Dr.Althea Niacinamide Serum 15% — Vegan Korean pore-refining, texture-smoothing serum

Dr.Althea 15% Niacinamide Purity Serum is a lightweight, vegan serum formulated with 15% niacinamide plus zinc and botanical extracts to help refine pores, even skin tone, and improve skin texture.

This Korean-formulated serum combines a high concentration of niacinamide with Zinc PCA and Dr.Althea’s MELACUT complex to target enlarged pores, uneven tone and surface texture without heavy residues. Designed for fast absorption and everyday layering, the formula is vegan and uses EWG Green grade ingredients, avoiding artificial colors and fragrances.

How quickly will I notice changes in pore appearance and skin texture?

Visible improvements depend on consistency and starting skin condition; many users see subtle smoothing and reduced pore visibility within a few weeks of regular use, with more pronounced effects over 6–8 weeks. The serum’s high 15% niacinamide level supports barrier health and surface refinement over time.

• Apply twice daily after cleansing and toning for best results.
• Lightweight texture absorbs rapidly so it layers well under moisturizers and sunscreen.
• Zinc PCA aids sebum regulation which can reduce pore congestion.

Can I combine this serum with other active ingredients safely?

Dr.Althea’s formula is designed to work with common skincare steps; niacinamide pairs well with many ingredients, but layering with potent actives requires attention. Avoid mixing with highly acidic treatments at the same time to minimize irritation for sensitive skin.

• Safe to layer with hydrating hyaluronic acid and most moisturizers.
• Use vitamin C (ascorbic acid) at different times of day if concerned about pH interaction.
• Introduce retinoids gradually and monitor for dryness or irritation.

What makes the MELACUT Complex and Zinc PCA beneficial here?

The MELACUT Complex blends botanical extracts such as Portulaca Oleracea, grape seed and rice ferment filtrate to support brightness and hydration while aiding skin calm. Zinc PCA complements niacinamide by helping to control excess oil and support a balanced skin surface.

• Portulaca Oleracea Extract contributes soothing and antioxidant properties.
• Grape seed and rice ferment deliver brightening and moisture support.
• Zinc PCA helps manage sebum and supports a clearer-looking complexion.

How does the texture feel and how should I use it in my routine?

The serum is formulated to be non-sticky and fast-absorbing, suitable for morning and evening routines. A few drops are enough to cover the face; follow with moisturizer and sunscreen in the morning.

• Dispense 2–3 drops, smooth over face and neck until absorbed.
• Use morning and night after cleansing and toning.
• Finish with sunscreen in daytime to protect improvements in tone and texture.

Who is this for? This serum is aimed at people seeking a high-strength niacinamide treatment to refine pores, even skin tone and improve surface texture without heavy creams. It suits normal to oily and combination skin types, those looking for vegan and EWG Green grade formulations, and anyone who wants a fast-absorbing layerable serum in a Korean skincare routine. If you have very sensitive skin, patch-test first or introduce gradually to ensure tolerance.