This 2.7 fluid ounce Houttuynia Cordata Serum from ONE THING is a vegan facial ampoule formulated for acne-prone and oily skin types. The serum centers on heartleaf extract, also known as Houttuynia cordata, a plant-based ingredient traditionally used in Korean skincare for its soothing properties. It also contains hyaluronic acid, which provides hydration without adding heaviness or greasiness to the skin. The lightweight, water-like texture absorbs quickly and aims to calm irritation, reduce redness, and support the skin barrier. This product is designed to deliver moisture while helping to manage excess sebum, making it suitable for those who experience breakouts or sensitivity. The formula is free from animal-derived ingredients and aligns with vegan standards. It comes in a simple, no-frills bottle that reflects the brand’s focus on minimal, effective skincare. The ampoule can be incorporated into daily routines as a hydrating and soothing step, applied after cleansing and before moisturizer. It is particularly beneficial for individuals seeking a gentle, non-irritating product that addresses both hydration and blemish control. The absence of artificial fragrances and harsh additives further supports its suitability for reactive or stressed skin. This serum is a practical option for those looking to simplify their regimen with a single multi-purpose ampoule that targets redness, oiliness, and dehydration simultaneously. Its affordable pricing and straightforward formulation make it accessible for regular use without unnecessary complexity.