Ingredient Encyclopedia

Reviewed by Thank Me Now Skincare Editor · Last updated: September 2025 Niacinamide (Vitamin B3) is one of the most researched and versatile skincare ingredients. Known for its ability to calm redness, minimise pores, and support a healthy skin barrier, it's a go-to for all skin types, from sensitive to acne-prone. What is Niacinamide? Niacinamide is a water-soluble form of Vitamin B3 that works with your skin's natural processes to strengthen its barrier, improve hydration, and visibly smooth texture. It is non-acidic and typically well-tolerated, even at higher concentrations. Key Benefits Reduces appearance of pores by regulating sebum production (PubMed) Brightens dull or uneven tone and fades dark spots (PMC) Soothes redness and strengthens the skin barrier (DermNet NZ) Improves skin elasticity and texture over time Balances oil without over-drying, making it ideal for acne-prone skin Who Should Use It? Oily or combination skin Sensitive or redness-prone skin Acne-prone or breakout-prone skin Mature skin seeking smoother texture and even tone Who Should Avoid It? Those who experience irritation at high concentrations (>10%) People using multiple strong actives simultaneously — reduce frequency to avoid barrier stress How to Use It in a Routine Use AM or PM after cleansing, before moisturiser Pairs well with hyaluronic acid, peptides, ceramides If using with strong acids or retinoids, alternate days or apply in different routines Verdict Niacinamide is one of the safest, most effective daily actives for all skin types — perfect for calming redness, improving texture, and boosting radiance. 👉 Ready to add Niacinamide to your routine? Try our Hydrating Glow Serum — formulated to soothe, hydrate, and restore balance. FAQs Is Niacinamide safe during pregnancy?Yes, topical niacinamide is generally considered safe, but consult your doctor if you have concerns. Can I combine Niacinamide with Retinol or Vitamin C?Yes — dermatologists often recommend pairing them. Use Vitamin C in the morning and Niacinamide morning or evening. Retinol can be used at night with Niacinamide layered before or after. How long until I see results?Most people see noticeable improvement in tone and texture in 4–8 weeks with consistent use. References Draelos ZD. “The Effect of 2% Niacinamide on Facial Sebum Production.” J Cosmet Laser Ther. 2006. Bissett DL et al. “Topical Niacinamide Reduces Hyperpigmentation and Improves Skin Appearance.” Dermatol Surg. 2004. DermNet NZ: Niacinamide Overview About the Author: This article is reviewed by the Thank Me Now Skincare Editorial Team, who specialise in ingredient science and routine optimisation. All guides are updated regularly with the latest research. Related Guides How to Layer Niacinamide and Retinol (Without Irritation) Niacinamide vs Azelaic Acid – Redness & Tone Niacinamide vs Vitamin C – Can You Use Them Together?