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. Sunday Riley A+ High-Dose Retinoid Serum scores 7.5 here versus 7.0 for Sunday Riley Ice Ceramide Moisturizing Cream. That difference comes down to how each formula is built — the ingredient list tells the story.
Sunday Riley A+ High-Dose Retinoid Serum brings Retinol, Ubiquinone, and Honey Extract as actives, while sunday Riley Ice Ceramide Moisturizing Cream relies on Cocos Nucifera (Coconut) Fruit Extract, Ceramide Np, and Ceramide Eop. 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. Sunday Riley A+ High-Dose Retinoid Serum gets the nod here with its 8.0 overall score — you're getting more for a similar outlay.