Comparison
COSRX The Vitamin C 23 Serum vs d'Alba Piedmont d'Alba First Spray Serum
Two serums that compete for the same routine slot. Below is the honest side by side: what makes each one different, who each one is best for, and how real users rate them.

COSRX
The Vitamin C 23 SerumPunchy 23% L-ascorbic acid serum for serious brightening. Not for sensitive skin, for vitamin C veterans.

d'Alba Piedmont
d'Alba First Spray SerumA cult double-layer mist-serum with Italian white truffle extract and squalane that hydrates and adds a soft glow, shake and spray for a quick pick-me-up any time of day.
Choose The Vitamin C 23 Serum if
- Your main concern is Hyperpigmentation or Dull.
- You have Oily skin.
- You want Vitamin C (L-AA) in the formula.
- High-strength vitamin C at a low price
Choose d'Alba First Spray Serum if
- Your main concern is Dehydration or Dullness.
- You have All or Dry skin.
- You want White Truffle Extract, Squalane, Sodium Hyaluronate in the formula.
- Convenient spray format layers well over makeup
At a glance
- Normal
- Combination
- Oily
- All
- Dry
- Normal
- Combination
- Sensitive
- Hyperpigmentation
- Dull
- Melasma
- Dehydration
- Dullness
- Uneven-Texture
- Vitamin C (L-AA)
- Hyaluronic Acid
- White Truffle Extract
- Squalane
- Hyaluronic Acid
- Sodium Hyaluronate
- High-strength vitamin C at a low price
- Visible brightening in weeks
- Convenient spray format layers well over makeup
- Lightweight double-layer formula hydrates without stickiness
- Vegan and cruelty-free
- Adds a subtle dewy finish
- Strong tingle is normal
- Oxidizes fast, buy small bottles
- Not for beginners
- Fragrance may not suit very sensitive skin
- Not a heavy moisturizer on its own
- Spray nozzle can be uneven at first use
Ingredient interactions
No flagged interactions between the key ingredients in these two products. Both share Hyaluronic Acid, which means you get overlapping benefits if you use them at different times of day.
What reviewers say
The Vitamin C 23 Serum
"The Vitamin C 23 is NOT for everyone. 23% is extremely strong and will cause a negative reaction if your skin is sensitive and not used to ..."
"It has a syrupy consistency, a stronger scent, and I didn't see any major improvements after two months of daily (evening only) usage."
d'Alba First Spray Serum
No reviews yet.
FAQ
What is the main difference between COSRX The Vitamin C 23 Serum and d'Alba Piedmont d'Alba First Spray Serum?
Both are serums. COSRX The Vitamin C 23 Serum focuses on Hyperpigmentation and Dull, while d'Alba Piedmont d'Alba First Spray Serum targets Dehydration and Dullness. Ingredient wise, COSRX The Vitamin C 23 Serum leads with Vitamin C (L-AA) and Hyaluronic Acid; d'Alba Piedmont d'Alba First Spray Serum uses White Truffle Extract and Squalane.
Can I use COSRX The Vitamin C 23 Serum and d'Alba Piedmont d'Alba First Spray Serum together?
They serve the same routine step, so pick one at a time rather than layering.
Do COSRX The Vitamin C 23 Serum and d'Alba Piedmont d'Alba First Spray Serum share ingredients?
Both feature Hyaluronic Acid. The rest of the formulas differ, which is where the choice usually comes down to.