These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Hydration Efficacy is another area of separation. Drunk Elephant A-Shaba Complex Retinol Eye Serum with Caffeine + Copper Peptides scores 6.7 here versus 5.8 for INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid. 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 drunk Elephant A-Shaba Complex Retinol Eye Serum with Caffeine + Copper Peptides relies on Caffeine, Saccharomyces/Xylinum/Black Tea Ferment, and Niacinamide. Both approaches have merit, but the positioning and supporting ingredients make the difference.
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 8.4 overall score — you're getting more for a similar outlay.