INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid vs IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid scores 9.7/9.8 vs IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening at 9.0/9.8. INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid wins for active ingredients.
Head to head

Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid

Expert Vitamin C 25% Antioxidant Serum for Brightening
Score comparison
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid edges ahead, winning 2 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
IOPE WINSIrritation Risk
INNBEAUTY PROJECT WINSActive Ingredient Strength
INNBEAUTY PROJECT WINSIngredient Transparency
TIEFormulation Safety
TIEIngredient face-off
19% overlapOnly in INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid
34 unique
Shared ingredients
8 in common
Only in IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening
18 unique
Why INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid comes out ahead
Where INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid really shines is active ingredient strength, scoring 9.8 compared to IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening's 7.0. Its formula features Tetrahexyldecyl Ascorbate, Niacinamide, and Ascorbic Acid in high positions, signalling meaningful concentrations.
Irritation Risk is another area of separation. INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid scores 9.5 here versus 7.7 for IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening. That difference comes down to how each formula is built — the ingredient list tells the story.
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid brings Tetrahexyldecyl Ascorbate, Niacinamide, and Ascorbic Acid as actives, while iOPE Expert Vitamin C 25% Antioxidant Serum for Brightening relies on Ascorbic Acid, Gluconolactone, and Glutathione. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Targeting specific concerns like aging or uneven tone — Tetrahexyldecyl Ascorbate does the heavy lifting
- Anyone who prefers clean, well-vetted formulations
IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Targeting specific concerns like aging or uneven tone — Ascorbic Acid does the heavy lifting
- Anyone who prefers clean, well-vetted formulations
Value comparison
Both sit in the premium bracket, so value comes down to formulation quality. INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid gets the nod here with its 9.7 overall score — you're getting more for a similar outlay.
Our verdict
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid edges ahead with a slightly stronger formulation, but IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening is still a solid pick.


Frequently asked questions
Which is better: INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid or IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening?
Based on ingredient analysis, INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid scores higher overall. See the full score breakdown above for details on each attribute.
Do INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid and IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid and IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.