The Ordinary Ascorbyl Glucoside Solution 12% vs Vitamin C Suspension 23%
Same brand, opposite approaches. Ascorbyl Glucoside 12% is a water-based derivative the brand calls lower in irritation potential but less potent; Vitamin C Suspension 23% is pure L-ascorbic acid in a water-free base that the brand says will tingle.
Checked against brand ingredient lists on and against dermatology sources (American Academy of Dermatology, FDA, peer-reviewed studies). How we research · Editorial policy · 8 sources
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How this page was made: we compared what each brand publishes (actives, strengths, full ingredient lists, directions and prices) and checked the claims against dermatology guidance and published studies, all linked at the bottom. We haven’t tested these products on our own skin, we don’t publish star ratings, and a commission never decides a pick. Our methodology.
Not medical advice. This page compares cosmetic products. If you have a skin condition, use prescription treatment, or are pregnant or breastfeeding, ask a dermatologist or your doctor before starting something new.
Short answer
pick Ascorbyl Glucoside Solution 12% ($14.80, 30 ml) if your skin is sensitive, you are new to vitamin C or you want a light water-based serum. Pick Vitamin C Suspension 23% ($8.10, 30 ml) if your skin is tolerant and you want the form of vitamin C with the most research.
Last updated Ingredient lists checked 2026-11-11Prices checked November 2026
Check The Ordinary Ascorbyl Glucoside Solution price (opens in a new tab)Check The Ordinary Vitamin C Suspension price (opens in a new tab)
The numbers side by side
| The Ordinary Ascorbyl Glucoside Solution 12% | The Ordinary Vitamin C Suspension 23% + HA Spheres 2% | |
|---|---|---|
| Price (brand site) | $14.80 for 30 ml | $8.10 for 30 ml |
| Vitamin C form | Ascorbyl glucoside 12% (derivative) | L-ascorbic acid 23% (direct) |
| Base | Water-based solution | Water-free suspension in squalane and esters |
| Ingredient count | 12 | 15 |
| Feel | Lightweight liquid | Slightly granular; tingling expected |
The Ordinary sells both and describes the trade-off plainly on its own pages: the derivative is gentler and more stable in water but less potent; the direct form is stronger but suits experienced users. We compared both ingredient lists and the research. We haven’t tested them.
How do they differ, line by line?
| Ascorbyl Glucoside Solution 12% | Vitamin C Suspension 23% + HA Spheres 2% | |
|---|---|---|
| Price (brand site) | $14.80 for 30 ml | $8.10 for 30 ml |
| Vitamin C form | Ascorbyl glucoside 12% (derivative) | L-ascorbic acid 23% (direct) |
| Base | Water-based solution | Water-free suspension in squalane and esters |
| Ingredient count | 12 | 15 |
| Feel | Lightweight liquid | Slightly granular; tingling expected |
| Brand on sensitive skin | Less irritation potential than direct vitamin C | Direct vitamin C “may not be ideal for sensitive skin” |
| Mixing | Brand: don’t use with niacinamide | Brand: don’t use with niacinamide, retinoids, peptides, direct acids, copper peptides |
What does each do well, and where does it fall short?
The Ordinary Ascorbyl Glucoside Solution 12%: pros
- Gentler by design, per the brand
- Light, water-based texture layers easily
- Stable in water
The Ordinary Ascorbyl Glucoside Solution 12%: cons
- Less potent than L-ascorbic acid, per the brand
- Weaker independent evidence
- Costs more than the 23%
The Ordinary Vitamin C Suspension 23% + HA Spheres 2%: pros
- L-ascorbic acid, the most-researched form
- $8.10
- Water-free base keeps it stable, per the brand
The Ordinary Vitamin C Suspension 23% + HA Spheres 2%: cons
- Tingling expected
- 23% is above the 20% absorption ceiling found by Pinnell et al.
- Gritty texture; long don’t-mix list
Which one fits your skin?
This is a tolerance decision. If your skin reacts easily, The Ordinary’s own guidance points to the glucoside. If it doesn’t, the 23% suspension gives you L-ascorbic acid for less money. A middle path the brand suggests is diluting the 23% into a cream at first.
Pick The Ordinary Ascorbyl Glucoside Solution 12% if…
- your skin is sensitive or new to vitamin C
- you want a light serum that layers under moisturizer
- you want fewer mixing restrictions
Pick The Ordinary Vitamin C Suspension 23% + HA Spheres 2% if…
- your skin tolerates acids and tingling
- you want L-ascorbic acid specifically
- you want the cheapest option
What’s in each bottle?
Copied from each brand’s own product page (or the sunscreen’s Drug Facts) on November 11, 2026. Brands reformulate, so the carton in your hand is the final word.
The Ordinary Ascorbyl Glucoside Solution 12%
- Key actives
- Ascorbyl glucoside 12% (brand-stated; a vitamin C derivative)
- Base
- Water-based solution
- Brand price
- $14.80 · 30 ml
Full ingredient list
Aqua (Water), Ascorbyl Glucoside, Propanediol, Aminomethyl Propanol, Triethanolamine, Isoceteth-20, Xanthan Gum, Dimethyl Isosorbide, Ethoxydiglycol, Trisodium Ethylenediamine Disuccinate, 1,2-Hexanediol, Caprylyl Glycol.
The Ordinary product page · Check price on Amazon (opens in a new tab)
The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
- Key actives
- L-ascorbic acid 23% (brand-stated), sodium hyaluronate
- Base
- Water-free silicone/ester suspension (slightly gritty)
- Brand price
- $8.10 · 30 ml
- Brand notes
- Brand: tingling can be expected; can be diluted into a cream; patch test advised; not to be used in the same routine as its niacinamide, retinoids, peptides or direct acids.
Full ingredient list
Ascorbic Acid, Squalane, Isodecyl Neopentanoate, Isononyl Isononanoate, Coconut Alkanes, Ethylene/Propylene/Styrene Copolymer, Ethylhexyl Palmitate, Silica Dimethyl Silylate, Sodium Hyaluronate, Glucomannan, Coco-Caprylate/Caprate, Butylene/Ethylene/Styrene Copolymer, Acrylates/Ethylhexyl Acrylate Crosspolymer, Trihydroxystearin, BHT.
The Ordinary product page · Check price on Amazon (opens in a new tab)
How strong is the evidence for each form?
L-ascorbic acid has the most research: Pinnell[4] et al. (2001) mapped how it gets into skin (pH below 3.5, absorption peaking at 20%), and Lin[5] et al. (2005) studied it with vitamin E and ferulic acid. Ascorbyl glucoside wasn’t among the derivatives Pinnell tested, and we didn’t find an independent clinical trial of it. A 2017 review by Al-Niaimi[6] and Chiang describes clinical data on topical vitamin C in general as limited.
Which one suits your skin type?
- Sensitive: Ascorbyl Glucoside 12%, after a patch test.
- Dry: the 23% suspension’s squalane base, or the glucoside under a cream.
- Oily: the glucoside’s water-based texture will feel lighter.
- Uses niacinamide: keep both of these in a separate routine from niacinamide, as the brand advises.
Who should skip it?
- Anyone already using a retinoid in the same routine: The Ordinary says not to use the 23% suspension with retinoids. Use vitamin C in the morning and the retinoid at night.
- Sensitive skin starting with the 23%: The brand expects tingling and says direct vitamin C may not suit sensitive skin.
How can you spend less?
The 23% suspension is the cheaper bottle at $8.10. The glucoside costs $14.80 but is the one more people can use daily without stinging.
What should you know before you start?
- Patch test first. The American Academy of Dermatology suggests applying a new product to a quarter-sized area twice a day for 7 to 10 days and stopping if you react. AAD: how to test skin care products.
- Add one new product at a time, and give it time: the AAD says many anti-aging products take 6 weeks to 3 months to show results. AAD: get the most from anti-aging products.
What do people ask most?
Is ascorbyl glucoside real vitamin C?
Can I dilute the 23% suspension?
Can I use either with niacinamide?
Where this comes from
We opened and read every source below for this page. Ingredient lists, strengths, directions and prices come from each brand’s own product page; health and usage guidance comes from the American Academy of Dermatology, the FDA, the National Eczema Association and peer-reviewed studies (via PubMed). Prices checked: November 2026; confirm on the seller’s site before you buy.
- The Ordinary (brand page): The Ordinary Ascorbyl Glucoside Solution 12% (theordinary.com)
- The Ordinary (brand page): The Ordinary Vitamin C Suspension 23% + HA Spheres 2% (theordinary.com)
- The Ordinary (brand guide): Vitamin C in skincare, direct vs derivative forms (theordinary.com)
- Pinnell et al. 2001, Dermatologic Surgery: Topical L-ascorbic acid percutaneous absorption (pubmed.ncbi.nlm.nih.gov)
- Lin et al. 2005, Journal of Investigative Dermatology: Ferulic acid stabilizes vitamins C and E (pubmed.ncbi.nlm.nih.gov)
- Al-Niaimi & Chiang 2017, Journal of Clinical and Aesthetic Dermatology: Topical vitamin C and the skin (pubmed.ncbi.nlm.nih.gov)
- AAD: How to test skin care products (aad.org)
- AAD: How to fade dark spots in darker skin tones (aad.org)
Related
Vitamin C forms explained: L-ascorbic acid vs the derivatives
Short answer: L-ascorbic acid is the form with the most research, but it only gets into skin from a very acidic formula and it oxidizes easily. Derivatives such as ascorbyl glucoside are steadier and gentler, with weaker evidence. Sensitive skin should usually start with a derivative.
comparisonThe Ordinary Vitamin C Suspension 23% vs SkinCeuticals C E Ferulic
Both are pure L-ascorbic acid. The Ordinary suspends 23% in a water-free base for $8.10 and warns it tingles; SkinCeuticals pairs 15% with vitamin E and ferulic acid, the combination tested in a 2005 peer-reviewed study, at a much higher price.
guideCan you use niacinamide with vitamin C or retinol?
Short answer: niacinamide with retinol is widely accepted; even Paula’s Choice says they pair well. Niacinamide with vitamin C is where brands disagree, so the simple default is vitamin C in the morning and niacinamide or retinol at night.
guideNiacinamide vs vitamin C for dark spots: which should you try first?
Short answer: start with daily sunscreen (tinted, if you have a darker skin tone), then add one product. Niacinamide is the gentler first try with clearer clinical data on spots; L-ascorbic acid vitamin C is the stronger antioxidant but can sting.
best ofThe best first retinol for your skin type
Your first retinoid should be low strength, used every other night, and match your skin type. Here are four starting points, from an $8.10 stated-strength retinol to single-dose capsules, and who should skip each.