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Where mixsoon's Master Serum blends multiple ferments, the Soybean Milk Serum is intentionally single-ingredient-focused: fermented soybean extract at high concentration in a simple serum base. This mirrors the brand's other single-ingredient serums (the original Galactomyces 5X Serum being the reference product) and appeals to users wanting to layer a dedicated soybean active rather than a blend. At $55.60 for 50ml, it's priced at the upper tier of the mixsoon line.
Soybean extract is rich in isoflavones (phytoestrogens), amino acids, and antioxidants. For skin, it's a studied ingredient for firmness support and brightness, with particular relevance for menopausal or hormonal skin changes. The single-focus formulation delivers a high concentration of soybean benefits in one focused product.
Fermented soybean extract delivers isoflavones (genistein, daidzein) that have mild phytoestrogenic effects on skin, supporting firmness and collagen production in hormone-influenced skin. Amino acids from fermentation support skin texture. Antioxidants protect against oxidative aging. Daily use over 8 to 12 weeks produces visible firmness and brightening improvements.
After cleansing and toner, apply 2 to 3 drops to clean skin. Pat gently. Use AM and PM. Follow with moisturizer. Can be layered with other serums (vitamin C AM, soybean PM, for example) or with mixsoon's Master Serum for comprehensive coverage.
Generally low risk for topical application, but patch test first if you have a significant soy allergy. Ingested soy allergies don't always translate to topical reactions, but individual reactions vary.
Different products in the same line. Bean Cream is a moisturizer with bean ferment as one of several actives. Soybean Milk Serum is a dedicated serum with soybean as the focused active. Use them together: serum first, cream second, for layered bean-forward routine.
Phytoestrogens in soy are particularly relevant for hormonal skin changes. Not a hormone replacement, but supports skin during hormonal shifts. Many menopausal users report firmness and elasticity improvements.
Consult your OB. Some practitioners recommend avoiding phytoestrogen-heavy skincare during pregnancy; others consider topical phytoestrogens safe. Err on the side of caution if uncertain.
Hydration: 1 to 2 weeks. Firmness: 8 to 12 weeks. Brightness: 4 to 6 weeks.
Pair with mixsoon Bean Cream for full bean-ferment routine, or mixsoon Master Serum. Browse the mixsoon collection, Korean serums.
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