INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid vs Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid scores 9.7/9.8 vs Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment at 4.7/9.8. 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

EradiKate 10% Sulfur Acne Spot Treatment
Score comparison
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid takes this one, winning 4 of 5 attributes.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
INNBEAUTY PROJECT WINSIrritation Risk
INNBEAUTY PROJECT WINSActive Ingredient Strength
INNBEAUTY PROJECT WINSIngredient Transparency
INNBEAUTY PROJECT WINSFormulation Safety
TIEIngredient face-off
0% overlapOnly in INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid
42 unique
Shared ingredients
0 in common
Only in Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment
6 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 Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment's 2.5. Its formula features Tetrahexyldecyl Ascorbate, Niacinamide, and Ascorbic Acid in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid scores 6.3 here versus 3.0 for Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment. 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 kate Somerville EradiKate 10% Sulfur Acne Spot Treatment relies on Camphor and Salicylic Acid. 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
Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Anyone who prefers clean, well-vetted formulations
Value comparison
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid comes in at premium pricing with a 9.7 score, which is solid value at that tier.
Our verdict
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid wins this comparison with a meaningfully stronger ingredient profile and overall score.


Frequently asked questions
Which is better: INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid or Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment?
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 Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment 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 Kate Somerville EradiKate 10% Sulfur Acne Spot Treatment?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.