Good Molecules 5% Niacinamide Serum with Ectoin is a lightweight, water‑based serum formulated to address enlarged pores and blemish‑prone skin. The serum combines 5% niacinamide (vitamin B3) with ectoin, a natural amino acid derivative known for its skin‑conditioning and moisture‑retention properties. This blend works to support a balanced, smoother skin surface by targeting visible pore size and uneven texture while maintaining comfortable hydration levels.

Niacinamide at this concentration is recognized for helping regulate sebum production and improving the appearance of pores over time. It also contributes to a more even skin tone by reducing post‑blemish marks. Ectoin provides additional hydrating and soothing benefits, helping the skin retain moisture without adding oiliness or heaviness. The formula is free from fragrance, dyes, and oils, making it suitable for combination, oily, and normal skin types that may be sensitive to heavy formulations.

The serum has a thin, fast‑absorbing consistency that layers easily under moisturizers or sunscreen. It can be applied twice daily as part of a regular skincare routine. A few drops are sufficient for the entire face after cleansing and before a moisturizer. Because it is non‑comedogenic and gentle, it can also be used in combination with other active ingredients such as retinoids or exfoliating acids, though those with very sensitive skin may prefer to introduce it gradually.

This product is intended for those looking for a straightforward, effectively dosed serum to help refine pore appearance, manage shine, and improve overall skin clarity without harsh or irritating additives. The formulation prioritizes simplicity and efficacy, using well‑studied actives at reasonable levels to minimize the risk of over‑exfoliation or sensitization.