Specially formulated for intimate apparel, this gentle, skin-friendly, and mildly neutral formula matches the pH balance of a woman's intimate skin. It is free of irritating alkalis, fluorescent agents, phosphorus, and pigments. It washes underwear without irritating delicate skin, making it safe for sensitive skin and pregnant women to use daily. Clothes are not stiff after washing and leave no residue or irritation. 2. Targeted removal of stubborn stains: Effectively removes common stains from intimate apparel, including menstrual blood, vaginal discharge, sweat, milk stains, body oils, and everyday yellowing. The fine foam has strong penetrating power; a gentle rub with cold water is enough to break down stubborn protein-based stains without damaging the fabric. 3. Antibacterial and deodorizing, long-lasting freshness: Enriched with natural antibacterial cleaning ingredients, it effectively inhibits common bacteria that grow on intimate apparel, removing odors and fishy smells caused by stuffiness. It leaves a light, pleasant fragrance after washing, and underwear stays fresh and clean after drying, eliminating musty smells and yellowing. 4. Protects fabrics without deformation or damaging elasticity. Unlike ordinary laundry soaps that are strong and alkaline, this gentle formula protects the elastic fibers, lace, modal, and pure cotton fabrics of underwear. Repeated washing will not cause stiffness, yellowing, or damage to the elasticity of underwear, extending its lifespan. 5. Easy to rinse with no residue, gentle on intimate health. The low-foaming, easy-rinse design allows for complete rinsing with 2-3 rinses of water, leaving no soap scum residue. This avoids residual chemicals coming into contact with intimate areas, reducing the risk of itching and discomfort from the source. 6. A high-value 4-pack for everyday household use. Suitable for washing pure cotton, modal, and lace underwear, especially during menstruation, and for cleaning clothes with blood stains. Also suitable for baby bibs and underwear. Ideal for business trips and travel. Individually packaged for convenient carrying. Each 1g bar is enough for one person for about a month. The 4-pack is perfect for multiple family members for long-term use. Suitable for carrying and keeping at home. A better value than the same product in supermarkets.