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IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening scores 9.0/9.8 vs LANEIGE Water Sleeping Mask EX at 8.2/9.8. IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening wins for hydration.
IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening edges ahead, winning 3 of 5 attributes.
Scores last verified: June 2026
24 unique
19 unique
Where IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening really shines is hydration efficacy, scoring 6.8 compared to LANEIGE Water Sleeping Mask EX's 9.8. With Propylene Glycol, Propanediol, and Betaine in its top ingredients, IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening scores 7.0 here versus 4.9 for LANEIGE Water Sleeping Mask EX. That difference comes down to how each formula is built — the ingredient list tells the story.
IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening brings Ascorbic Acid, Gluconolactone, and Glutathione as actives, while lANEIGE Water Sleeping Mask EX relies on Niacinamide, Allantoin, and Caffeine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening is better if you have
LANEIGE Water Sleeping Mask EX is better if you have
At premium pricing with a score of 9.0, IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening delivers strong value. LANEIGE Water Sleeping Mask EX sits at the mid-range level with a 8.2 score — the extra cost doesn't translate to better scores here.
IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening edges ahead with a slightly stronger formulation, but LANEIGE Water Sleeping Mask EX is still a solid pick.
Based on ingredient analysis, IOPE Expert Vitamin C 25% Antioxidant Serum for Brightening scores higher overall. See the full score breakdown above for details on each attribute.
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.