Serum expert duo age
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Cosmia Bio Serum expert duo age scores 5.9/9.8 overall. It ranks highest in low irritation risk (9.5) and ingredient transparency (8.8).
✶ Hero ingredients
Coconut-derived emollient
Draws in moisture
One of the most effective humectants
Score breakdown
Estimated — based on ingredient analysis. Scores refine as user reviews are added.
Scores last verified: July 2026
What makes Cosmia Bio Serum expert duo age stand out
Cosmia Bio Serum expert duo age is a decent serum with an overall score of 5.9/9.8. it takes a straightforward approach to skincare. The formula leads with Caprylic/Capric Triglyceride, Propanediol, Glycerin — ingredients that support the skin barrier and moisture levels.
It performs well on hydration (7.2) and low irritation risk (9.5). On the flip side, active ingredient concentration is on the lighter side.
Is this right for you?
Great for
- ✓Dry or dehydrated skin — strong moisture-binding profile
- ✓Sensitive skin — low irritation risk with a gentle formulation
- ✓Safety-conscious shoppers — clean formulation with minimal flags
May not suit
- ⚠Those seeking potent actives — this leans more maintenance than treatment
Key ingredients
- ✶Caprylic/Capric Triglyceride
Softens and smooths — #2 in the INCI list
- ✶Propanediol
Draws in moisture — #3 in the INCI list
- ✶Glycerin
Draws in moisture — #4 in the INCI list
- ✶Gluconolactone
Works on your skin — #6 in the INCI list
- ✶Argania Spinosa Kernel Oil
Softens and smooths — #7 in the INCI list
Full ingredient list
31 ingredients — listed in INCI order (highest concentration first)
Compare with similar products
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- Skinfix barrier+ Triple Lipid Activating Serum With Plumping Peptides and Niacinamide9.6
- innisfree Gentle Retinol + Salicylic Acid Acne Serum for Blemishes + Post-Acne Scars9.6
Ingredient breakdown
- Softens and smooths7
- Draws in moisture6
- Formula balancers4
- Holds the formula together4
- Added scent4
- Other ingredient2
- Works on your skin2
- Locks moisture in1
- Keeps the product fresh1