COSRX The Blue Peptide Bakuchiol Plump Glow Serum vs medicube Deep Vita A Retinol Serum
COSRX The Blue Peptide Bakuchiol Plump Glow Serum scores 8.8/9.8 and medicube Deep Vita A Retinol Serum scores 8.6/9.8 — a near-tie where your skin type decides the winner.
Head to head
The Blue Peptide Bakuchiol Plump Glow Serum
Deep Vita A Retinol Serum
Score comparison
These two are neck and neck — just 0.2 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
medicube WINSIrritation Risk
TIEActive Ingredient Strength
COSRX WINSIngredient Transparency
medicube WINSFormulation Safety
TIEIngredient face-off
30% overlapOnly in COSRX The Blue Peptide Bakuchiol Plump Glow Serum
19 unique
Shared ingredients
16 in common
Only in medicube Deep Vita A Retinol Serum
37 unique
Why these two are neck and neck
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. medicube Deep Vita A Retinol Serum scores 9.8 here versus 9.4 for COSRX The Blue Peptide Bakuchiol Plump Glow Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
COSRX The Blue Peptide Bakuchiol Plump Glow Serum brings Niacinamide, Bakuchiol, and Adenosine as actives, while medicube Deep Vita A Retinol Serum relies on Niacinamide, Allantoin, and Dipotassium Glycyrrhizate. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
COSRX The Blue Peptide Bakuchiol Plump Glow Serum is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Targeting specific concerns like aging or uneven tone — Niacinamide does the heavy lifting
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
Value comparison
COSRX The Blue Peptide Bakuchiol Plump Glow Serum comes in at mid-range pricing with a 8.8 score, which is solid value at that tier.
Our verdict
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Frequently asked questions
Which is better: COSRX The Blue Peptide Bakuchiol Plump Glow Serum or medicube Deep Vita A Retinol Serum?
Based on ingredient analysis, COSRX The Blue Peptide Bakuchiol Plump Glow Serum scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The Blue Peptide Bakuchiol Plump Glow Serum and medicube Deep Vita A Retinol Serum share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between COSRX The Blue Peptide Bakuchiol Plump Glow Serum and medicube Deep Vita A Retinol Serum?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.