---
title: SkinCeuticals Discoloration Defense
entity_type: Product
canonical_url: https://skinknowledgebase.com/products/skinceuticals-discoloration-defense
date_modified: 2026-05-18
date_reviewed: 2026-05-18
mcp_eligible: true
main_concern:
  title: Facial Hyperpigmentation
  url: https://skinknowledgebase.com/concerns/facial-hyperpigmentation
key_ingredients:
  - title: Tranexamic Acid
    url: https://skinknowledgebase.com/ingredients/tranexamic-acid
  - title: Niacinamide
    url: https://skinknowledgebase.com/ingredients/niacinamide
  - title: Kojic Acid
    url: https://skinknowledgebase.com/ingredients/kojic-acid
cost: {"currency":"USD","checked_at":"2026-05-18","single_unit":115,"multi_pack_2":230}
retail_url: https://www.skinceuticals.com/skincare/serums/discoloration-defense/S25.html
evidence_sources:
  - title: PubMed — Tranexamic acid hyperpigmentation review
    canonical_citation_url: https://skinknowledgebase.com/sources/tranexamic-acid-hyperpigmentation-review
    original_source_url: https://pubmed.ncbi.nlm.nih.gov/41601401/
    source_type: peer_reviewed
  - title: PubMed — Niacinamide and hyperpigmented spots
    canonical_citation_url: https://skinknowledgebase.com/sources/bissett-2004-niacinamide-aging-facial-skin
    original_source_url: https://pubmed.ncbi.nlm.nih.gov/18492135/
    source_type: other
  - title: Blue Mercury Product Page — SkinCeuticals Discoloration Defense
    canonical_citation_url: https://skinknowledgebase.com/sources/blue-mercury-product-page-skinceuticals-discoloration-defense
    original_source_url: https://bluemercury.com/products/skinceuticals-discoloration-defense
    source_type: retailer_product_page
product_fact_sources: []
---

# SkinCeuticals Discoloration Defense

## Quick Summary

SkinCeuticals Discoloration Defense is a $115 / 1 fl oz serum positioned for discoloration appearance, dark spots, and more even-looking tone. Blue Mercury lists 3% tranexamic acid, 1% kojic acid, 5% niacinamide, 5% HEPES, glycerin, hydroxyethyl urea, and allantoin.

## Compact Product Facts

- Brand: SkinCeuticals
- Product line: SkinCeuticals Correct
- Full product name: SkinCeuticals Discoloration Defense
- Cost: {"currency":"USD","checked_at":"2026-05-18","single_unit":115,"multi_pack_2":230}
- Retail URL: https://www.skinceuticals.com/skincare/serums/discoloration-defense/S25.html

## Factual Description

Blue Mercury identifies the product as SkinCeuticals Discoloration Defense and lists $115 for the 1 fl oz size. The key ingredient cards name 3% tranexamic acid, 1% kojic acid, 5% niacinamide, and 5% HEPES. The full INCI lists 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. Blue Mercury is the product-facts source for these formula, price, and direction details.

## Related Entities

- [PubMed — Tranexamic acid hyperpigmentation review](https://skinknowledgebase.com/sources/tranexamic-acid-hyperpigmentation-review)
- [PubMed — Niacinamide and hyperpigmented spots](https://skinknowledgebase.com/sources/bissett-2004-niacinamide-aging-facial-skin)
- [Blue Mercury Product Page — SkinCeuticals Discoloration Defense](https://skinknowledgebase.com/sources/blue-mercury-product-page-skinceuticals-discoloration-defense)
- [Facial Hyperpigmentation](https://skinknowledgebase.com/concerns/facial-hyperpigmentation)
- [Dark Spots from Acne](https://skinknowledgebase.com/concerns/dark-spots-from-acne)
- [Dullness](https://skinknowledgebase.com/concerns/dullness)
- [Tranexamic Acid](https://skinknowledgebase.com/ingredients/tranexamic-acid)
- [Niacinamide](https://skinknowledgebase.com/ingredients/niacinamide)
- [Kojic Acid](https://skinknowledgebase.com/ingredients/kojic-acid)
- [Is SkinCeuticals Discoloration Defense worth the price?](https://skinknowledgebase.com/questions/is-skinceuticals-discoloration-defense-worth-the-price)