---
title: Blue Mercury Product Page — SkinCeuticals Discoloration Defense
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/blue-mercury-product-page-skinceuticals-discoloration-defense
date_modified: 2026-05-18
date_reviewed: 2026-05-18
mcp_eligible: true
source_type: retailer_product_page
original_source_url: https://bluemercury.com/products/skinceuticals-discoloration-defense
evidence_sources: []
product_fact_sources: []
---

# Blue Mercury Product Page — SkinCeuticals Discoloration Defense

## Quick Summary

Blue Mercury product page used for SkinCeuticals Discoloration Defense title, price, key ingredient concentrations, INCI, directions, and routine warnings.

## What Studied

Retailer product information page, not independent clinical evidence.

## Main Findings

The page identifies SkinCeuticals Discoloration Defense, lists $115 and a 1 fl oz size, and names 3% tranexamic acid, 1% kojic acid, 5% niacinamide, and 5% HEPES. The INCI includes water, butylene glycol, niacinamide, hydroxyethylpiperazine ethane sulfonic acid, glycerin, tranexamic acid, propylene glycol, hydroxyethyl urea, kojic acid, caprylyl glycol, allantoin, chlorphenesin, xanthan gum, and disodium EDTA. Directions say twice daily, 3–5 drops to face, with morning SPF use and instructions not to use on irritated or broken skin.

## Why It Matters

It verifies the concentration-forward product story, price context, full INCI, and usage directions used in the neutral formula breakdown.

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