [How should my skincare change in my 40s?](https://skinknowledgebase.com/questions/how-should-my-skincare-change-in-my-40s)