Head to head
The Ordinary Azelaic Acid Suspension 10% vs The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
Same comparison whichever way you searched it: The Ordinary Vitamin C Suspension 23% + HA Spheres 2% vs The Ordinary Azelaic Acid Suspension 10%.
The bottom lineThe Ordinary Vitamin C Suspension 23% + HA Spheres 2% does more across the board (it leads on hydration, brightening / tone, anti-aging), while The Ordinary Azelaic Acid Suspension 10% is the simpler, more pared-back pick.
Reach for The Ordinary Vitamin C Suspension 23% + HA Spheres 2% if you want the actives; The Ordinary Azelaic Acid Suspension 10% if you want fewer ingredients doing less, gently.
Answer nine questions and the app picks between them for your skin.
Cost per use
€0.15 an applicationabout 150 uses from 30 ml
a usual amount, not a measured dose: 3-5 drops, about 0.2 ml; from €23 as read in September 2026 and a 30 ml pack.
how this is counted
About €0.15 an application, about 150 uses from 30 ml.
- a convention: no trial has measured a serum dose
- Measured or assumed: the rule, and the dose table
€0.04 an applicationabout 150 uses from 30 ml
a usual amount, not a measured dose: 3-5 drops, about 0.2 ml; from €6 as read in September 2026 and a 30 ml pack.
how this is counted
About €0.04 an application, about 150 uses from 30 ml.
- a convention: no trial has measured a serum dose
- Measured or assumed: the rule, and the dose table
Per application, The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is the cheaper: €0.04 against €0.15.
Which should you pick?
Pick Azelaic Acid Suspension 10% if
- you are dealing with breakouts and oiliness
- you prefer a simpler, more minimal formula
Pick Vitamin C Suspension 23% + HA Spheres 2% if
- plump, lasting hydration is what you want
- fine lines and firmness are the goal
- you want the more affordable option
What each delivers
Side by side
| Azelaic Acid Suspension 10% | Vitamin C Suspension 23% + HA Spheres 2% | |
|---|---|---|
| Type | Serum | Serum |
| Key actives | Azelaic Acid, Isohexadecane, Vitamin E | Vitamin C (LAA), Squalane, Isononyl Isononanoate |
| Texture | A light, fast-absorbing texture that layers cleanly under the rest of your routine, with no greasy film. | A light, fast-absorbing texture that layers cleanly under the rest of your routine, with no greasy film. |
| Fragrance | None detected | None detected |
| Feeds Malassezia | 1 measured / none inferred | none measured / 1 inferred |
| Pregnancy | No flagged actives | No flagged actives |
| Ingredients | 17 listed | 15 listed |
| Price | ~€23 | ~€6 |
What's in one but not the other
The two labels share 1 of the 31 ingredients between them. The actives are where they part company.
What each one adds acts on The living epidermis, The stratum corneum for The Ordinary Azelaic Acid Suspension 10% and The dermis, The stratum corneum for The Ordinary Vitamin C Suspension 23% + HA Spheres 2%. That is the layer each is understood to act on, not how deep it travels.
Only in The Ordinary Azelaic Acid Suspension 10%
Both
nothing
Only in The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is a different bottle only for: vitamin c (laa), squalane, isononyl isononanoate, hyaluronic acid, coco-caprylate/caprate, ethylhexyl palmitate. They share nothing.
Which keeps longer
a tube and one light-sensitive active: the packaging is doing work here.
where this comes from
The pack form is read off the packshot; the light-sensitive actives are the base's photostability rows, sourced on each glossary page; the period after opening (not printed) is read off the maker's page, never a reseller's. Catalogue checked September 2026.
a tube and one light-sensitive active: the packaging is doing work here.
where this comes from
The pack form is read off the packshot; the light-sensitive actives are the base's photostability rows, sourced on each glossary page; the period after opening (not printed) is read off the maker's page, never a reseller's. Catalogue checked September 2026.
Neither keeps better: one light-sensitive active each, and both are tubes.
The molecule doing the work
Better for…
- Dark spots & uneven toneVitamin C Suspension 23% + HA Spheres 2%
- Fine lines & firmnessVitamin C Suspension 23% + HA Spheres 2%
- Breakouts & congestionAzelaic Acid Suspension 10%
- Dryness & dehydrationVitamin C Suspension 23% + HA Spheres 2%
Who each suits
- The Ordinary Azelaic Acid Suspension 10%
- combination, oily, normal · avoid with acne-prone skin, very dry skin (needing an occlusive) and very sensitive skin
- The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
- dry, combination, oily, sensitive, normal · avoid with acne-prone skin, fungal acne prone, rosacea and very dry skin (needing an occlusive)
The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is the cheaper of the two (~€6 vs ~€23).
Ready to pick one?
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Common questions
Is The Ordinary Azelaic Acid Suspension 10% or The Ordinary Vitamin C Suspension 23% + HA Spheres 2% better for dark spots & uneven tone?
For dark spots & uneven tone, The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is the stronger pick by our read of the two formulas. The Ordinary Vitamin C Suspension 23% + HA Spheres 2% does more across the board (it leads on hydration, brightening / tone, anti-aging), while The Ordinary Azelaic Acid Suspension 10% is the simpler, more pared-back pick. Reach for The Ordinary Vitamin C Suspension 23% + HA Spheres 2% if you want the actives; The Ordinary Azelaic Acid Suspension 10% if you want fewer ingredients doing less, gently.
Which is cheaper, The Ordinary Azelaic Acid Suspension 10% or The Ordinary Vitamin C Suspension 23% + HA Spheres 2%?
The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is the cheaper of the two (~€6 vs ~€23).
Can I use The Ordinary Azelaic Acid Suspension 10% and The Ordinary Vitamin C Suspension 23% + HA Spheres 2% together?
They are both serums, so you would normally pick one rather than layer both in the same step. You can keep both and alternate them (morning and night, or on different days) if you like variety, but you do not need two.
What the scene shows
The cross-section at the top of this page is not decoration and not a diagram of the skin in general: it places the molecules these two are sold on at the layer each is understood to act on. The Ordinary Azelaic Acid Suspension 10% is placed by Azelaic Acid (the living epidermis), Isohexadecane (the stratum corneum), Vitamin E (the stratum corneum). The Ordinary Vitamin C Suspension 23% + HA Spheres 2% is placed by Vitamin C (LAA) (the dermis), Squalane (the stratum corneum), Isononyl Isononanoate (the stratum corneum). A layer is where an ingredient does its work, never how deep it travels, and never a claim about how well it works.
Compare it with…
46 duels are built for this serum, Celimax The Vita A Retinal Shot Tightening Booster and CeraVe Resurfacing Retinol Serum among them: type a name, or pick one below.