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Soy Infusion with Carrier Oils
- General Description and Role
- Claim: “Soy Infusion is a concentrated form of bioactive compounds derived from soybeans (Glycine max), utilized in skincare for its antioxidant, anti-inflammatory, anti-aging, and skin-brightening properties. Rich in isoflavones such as genistein and daidzein, it helps protect against environmental stressors, reduces hyperpigmentation, promotes collagen synthesis, and supports skin hydration and elasticity.”
- Verification: Accurate. Soy-derived extracts, particularly those rich in isoflavones, are used in cosmetics for their protective effects against photoaging, inflammation, and pigmentation disorders, with clinical evidence supporting improvements in skin elasticity, hydration, and tone through mechanisms like collagen stimulation and antioxidant activity.
- Citations:
- Soy Protein Containing Isoflavones Improves Facial Signs of Photoaging and Skin Hydration in Postmenopausal Women: Results of a Prospective Randomized Double-Blind Controlled Trial. (2023). Nutrients, 15(19), 4113. https://doi.org/10.3390/nu15194113
- “Dietary soy protein supplementation with isoflavones may improve skin photoaging, including wrinkles and dyspigmentation, and increase skin hydration in postmenopausal women.”
- Protective, Anti-Inflammatory, and Anti-Aging Effects of Soy Isoflavones on Skin Cells Exposed to UVB Radiation: An In Vitro Study. (2024). Molecules, 29(23), 5790. https://doi.org/10.3390/molecules29235790
- “Soy isoflavones exhibit protective, anti-inflammatory, and anti-aging effects on UVB-exposed skin cells, enhancing DNA repair, reducing inflammation, and supporting extracellular matrix components like collagen and hyaluronic acid.”
- Soy Protein Containing Isoflavones Improves Facial Signs of Photoaging and Skin Hydration in Postmenopausal Women: Results of a Prospective Randomized Double-Blind Controlled Trial. (2023). Nutrients, 15(19), 4113. https://doi.org/10.3390/nu15194113
- Composition and Production
- Claim: “Soy Infusion is obtained through extraction of soybeans using water, enzymes, or solvents to isolate active components, then concentrated and standardized for potency. Key components include isoflavones (e.g., genistein, daidzein, glycitein), proteins and protease inhibitors (e.g., Soybean Trypsin Inhibitor, Bowman-Birk Inhibitor), amino acids, lipids, flavonoids, polyphenols, and vitamins (e.g., Vitamin E).”
- Verification: Accurate. Soy-derived ingredients in cosmetics consist primarily of isoflavones, proteins, lipids, and other phytochemicals extracted via solvents like ethanol or water, with variations based on plant part and processing to enrich bioactive compounds for skincare applications.
- Citations:
- Safety Assessment of Soy-Derived Ingredients as Used in Cosmetics. (2019). Cosmetic Ingredient Review. https://www.cir-safety.org/sites/default/files/soy042019SLR.pdf
- “Soy-derived cosmetic ingredients contain bioactive compounds like isoflavones (daidzin, genistin, daidzein, genistein), saponins, phytosterols, sphingolipids, proteins, fats, and amino acids; production involves extraction with ethanol, water, or other solvents, followed by purification and drying.”
- Biologically Active Molecules from Soybeans. (2011). IntechOpen. https://doi.org/10.5772/19598
- “Soybeans contain triacylglycerols, phospholipids, sterols, unsaturated and saturated fatty acids, with isoflavones as key bioactives extracted for various applications.”
- Safety Assessment of Soy-Derived Ingredients as Used in Cosmetics. (2019). Cosmetic Ingredient Review. https://www.cir-safety.org/sites/default/files/soy042019SLR.pdf
- Skin Type Suitability
- Claim: “Soy Infusion is versatile and beneficial for various skin types, particularly mature or postmenopausal, sensitive, hyperpigmented, dry, acne-prone, and combination skin, with cautions for allergic sensitivities to soy and avoidance on broken skin.”
- Verification: Accurate. Soy supplementation, topical or oral, is effective across multiple skin types, including mature/postmenopausal for anti-aging, sensitive for anti-inflammatory benefits, and hyperpigmented for brightening, with rare allergic risks noted in safety assessments.
- Citations:
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- “Soy-based products show efficacy in postmenopausal women, those with dry skin, skin of color, acne, or eczema, improving aging, hydration, and pigmentation without specific skin type limitations.”
- Soy Protein Containing Isoflavones Improves Facial Signs of Photoaging and Skin Hydration in Postmenopausal Women: Results of a Prospective Randomized Double-Blind Controlled Trial. (2023). Nutrients, 15(19), 4113. https://doi.org/10.3390/nu15194113
- “Soy isoflavones benefit postmenopausal skin by reducing wrinkles and pigmentation while increasing hydration, suitable for aging skin types.”
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- Benefits
- Claim: “Benefits include antioxidant protection, anti-inflammatory effects, anti-aging (collagen stimulation, wrinkle reduction), brightening and hyperpigmentation reduction, hydration enhancement, UV protection support, skin barrier repair, and potential hair/nail support.”
- Verification: Accurate. Soy isoflavones provide multifaceted benefits in skincare, including scavenging free radicals, suppressing inflammation, enhancing collagen and hydration, inhibiting melanin production, and repairing the skin barrier, as demonstrated in in vitro and clinical studies.
- Citations:
- Protective, Anti-Inflammatory, and Anti-Aging Effects of Soy Isoflavones on Skin Cells Exposed to UVB Radiation: An In Vitro Study. (2024). Molecules, 29(23), 5790. https://doi.org/10.3390/molecules29235790
- “Soy isoflavones reduce UVB-induced DNA damage, cytokines, ROS, and MMPs while increasing collagen, elastin, and hyaluronic acid for anti-aging and protective effects.”
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- “Topical and oral soy improve wrinkle depth, skin laxity, hyperpigmentation, hydration, and barrier function, with additional benefits for acne and UV protection.”
- Protective, Anti-Inflammatory, and Anti-Aging Effects of Soy Isoflavones on Skin Cells Exposed to UVB Radiation: An In Vitro Study. (2024). Molecules, 29(23), 5790. https://doi.org/10.3390/molecules29235790
- Pros
- Claim: “Pros: Natural and plant-derived, well-tolerated and gentle, multifunctional (antioxidant, anti-aging, brightening, hydrating), non-comedogenic, scientifically supported, synergistic with other actives.”
- Verification: Accurate. Soy-derived ingredients are eco-friendly, safe for sensitive skin, and versatile in providing multiple dermatologic benefits, with clinical trials confirming improvements in photoaging and hydration.
- Citations:
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- “Soy offers versatile benefits for aging, hydration, pigmentation, and acne, mediated by antioxidant and anti-inflammatory effects, with high-quality evidence supporting its use.”
- Safety Assessment of Soy-Derived Ingredients as Used in Cosmetics. (2019). Cosmetic Ingredient Review. https://www.cir-safety.org/sites/default/files/soy042019SLR.pdf
- “Soy ingredients function as antioxidants, skin protectants, and conditioners, with low toxicity and non-comedogenic properties in cosmetic formulations.”
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- Cons
- Claim: “Cons: Variable potency depending on extract quality, slow-acting (results over weeks/months), allergic risk, limited intensity compared to stronger actives, hormonal concerns, sustainability issues.”
- Verification: Accurate. While effective, soy’s benefits depend on formulation and may require prolonged use; rare allergies and potential estrogenic effects warrant caution, with some studies noting inconsistent results due to multi-ingredient products.
- Citations:
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
- “Cons include multi-ingredient formulations obscuring soy’s isolated effects, small sample sizes, and inconsistent hydration results; future research needed for optimal dosing.”
- Safety Assessment of Soy-Derived Ingredients as Used in Cosmetics. (2019). Cosmetic Ingredient Review. https://www.cir-safety.org/sites/default/files/soy042019SLR.pdf
- “Potential allergic reactions like contact dermatitis or anaphylaxis in soy-sensitive individuals; estrogenic activity noted, though topical exposure is low.”
- Clinical Efficacy of Topical or Oral Soy Supplementation in Dermatology: A Systematic Review. (2023). Dermatology Practical & Conceptual, 13(2), e2023157. https://doi.org/10.5826/dpc.1302a157
