The Ordinary

The Ordinary Ascorbyl Glucoside Solution 12%

Serum·Budget-Friendly·$17 / 30ml — $0.57/ml

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The Ordinary Ascorbyl Glucoside Solution 12%$17 / 30ml — $0.57/ml

Formulation Summary

An ultra-minimalist vitamin C serum with only 12 ingredients. Uses Ascorbyl Glucoside at 12%, a stable, water-soluble vitamin C derivative that converts to ascorbic acid on the skin. Designed as a gentle, beginner-friendly entry point into vitamin C skincare with minimal irritation risk.

The Ordinary takes a stripped-back approach with this formula. Ascorbyl Glucoside is listed second after water, confirming the 12% concentration. This derivative is one of the most stable forms of vitamin C and does not oxidize or change color over time. The formula uses propanediol as a co-solvent and includes dimethyl isosorbide and ethoxydiglycol to enhance penetration. No fragrance, no botanical extracts, no oils. The formula is purely functional.

Quick Facts

TextureLightweight, watery serum. Clear and thin. Absorbs quickly with no residue.
ColorClear and colorless. Does not change color over time (unlike L-ascorbic acid serums).
Fragrance-free✓ Yes
Cruelty-freeLeaping Bunny
Vegan✓ Yes — Confirmed vegan by DECIEM/The Ordinary.
ScentNo scent. Completely fragrance-free.

Designed For

  • 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

May Not Suit

  • Users seeking potent, fast-acting brightening (ascorbyl glucoside is milder than L-ascorbic acid)
  • Those looking for additional hydrating or anti-aging ingredients in their vitamin C serum
  • People who want visible results within a few weeks (this derivative works gradually)
  • Users who prefer a thicker, more luxurious serum texture

Key Ingredients

IngredientConcentrationFunction
Ascorbyl Glucoside12%brand-confirmedA water-soluble vitamin C derivative formed by bonding ascorbic acid to glucose. The glucose bond stabilizes the molecule, preventing oxidation. The enzyme alpha-glucosidase in the skin cleaves the bond to release free ascorbic acid. At 12%, this is a high concentration for this derivative. Research supports its brightening and antioxidant activity, though it is generally considered less potent than direct L-ascorbic acid application.

The Formulation Explained

Ascorbyl glucoside as a prodrug

Ascorbyl glucoside is a prodrug; it is inactive until skin enzymes convert it to ascorbic acid. The glucose molecule attached to ascorbic acid prevents oxidation in the bottle, which is why the solution stays clear indefinitely. The trade-off is that the conversion process means less active vitamin C reaches the skin compared to applying L-ascorbic acid directly.

12 ingredients total

This is one of the most minimalist vitamin C serums available. Every ingredient serves a clear functional purpose: solvent, active, pH adjusters, penetration enhancers, thickener, chelator, and preservatives. No fillers, fragrance, botanical extracts, or marketing ingredients. This approach reduces irritation risk to the minimum.

Stability advantage

Unlike L-ascorbic acid serums that darken and lose potency within weeks to months, ascorbyl glucoside remains stable throughout the product's shelf life. Users do not need to worry about storing it in the fridge or discarding it when it changes color. This is the primary practical advantage over L-ascorbic acid formulations.

Gradual results expected

Because the vitamin C must be enzymatically released in the skin, results are more gradual than with direct L-ascorbic acid. Users should expect to see brightening improvements over 8-12 weeks of daily use rather than the 2-4 weeks typical of high-concentration L-ascorbic acid serums.

Ingredients to Know

PropanediolComedogenicity: 0/5Irritancy: 0/5

Plant-derived solvent and humectant. Listed third. A gentler alternative to propylene glycol. Helps dissolve the ascorbyl glucoside and aids absorption.

Dimethyl IsosorbideIrritancy: 1/5

Penetration enhancer. Helps the ascorbyl glucoside reach deeper skin layers where enzymes can convert it to active vitamin C. May slightly increase irritation potential.

EthoxydiglycolComedogenicity: 0/5Irritancy: 1/5

Solvent and penetration enhancer. Works alongside dimethyl isosorbide to improve delivery. Also used in many L-ascorbic acid serums including SkinCeuticals CE Ferulic.

Aminomethyl PropanolComedogenicity: 0/5Irritancy: 0/5

pH adjuster. Used to maintain the optimal pH range for ascorbyl glucoside stability and activity.

User Feedback Patterns

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.

Full INCI List

13 ingredients · Click "Show full list" to view

About The Ordinary

Founded2016
FounderBrandon Truaxe (DECIEM founder, deceased 2019); Nicola Kilner (current CEO)
LocationToronto, Canada (under DECIEM, owned by Estee Lauder)

The Ordinary discloses exact concentrations for key actives (12% ascorbyl glucoside confirmed). Full INCI lists are on all product pages. The brand provides detailed ingredient function explanations on their website. Leaping Bunny certified cruelty-free and vegan.

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Sources

  • https://theordinary.com/en-us/ascorbyl-glucoside-solution-12-vitamin-c-100405.html
  • https://incidecoder.com/products/the-ordinary-ascorbyl-glucoside-solution-12
  • https://skinsort.com/products/the-ordinary/ascorbyl-glucoside-solution-12
  • https://www.amazon.com/Ordinary-Ascorbyl-Glucoside-Solution-30ml/dp/B074NNVLCM
  • https://whatsinmyjar.com/product/the-ordinary-ascorbyl-glucoside-solution-12

Last updated: 2026-03

Rating Scales

Comedogenicity (0-5)

Likelihood of clogging pores. 0 = won't clog, 1-2 = low, 3 = moderate, 4-5 = high.

Irritancy (0-5)

Potential for skin irritation. 0 = non-irritating, 1-2 = low, 3 = moderate, 4-5 = high.

Ratings based on published ingredient studies. Individual reactions may vary.