Compare Products: C.E.O. 15% Vitamin C Brightening Serum vs Ascorbyl Glucoside Solution 12%

Who It's Designed For

Sunday Riley
  • Those who want a stable vitamin C that will not oxidize or change color
  • Users who find L-ascorbic acid serums too irritating or acidic
  • People who enjoy a citrus-scented skincare experience
  • Those seeking a vitamin C serum that does not require refrigeration
  • Users looking for a luxurious texture that layers well under makeup
The Ordinary
  • Vitamin C beginners who want a low-irritation starting point
  • Sensitive skin types who cannot tolerate L-ascorbic acid
  • Those who want a stable vitamin C that will not oxidize in the bottle
  • Budget-conscious shoppers seeking a no-frills vitamin C serum
  • Users who prefer ultra-minimalist ingredient lists

Key Ingredients

Sunday Riley

15% Tetrahexyldecyl Ascorbate (THD Ascorbate), Squalane, Glycolic Acid, Tocopherol (Vitamin E), Saccharide Isomerate

The Ordinary

12% Ascorbyl Glucoside

Product Composition

15% similarity (5 ingredients in common)

Shared Ingredients
aqua/water/eauppg-12/smdi copolymersodium phytatesodium acrylate/sodium acryloyldimethyl taurate copolymercaprylyl glycol
Only in Sunday Riley (21)
tetrahexyldecyl ascorbatesqualanepolyglyceryl-6 distearatepeg-8 beeswaxlimonenecitrus sinensis (sweet orange) oilcitrus tangerina peel oilglycine soja sterolshydrogenated polydecenephenoxyethanolacetamidoethoxyethanoljojoba esterstocopherolglycolic acidcitrus aurantium dulcis (sweet orange) oilchlorphenesincera albaglycerinisosqualanec30 hydrocarbonssaccharide isomerate
Only in The Ordinary (8)
ascorbyl glucosidepropanediolaminomethyl propanoltriethanolamineisoceteth-20xanthan gumethoxydiglycol2-hexanediol

User Feedback Patterns

Sunday Riley
Luxurious texture

Users consistently praise the lightweight oily texture that absorbs well and sits beautifully under makeup. The application experience is rated higher than most L-ascorbic acid serums.

Pleasant citrus scent

The orange scent is frequently mentioned as a positive. Users who enjoy scented skincare rate this highly. However, fragrance-sensitive users avoid it.

No oxidation concerns

Users appreciate that the golden color remains consistent throughout the product's life. No anxiety about darkening or wasting product due to oxidation.

Gradual brightening results

Brightening results are described as gradual but visible over 4-8 weeks. Some users expecting the immediate 'glow' of L-ascorbic acid find the results slower.

The Ordinary
Beginner-friendly and non-irritating

The most common positive feedback is that this product causes no irritation. Users with sensitive skin, rosacea-prone skin, and vitamin C beginners praise its gentleness.

Slow but steady brightening

Users who use it consistently for 8+ weeks report gradual brightening and more even skin tone. Results are subtle rather than dramatic.

Some find it too mild

Users coming from L-ascorbic acid serums or expecting fast results find the effects underwhelming. Several reviewers switched to more potent vitamin C products.

Great texture for layering

The thin, watery texture layers well under other products. No stickiness, pilling, or interference with subsequent skincare or makeup steps.

Which Should You Buy?

The Ordinary Ascorbyl Glucoside Solution 12% offers great value at a lower price point. Sunday Riley C.E.O. 15% Vitamin C Brightening Serum may be worth the premium if you want 15% Tetrahexyldecyl Ascorbate (THD Ascorbate).

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