---
title: Niacinamide and skin barrier function
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/pubmed-niacinamide-tolerability
date_modified: 2026-05-27
date_reviewed: 2026-05-27
mcp_eligible: true
summary: PubMed niacinamide literature supports separating true niacin flushing from topical niacinamide irritation or barrier-related burning. It helps keep public
source_type: peer_reviewed
original_source_url: https://pubmed.ncbi.nlm.nih.gov/?term=niacinamide+skin+barrier+tolerability
evidence_sources: []
product_fact_sources: []
---

# Niacinamide and skin barrier function

## Quick Summary

PubMed niacinamide literature supports separating true niacin flushing from topical niacinamide irritation or barrier-related burning.

## What Studied

This source is used for conservative skincare education, ingredient mechanisms, reaction-pattern boundaries, or clinician-referral language.

## Main Findings

The source supports practical, cautious wording and does not justify cure claims or overconfident product promises.

## Why It Matters

It anchors the page in a more reliable reference than marketing copy or thin SEO summaries.

Original Source — Niacinamide and skin barrier function. https://pubmed.ncbi.nlm.nih.gov/?term=niacinamide+skin+barrier+tolerability (rel="nofollow")

## Related Entities

- [Can niacinamide make my skin flush or burn?](https://skinknowledgebase.com/questions/can-niacinamide-make-my-skin-flush-or-burn)