COSRX The 6 Peptide Skin Booster Serum vs Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide
COSRX The 6 Peptide Skin Booster Serum scores 8.5/9.8 and Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide scores 8.6/9.8 — a near-tie where your skin type decides the winner.
Head to head
The 6 Peptide Skin Booster Serum
The Giving Essence Brightening & Hydrating Treatment with Niacinimide
Score comparison
These two are neck and neck — just 0.1 points apart.
Scores last verified: July 2026
Attribute battle
Hydration Efficacy
COSRX WINSIrritation Risk
TIEActive Ingredient Strength
Then I Met You WINSIngredient Transparency
COSRX WINSFormulation Safety
TIEIngredient face-off
30% overlapOnly in COSRX The 6 Peptide Skin Booster Serum
28 unique
Shared ingredients
12 in common
Only in Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide
20 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.
Active Ingredient Strength is another area of separation. Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide scores 7.2 here versus 6.5 for COSRX The 6 Peptide Skin Booster Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide brings Galactomyces Ferment Filtrate, Niacinamide, and Aronia Melanocarpa Fruit Extract as actives, while cOSRX The 6 Peptide Skin Booster Serum relies on Niacinamide, Acetyl Hexapeptide-8, and Dipeptide Diaminobutyroyl Benzylamide Diacetate. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
COSRX The 6 Peptide Skin Booster 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
Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide 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 — Galactomyces Ferment Filtrate does the heavy lifting
Value comparison
COSRX The 6 Peptide Skin Booster Serum comes in at mid-range pricing with a 8.5 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 6 Peptide Skin Booster Serum or Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide?
Based on ingredient analysis, Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide scores higher overall. See the full score breakdown above for details on each attribute.
Do COSRX The 6 Peptide Skin Booster Serum and Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide 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 6 Peptide Skin Booster Serum and Then I Met You The Giving Essence Brightening & Hydrating Treatment with Niacinimide?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.