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Cosmia Crème anti-âge jour et nuit 4 en 1 scores 8.2/9.8 and IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles scores 8.4/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.2 points apart.
Scores last verified: June 2026
32 unique
10 in common
25 unique
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.
Active Ingredient Strength is another area of separation. IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles scores 4.7 here versus 4.2 for Cosmia Crème anti-âge jour et nuit 4 en 1. That difference comes down to how each formula is built — the ingredient list tells the story.
IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles brings Niacinamide, Tocopherol, and Tocopheryl Acetate as actives, while cosmia Crème anti-âge jour et nuit 4 en 1 relies on Ceramide Np, Tocopheryl Acetate, and Avena Sativa (Oat) Kernel Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Cosmia Crème anti-âge jour et nuit 4 en 1 is better if you have
IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles is better if you have
IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles comes in at premium pricing with a 8.4 score, which is solid value at that tier.
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Based on ingredient analysis, IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles 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.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.