---
title: Official Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
entity_type: Source
canonical_url: https://skinknowledgebase.com/sources/official-product-page-sunday-riley-ceo-15-vitamin-c-brightening-serum
date_modified: 2026-05-19
date_reviewed: 2026-05-19
mcp_eligible: true
summary: Official Sunday Riley product page for C.E.O. 15% Vitamin C Brightening Serum, including price, THD ascorbate positioning, dark-spot and dullness language, and
source_type: official_product_page
original_source_url: https://sundayriley.com/products/ceo-vitamin-c-brightening-serum
evidence_sources: []
product_fact_sources: []
---

# Official Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum

## Quick Summary

Official Sunday Riley product page used for C.E.O. 15% Vitamin C Brightening Serum title, $85.00 price, size options, THD ascorbate positioning, dullness and dark-spot language, and product schema.

## What Studied

Official brand product information page, not independent clinical evidence.

## Main Findings

The page identifies C.E.O. 15% Vitamin C Brightening Serum and lists $85.00 pricing for the 1 fl oz / 30 ml size. It describes CEO 15% Vitamin C Brightening Serum with THD ascorbate, dullness, dark spots, discolorations, premature-aging appearance, saccharide isomerate, moisture barrier language, and sulfate-free, paraben-free, gluten-free, phthalate-free, fragrance-free, and vegetarian positioning.

## Why It Matters

It verifies the current official product URL, product name, price, size, THD ascorbate positioning, dullness and dark-spot context, and product schema used in the neutral product breakdown.

## Related Entities

- [Sunday Riley C.E.O. 15% Vitamin C Brightening Serum](https://skinknowledgebase.com/products/sunday-riley-ceo-15-vitamin-c-brightening-serum)
- [Is Sunday Riley C.E.O. Vitamin C Serum worth the price?](https://skinknowledgebase.com/questions/is-sunday-riley-ceo-vitamin-c-serum-any-good)