The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
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Formulation Summary
A water-free, high-potency vitamin C treatment containing 23% pure L-ascorbic acid suspended in a squalane-based silicone vehicle. The anhydrous (water-free) formula keeps the ascorbic acid stable as a powder suspension. Hyaluronic acid spheres at 2% provide hydration. The gritty, paste-like texture is intentional and dissolves on application.
The Ordinary solves L-ascorbic acid's stability problem by removing water entirely. In water-based formulas, L-ascorbic acid degrades rapidly. As a dry suspension in squalane and esters, the ascorbic acid remains stable until it contacts the skin's moisture. The 23% concentration is at the high end of the efficacy range. Research shows diminishing returns above 20%, with significantly increased irritation. The HA spheres provide localized hydration. The formula uses BHT as an antioxidant preservative for the oil phase.
Quick Facts
Designed For
- •Experienced vitamin C users who want maximum potency at minimum cost
- •Those who have built tolerance to lower vitamin C concentrations
- •Users willing to work with a challenging texture for strong active delivery
- •Budget-conscious shoppers seeking L-ascorbic acid at 23%
- •People who use vitamin C as a nighttime treatment
May Not Suit
- •Vitamin C beginners or those with sensitive skin (23% is very high and will sting)
- •Users who dislike gritty textures or complex application routines
- •Those who need a serum that layers well under other products (pilling is common)
- •People who want a morning vitamin C serum (texture does not sit well under makeup)
- •Users who avoid BHT (synthetic antioxidant preservative)
Key Ingredients
| Ingredient | Concentration | Function |
|---|---|---|
| L-Ascorbic Acid | 23%brand-confirmed | Pure, unmodified vitamin C. The most potent and well-researched form. At 23%, this exceeds the commonly cited optimal range of 10-20%. Research shows antioxidant benefit plateaus around 20%, so the extra 3% primarily increases irritation risk without proportional efficacy gain. The water-free format keeps it stable. |
| Sodium Hyaluronate (HA Spheres) | 2%brand-confirmed | Encapsulated hyaluronic acid that provides hydration as the spheres dissolve on the skin. At 2%, this is a meaningful concentration. Helps offset the drying effect of concentrated ascorbic acid. |
| Squalane | — | Listed second after ascorbic acid, making it the primary vehicle. Provides emollient benefits and creates the suspension medium that keeps the ascorbic acid powder stable. |
The Formulation Explained
Water-free stability
L-ascorbic acid degrades in water through oxidation. By suspending it as a powder in anhydrous (water-free) squalane and esters, The Ordinary prevents this degradation entirely. The trade-off is the gritty texture. The ascorbic acid dissolves and activates when it contacts moisture on the skin's surface.
23% concentration
At 23%, this is one of the highest-concentration vitamin C products available. Research generally shows optimal antioxidant benefit at 15-20%. Concentrations above 20% increase irritation without proportional efficacy improvement. The brand likely chose 23% for maximum potency positioning. Users sensitive to vitamin C should build tolerance gradually.
Texture challenges
The gritty, sandy texture is the most discussed aspect of this product. The ascorbic acid exists as visible particles in the suspension. Users need to pat (not rub) the product into skin and wait for the particles to dissolve. Pilling under subsequent products is widely reported. Most users find applying it to bare skin at night works best.
Price vs. potency equation
At $8 for 30ml of 23% L-ascorbic acid, this is the most cost-effective high-concentration vitamin C available. SkinCeuticals CE Ferulic delivers 15% at $182. The trade-off is entirely in texture, elegance, and user experience. The active ingredient itself is comparable in potency.
Ingredients to Know
Synthetic antioxidant used to prevent oxidation of the oil phase. Debated safety profile; some studies raise concerns, others confirm safety at cosmetic use levels. Some consumers choose to avoid it.
Modified silica that acts as a thickener and suspending agent. Helps keep the ascorbic acid powder evenly distributed in the formula.
Coconut-derived emollient used as a silicone alternative. Lightweight and non-greasy. Contributes to the formula's slip.
Plant-derived polysaccharide (from konjac root) used to form the hyaluronic acid spheres. Acts as an encapsulating and hydrating agent.
User Feedback Patterns
Full INCI List
15 ingredients · Click "Show full list" to view
About The Ordinary
The Ordinary discloses exact concentrations: 23% L-ascorbic acid and 2% HA spheres. Full INCI lists are provided. The brand explains the anhydrous format and its stability benefits on the product page.
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Sources
- • https://theordinary.com/en-us/vitamin-c-suspension-23-ha-spheres-2-vitamin-c-100451.html
- • https://incidecoder.com/products/the-ordinary-vitamin-c-suspension-23-ha-spheres-2
- • https://skinsort.com/products/the-ordinary/vitamin-c-suspension-23-ha-spheres-2
- • https://www.amazon.com/ORDINARY-Vitamin-Suspension-Spheres-L-Ascorbic/dp/B07Y556CPP
- • https://www.deciemchatroom.com/the-ordinary-vitamin-c-23-reviews/
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.