COSRX The 6 Peptide Skin Booster Serum Dupes & Cheaper Alternatives
What Reddit recommends instead — 132 products with similar benefits · Analyzed 116 threads · Updated August 25, 2026
For Dehydration
For Redness / Irritation
For Skin Barrier
For Anti-Aging
For Texture / Pores
More alternatives

Beauty of Joseon
Glow Serum: Propolis + Niacinamide7 shared traits·87 mentions
Niacinamide regulates oil and brightens dull, uneven skin tone

Cos De BAHA
Tranexamic Acid 10% Serum6 shared traits·66 mentions
Fades dark spots and melasma with 10% tranexamic acid

Beauty of Joseon
Glow Deep Serum Rice + Alpha-Arbutin5 shared traits·59 mentions
Alpha arbutin and niacinamide brighten and fade hyperpigmentation effectively

Some By Mi
Retinol Intense Reactivating Serum5 shared traits·27 mentions
Gentle enough for retinol beginners with sensitive skin

Melano CC
Intensive Anti-Spot Essence4 shared traits·196 mentions
Air-tight tube packaging prevents oxidation, preserving vitamin C potency

3 shared traits·36 mentions
Effective on red/purple post-acne marks and acne scars

3 shared traits·35 mentions
Gentle mix of centella, niacinamide, and tranexamic acid

Dr. Althea
Vitamin C Boosting Serum3 shared traits·30 mentions
High 63% vitamin C concentration boosts brightening and scar fading

Dr. Althea
Gentle Vitamin C Serum3 shared traits·26 mentions
Lightweight and non-irritating for sensitive skin
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