15% Niacinamide Purity Serum

Dr. Althea

Where to buy Possibly in stock

About this product

The Dr. Althea 15% Niacinamide Purity Serum is a serums, essence, ampoule. Our analysis of its 19 ingredients (13 low-risk) rates it Excellent (100/100). Based on its ingredients, it looks well-suited to dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
19
Low-risk
13
Fragrance
Fragrance-free
Origin
South Korea
Data updated
Jun 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 4/3
Good for dry skin
Butylene Glycol Glycerin Trehalose Zinc PCA
Caution for dry skin
Xanthan Gum Glycerin Polyglyceryl-10 Laurate
Oily/Acne-Prone Skin No data
Sensitive Skin 1/2
Good for sensitive skin
Glycerin
Caution for sensitive skin
Butylene Glycol Glycerin

Ingredients list

19 total
Lower hazard (1) Higher hazard (3)
All19 Skin Conditioning17 Solvent5 Humectant5 Fragrance4 Antioxidant3 Viscosity Controlling3 Hair Conditioning2 Skin Protecting2
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Pentylene Glycol
(Skin Conditioning, Solvent)
1
A
Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
1,2-Hexanediol
(Solvent)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
B
Polyglyceryl-10 Laurate
(Skin Conditioning, Emulsifying, Surfactant)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
Rosmarinus Officinalis Leaf Oil
(Fragrance, Skin Conditioning)
3
Zinc PCA
(Skin Conditioning, Humectant)
Melaleuca Alternifolia Leaf Oil
(Antioxidant, Perfuming)
1
Portulaca Oleracea Extract
(Skin Conditioning)
Vitis Vinifera Seed Extract
(Anti Seborrheic, Antimicrobial, Antioxidant, Oral Care, Skin Protecting, Uv Absorber)
Saururus Chinensis Extract
(Skin Conditioning)
Rice Ferment Filtrate
(Skin Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Antioxidants
Shields skin from free radical damage.
Vitamin E
Protects skin and soothes irritation.
Niacinamide
Strengthens, smooths, and brightens skin.
Zinc
Helps control oil and supports healing.

Benefits

Barrier RepairStrengthen and restore your skin's natural barrier.
HydratingBoosts hydration and relieves dry, tight skin.
Redness ReducingSoothes visible redness and calms irritation.
Anti-AgingSoftens lines and helps skin look youthful.
Acne FightingFights acne and helps prevent breakouts.
Reduces IrritationEases discomfort and supports skin resilience.
Good For Oily SkinBalances oil and helps reduce shine.
Scar HealingImproves the look of marks and scars.

Concerns

Not fungal acne (malassezia) safe
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Pentylene Glycol
Skin conditioning, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningSolvent
Niacinamide
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningSmoothing
1,2-Hexanediol
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Solvent
Polyglyceryl-10 Laurate
Skin conditioning, Emulsifying
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmulsifyingSurfactant
Trehalose
Flavoring agent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentHumectantMoisturising
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Disodium EDTA
Chelating agent, Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentViscosity controlling
Rosmarinus Officinalis Leaf Oil
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioning
Zinc PCA
Skin conditioning, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 Skin conditioningHumectant
Melaleuca Alternifolia Leaf Oil
Antioxidant, Perfuming
Limited public safety data.Read moreShow less
EWG N/A AntioxidantPerfuming
Portulaca Oleracea Extract
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Vitis Vinifera Seed Extract
Anti seborrheic, Antimicrobial
Limited public safety data.Read moreShow less
EWG N/A Anti seborrheicAntimicrobialAntioxidantOral careSkin protectingUv absorber
Saururus Chinensis Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
+ 2 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Officially notified as a cosmetic in Malaysia (NPRA). Government registration record.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Niacinamide 2–5% (up to 10%)

Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.

Niacinamide

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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