---
title: Dark Elbows and Knees
entity_type: Concern
canonical_url: https://skinknowledgebase.com/concerns/dark-elbows-and-knees
date_modified: 2026-05-26
date_reviewed: 2026-05-26
mcp_eligible: true
summary: Dark elbows and knees are often linked to friction, dryness, thicker skin, and uneven tone, though sudden velvety darkening needs clinician review. Routine
no_product_rationale: No ranked product is included because dark elbows and knees can reflect friction, dryness, body-area tolerance, or medical context; the safer public guidance is ingredient categories and clinician signposts rather than a single product recommendation.
key_ingredients:
  - title: Lactic Acid
    url: https://skinknowledgebase.com/ingredients/lactic-acid
  - title: Glycolic Acid
    url: https://skinknowledgebase.com/ingredients/glycolic-acid
  - title: Urea
    url: https://skinknowledgebase.com/ingredients/urea
  - title: Niacinamide
    url: https://skinknowledgebase.com/ingredients/niacinamide
  - title: Glycerin
    url: https://skinknowledgebase.com/ingredients/glycerin
evidence_sources:
  - title: AAD — How to fade dark spots in darker skin tones
    canonical_citation_url: https://skinknowledgebase.com/sources/aad-fade-dark-spots-darker-skin-tones
    original_source_url: https://www.aad.org/public/everyday-care/skin-care-secrets/routine/fade-dark-spots
    source_type: other
  - title: DermNet — Postinflammatory hyperpigmentation
    canonical_citation_url: https://skinknowledgebase.com/sources/dermnet-postinflammatory-hyperpigmentation
    original_source_url: https://dermnetnz.org/topics/postinflammatory-hyperpigmentation
    source_type: medical_reference
product_fact_sources: []
---

# Dark Elbows and Knees

## Quick Summary

Dark elbows and knees are common because these areas get friction, pressure, dryness, and thicker-looking texture. Routine care can support smoother, more even-looking skin over time.

## Causes

Friction, kneeling, leaning, dryness, buildup, sun exposure, and natural skin tone variation can all contribute. Sudden, velvety, widespread, itchy, painful, or rapidly changing darkening should be checked.

## Related Entities

- [AAD — How to fade dark spots in darker skin tones](https://skinknowledgebase.com/sources/aad-fade-dark-spots-darker-skin-tones)
- [DermNet — Postinflammatory hyperpigmentation](https://skinknowledgebase.com/sources/dermnet-postinflammatory-hyperpigmentation)
- [Lactic Acid](https://skinknowledgebase.com/ingredients/lactic-acid)
- [Glycolic Acid](https://skinknowledgebase.com/ingredients/glycolic-acid)
- [Urea](https://skinknowledgebase.com/ingredients/urea)
- [Niacinamide](https://skinknowledgebase.com/ingredients/niacinamide)
- [Glycerin](https://skinknowledgebase.com/ingredients/glycerin)
- [Why are my elbows and knees so dark?](https://skinknowledgebase.com/questions/why-are-my-elbows-and-knees-so-dark)
- [How do I get rid of dark knees?](https://skinknowledgebase.com/questions/how-do-i-get-rid-of-dark-knees)