Dr.Althea [EU]15% Niacinamide Purity Serum 30ml

Niacinamide, also known as vitamin B3, is a multitasking active that works at the surface level to help visibly minimise the appearance of pores, smooth uneven skin texture, and reduce the look of discolouration and dullness. At 15%, Dr.Althea's Purity Serum delivers one of the higher concentrations available in leave-on skincare, making it particularly well-suited for those looking to address persistent oiliness, enlarged pores, or uneven tone.

Niacinamide is widely regarded as one of the gentlest high-performance skincare actives, and 15% is generally well tolerated. That said, if your skin is particularly reactive or you are new to niacinamide, we recommend introducing the serum gradually — start by using it every other evening and build up to twice-daily use as your skin acclimatises. Always patch test 24 hours before first full application.

Yes, but with a small caveat. Pure vitamin C (L-ascorbic acid) and niacinamide are best used at separate routine steps — for example, vitamin C in the morning and niacinamide in the evening — to maintain the stability and efficacy of both actives. However, if your vitamin C product uses a stabilised derivative (such as ascorbyl glucoside or ethyl ascorbic acid), they can generally be layered without concern.

Apply the 15% Niacinamide Purity Serum after cleansing and toning, before moisturiser. As a general rule, layer from thinnest to thickest texture. This serum's lightweight fluid consistency means it should sit early in your routine — before heavier essences, creams, or oils. In the morning, always finish with a broad-spectrum sunscreen of SPF 30 or higher.

Skincare results vary between individuals depending on skin type, concern severity, and consistency of use. Most users report a noticeable improvement in skin clarity, oiliness, and pore appearance within 4–6 weeks of twice-daily use. For concerns such as hyperpigmentation or deeper textural irregularities, allow 8–12 weeks of consistent application for meaningful visible change.

Yes, the 15 Niacinamide Purity Serum is formulated to meet both ethical standards and rigorous safety regulations:


VEGAN-FRIENDLY: This serum is 100% vegan. It is formulated entirely without animal-derived ingredients or by-products. We utilize high-purity Niacinamide (Vitamin B3) and botanical extracts to deliver a clean, plant-based formula that supports a clear and refined-looking complexion without compromising our commitment to animal welfare.


EU COMPLIANT: Yes, this product is fully compliant with EU Cosmetics Regulations. It has undergone comprehensive safety assessments to ensure all ingredients, including the 15% Niacinamide concentration, meet the strict quality and safety standards required for sale within the European Union. Our formula is designed to be gentle yet effective, focusing on improving skin texture and radiance while adhering to international regulatory guidelines.