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Cos De BAHA Niacinamide 10% + Zinc 1% Serum ingredients: is it worth it?
A competent, inexpensive niacinamide serum—not a pore-erasing miracle and not a complete treatment formula.

A competent, inexpensive niacinamide serum—not a pore-erasing miracle and not a complete treatment formula.
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The efficacy score is 3.8/5: niacinamide is listed near the top and the product is marketed as 10%, giving the formula a credible brightening, barrier-support, and oil-control basis; zinc PCA, glycerin, propanediol, sodium hyaluronate, allantoin, and dipotassium glycyrrhizate provide useful supporting functions. However, the provided list is a retailer-style major-ingredients list rather than a confirmed complete INCI, so concentration, pH, preservative architecture, and the actual position of the botanical extracts cannot be fully verified. The formula also lacks a dedicated acne drug active and should not be credited with permanently shrinking pores.
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DemythSkin rates Cos De BAHA Niacinamide 10% + Zinc 1% Serum 3.8/5 for efficacy and 4.3/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (2)⌄
FULL INGREDIENT LIST⌄
Apply a moderate amount and gently massage for better absorption. Major Ingredients Organic Aloe Barbadensis Leaf Extract, Niacinamide, Propanediol, Glycerin, 1,2-Hexanediol, Zinc PCA, Sodium Hyaluronate, Allantoin, Dipotassium Glycyrrhizate, Organic Hamamelis Virginiana (Witch Hazel) Leaf Extract, Organic Rosmarinus Officinalis (Rosemary) Extract, Organic Eucalyptus Globulus Leaf Extract, Organic Thymus Vulgaris (Thyme) Extract, Organic Aspalathus Linearis Extract. Ingredients subject to change at manufacturer&
WHAT EACH INGREDIENT DOES (14)⌄
- Organic Aloe Barbadensis Leaf Extract
- Soothing botanical solvent
- Niacinamide
- Brightening barrier-support active
- Propanediol
- Humectant and solvent
- Glycerin
- Water-binding humectant
- 1,2-Hexanediol
- Solvent and preservative booster
- Zinc PCA
- Sebum-control humectant
- Sodium Hyaluronate
- Hyaluronic acid humectant
- Allantoin
- Soothing skin protectant
- Dipotassium Glycyrrhizate
- Licorice-derived soothing agent
- Organic Hamamelis Virginiana (Witch Hazel) Leaf Extract
- Astringent botanical extract
- Organic Rosmarinus Officinalis (Rosemary) Extract
- Antioxidant botanical extract
- Organic Eucalyptus Globulus Leaf Extract
- Botanical fragrance extract
- Organic Thymus Vulgaris (Thyme) Extract
- Botanical antioxidant extract
- Organic Aspalathus Linearis Extract
- Antioxidant botanical extract
EXTERNAL CITATIONS
Niacinamide: Well-established topical vitamin B3 ingredient for pigment support, barrier function, and sebum-related concerns.
Zinc PCA: Sebum-control and humectant-support ingredient with more limited clinical evidence than niacinamide.
Sodium Hyaluronate: Topical humectant that supports temporary surface hydration.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
Cos De BAHA Niacinamide 10% + Zinc 1% Serum: common questions
Is Cos De BAHA Niacinamide 10% + Zinc 1% Serum worth it?
Cos De BAHA Niacinamide 10% + Zinc 1% Serum scores 3.8 out of 5.0 for efficacy (Modest) and 4.3 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. A competent, inexpensive niacinamide serum—not a pore-erasing miracle and not a complete treatment formula.
What are the key active ingredients in Cos De BAHA Niacinamide 10% + Zinc 1% Serum?
Cos De BAHA Niacinamide 10% + Zinc 1% Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does Cos De BAHA Niacinamide 10% + Zinc 1% Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in Cos De BAHA Niacinamide 10% + Zinc 1% Serum as documented irritants: Organic Eucalyptus Globulus Leaf Extract.
How is Cos De BAHA Niacinamide 10% + Zinc 1% Serum scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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