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Medicube Deep Vita A Retinol Serum scores 8.9/9.8 vs Trader Joe's Hair Serum at 6.4/9.8. Medicube Deep Vita A Retinol Serum wins for hydration.
Medicube Deep Vita A Retinol Serum takes this one, winning 4 of 5 attributes.
Scores last verified: April 2026
52 unique
Where Medicube Deep Vita A Retinol Serum really shines is hydration efficacy, scoring 9.8 compared to Trader Joe's Hair Serum's 5.1. With Dipropylene Glycol, Butylene Glycol, and Glycerin in its top ingredients, Medicube Deep Vita A Retinol Serum delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. Medicube Deep Vita A Retinol Serum scores 6.7 here versus 2.1 for Trader Joe's Hair Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Medicube Deep Vita A Retinol Serum brings Niacinamide, Allantoin, and Dipotassium Glycyrrhizate as actives, while trader Joe's Hair Serum relies on Rubus Fruticosus (Blackberry) Fruit Extract, Euterpe Oleracea (Acai) Fruit Extract, and Helianthus Annuus (Sunflower) Seed Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Medicube Deep Vita A Retinol Serum is better if you have
Trader Joe's Hair Serum is better if you have
Medicube Deep Vita A Retinol Serum wins this comparison with a meaningfully stronger ingredient profile and overall score.
Based on ingredient analysis, Medicube Deep Vita A Retinol Serum 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.