MEGA-C™ 30% Vitamin C Brightening Mask
Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask scores 7.0/9.8 overall. It ranks highest in low irritation risk (9.5) and formulation safety (9.0).
✶ Hero ingredients
Silicone that smooths and protects
Pure vitamin C antioxidant
Softens and smooths
Score breakdown
Estimated — based on ingredient analysis. Scores refine as user reviews are added.
Scores last verified: July 2026
What makes Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask stand out
Kate Somerville MEGA-C™ 30% Vitamin C Brightening Mask is a solid serum with an overall score of 7.0/9.8. it delivers a well-rounded formulation that balances efficacy with gentleness. The formula leads with Dimethicone, Ascorbic Acid, Polysilicone-11 — ingredients that support the skin barrier and moisture levels.
It performs well on low irritation risk (9.5) and active strength (6.5). On the flip side, hydration could be stronger.
Is this right for you?
Great for
- ✓Sensitive skin — low irritation risk with a gentle formulation
- ✓Safety-conscious shoppers — clean formulation with minimal flags
- ✓Ingredient-aware buyers — transparent, well-documented formula
May not suit
- ⚠Very dry skin types looking for heavy-duty moisture
Key ingredients
- ✶Dimethicone
Softens and smooths — #1 in the INCI list
- ✶Ascorbic Acid
Works on your skin — #2 in the INCI list
- ✶Polysilicone-11
Softens and smooths — #3 in the INCI list
- ✶Hippophae Rhamnoides Fruit Oil
Softens and smooths — #5 in the INCI list
- ✶Carthamus Tinctorius (Safflower) Seed Oil
Softens and smooths — #7 in the INCI list
Full ingredient list
23 ingredients — listed in INCI order (highest concentration first)
Compare with similar products
- Lancôme Renergie C.R.X. Triple Serum Retinol9.7
- INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid9.7
- innisfree Vitamin C Brightening Serum-Infused Mask for Dark Spots9.7
- Skinfix barrier+ Triple Lipid Activating Serum With Plumping Peptides and Niacinamide9.6
- innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars9.6
Ingredient breakdown
- Works on your skin11
- Softens and smooths9
- Holds the formula together2
- Added scent1