Researched by Helena DeMaria-Williams
Active IngredientSkin Brightening, Humectant, Cell-Communicating IngredientNiacinamide
INCI: Niacinamide
Niacinamide is a water-soluble form of vitamin B3 (nicotinamide) that is synthetically manufactured for cosmetic use. It works through multiple mechanisms: suppressing melanin transfer to skin cells to reduce hyperpigmentation, stimulating ceramide and fatty acid synthesis to strengthen the skin barrier, regulating sebum production, and exerting anti-inflammatory effects. It is one of the most well-researched and versatile active ingredients in skincare.
Typical Concentration
Best For Skin Types
CAS Number
98-92-0
What are the benefits of Niacinamide?
Is Niacinamide safe? Key considerations
Can Niacinamide cause irritation?
Low RiskNiacinamide is well-tolerated by most skin types, including sensitive skin. At very high concentrations (above 5%) some individuals may experience flushing or mild redness, particularly those with rosacea or reactive skin. This is distinct from niacin flush and is uncommon at typical cosmetic concentrations of 2–5%. No EU Annex restrictions apply.
Does Niacinamide increase sun sensitivity?
No RiskNiacinamide does not increase photosensitivity. It is safe to use morning and evening without mandatory SPF requirement due to the ingredient itself, though daily SPF is always recommended for hyperpigmentation management.
Is Niacinamide safe during pregnancy?
SafeNiacinamide is a B vitamin with a well-established safety profile. It is widely considered safe for use during pregnancy at cosmetic concentrations (2–10%). No known teratogenic effects at topical use levels. Consult a healthcare provider if in doubt.
How does Niacinamide work?
Niacinamide is a skin brightening, humectant, cell-communicating ingredient active used across a range of concentrations depending on the application and product format.
Particularly beneficial for all skin types and oily and acne-prone and hyperpigmentation and rosacea and sensitive and atopic dermatitis and anti-ageing concerns skin.
Individuals with known hypersensitivity to niacinamide or nicotinamide; use with caution at concentrations above 5% on highly reactive or rosacea-prone skin should review the considerations above before use.
How do you use Niacinamide in your routine?
A step-by-step guide to introducing Niacinamide into your skincare routine safely and effectively.
Choose the right concentration
Start with a product containing 2–5% for barrier repair, brightening and acne. Lower concentrations are better for beginners or sensitive skin.
Introduce gradually
Niacinamide is generally well tolerated. Start by applying once daily and adjust based on how your skin responds.
Apply morning or evening
Niacinamide does not increase sun sensitivity, so it can be used in either your morning or evening routine.
Follow with moisturiser
After Niacinamide has absorbed, apply a moisturiser to support your skin barrier. This is especially important when using active ingredients.
Science & Research
Research references for this ingredient are coming soon.
Which products contain Niacinamide?
Shop products that contain Niacinamide
Omega Water Cream
Supersize Omega Water Cream
10% Niacinamide Serum
Vitamin B, C and E Moisturiser
PHA Toner
20% Niacinamide Serum
Oily Skin Cleanser
PRO Itch Prone Skin Body Wash
Gentle Clear Triple Action Blemish Serum
Gentle Skin Cleanser
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Gentle Exfoliating Salicylic Acid Cleanser, For Face & Body
Hydrating Foaming Cream Cleanser
Niacinamide 10% + Zinc 1%
Multi-Peptide Eye Serum
Sulfur 10% Powder-to-Cream Concentrate
Soothing & Barrier Support Serum
