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Medicube Deep Vita A… vs The Inkey List Niaci… — Which Is Better? | Gracie

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Medicube Deep Vita A Retinol Serum vs The Inkey List Niacinamide

Medicube Deep Vita A Retinol Serum scores 8.9/9.8 vs The Inkey List Niacinamide at 6.4/9.8. Medicube Deep Vita A Retinol Serum wins for hydration.

Head to head

Medicube

Deep Vita A Retinol Serum

serum

8.9

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Ingredients

Niacinamide
Retinol
Hyaluronic Acid
Salicylic Acid

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Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.

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The Inkey List

Niacinamide

serumbudget

6.4

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Score comparison

Medicube Deep Vita A Retinol Serum takes this one, winning 3 of 5 attributes.

Medicube wins 3

Tied 2

The Inkey List wins 0

9.0

Medicube

The Inkey List

Ingredient face-off

9% overlap

53Medicube

5Shared

8The Inkey List

Only in Medicube Deep Vita A Retinol Serum

48 unique

Water Dipropylene Glycol Butylene Glycol Propanediol 2-Hexanediol Coco-Caprylate/Caprate Squalane Polyglyceryl-3 Distearate Dimethyl Isosorbide Panthenol+38 more

Shared ingredients

5 in common

Glycerin Niacinamide Pentylene Glycol Ethylhexylglycerin Xanthan Gum

Only in The Inkey List Niacinamide

3 unique

Aqua/Water Hyaluronic Acid Phenoxyethanol

Why Medicube Deep Vita A Retinol Serum comes out ahead

Where Medicube Deep Vita A Retinol Serum really shines is hydration efficacy, scoring 9.8 compared to The Inkey List Niacinamide's 4.6. 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 3.5 for The Inkey List Niacinamide. 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 the Inkey List Niacinamide relies on Niacinamide. Both approaches have merit, but the positioning and supporting ingredients make the difference.

Best for your skin type

Medicube Deep Vita A Retinol Serum is better if you have

Sensitive skin — the low-irritation formula keeps things gentle
Dry or dehydrated skin that craves moisture, thanks to Dipropylene Glycol
Anyone who prefers clean, well-vetted formulations

The Inkey List Niacinamide is better if you have

Sensitive skin — the low-irritation formula keeps things gentle
Anyone who prefers clean, well-vetted formulations

Value comparison

The Inkey List Niacinamide comes in at budget pricing with a 6.4 score, which is reasonable for what you get.

Our verdict

✶ Our verdict

+2.5 lead

Medicube Deep Vita A Retinol Serum wins this comparison with a meaningfully stronger ingredient profile and overall score.

8.9Medicube

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6.4The Inkey List

Frequently asked questions

Which is better: Medicube Deep Vita A Retinol Serum or The Inkey List Niacinamide?

Based on ingredient analysis, Medicube Deep Vita A Retinol Serum scores higher overall. See the full score breakdown above for details on each attribute.

Do Medicube Deep Vita A Retinol Serum and The Inkey List Niacinamide share ingredients?

Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.

What's the main difference between Medicube Deep Vita A Retinol Serum and The Inkey List Niacinamide?

The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.

Full analysis: Medicube Deep Vita A Retinol Serum→Full analysis: The Inkey List Niacinamide→

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