Science
Mechanism of Action
This extract functions as a potent antioxidant, neutralizing free radicals to mitigate skin aging. It actively promotes collagen synthesis, vital for maintaining skin firmness and elasticity, while stimulating cell renewal to reduce the appearance of fine lines. Beyond structural benefits, it deeply moisturizes, improves skin tone by reducing erythema, regulates sebum production, and can provide an astringent effect. Research also indicates its potential to support skin regeneration and wound healing by influencing keratinocyte activity and stimulating fibroblast and capillary formation.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 A 12-week study using a micellar extract from common bean sprouts demonstrated a 22.31% improvement in skin hydration, significantly outperforming placebo (3.52%) and a reference cream (13.96%). It also enhanced skin elasticity parameters R2 by 13.30% and R5 by 12.33%, surpassing both placebo and synthetic anti-wrinkle creams. The study also noted superior moisturizing, anti-aging, and skin-brightening effects.
- 02 An 8-week trial using a dry extract from powdered common bean seeds showed improved skin whitening, reduced redness (erythema), regulated sebum secretion, and effective moisturization.
- 03 An 8-week application of a w/o emulsion containing concentrated ethanolic red kidney bean extract revealed antioxidant, skin smoothening, moisturizing, whitening, and anti-wrinkle properties.
Transparency
Dusting Analysis
There is no data indicating that Phaseolus Vulgaris Extract is commonly associated with dusting issues in cosmetic formulations.
The Formula
Formulation
Stability
This extract can be successfully formulated into stable water-in-oil (w/o) emulsions. While a precise optimal pH range for cosmetic stability is not fully defined, the protein components within kidney bean extracts exhibit minimal solubility around pH 4.5–5.0 and increased solubility at pH 3.0 and pH 8.0, suggesting pH-dependent behavior. Cream formulations containing the extract have shown stable pH profiles in basic conditions over time.
Safety
Safety Profile
Phaseolus Vulgaris Extract is generally considered safe for cosmetic application. However, individuals with sensitive skin should perform a patch test due to the potential for minor allergic reactions such as redness or itching. Regulatory bodies, including those in the European Union, permit its use with appropriate concentration guidelines. EWG Skin Deep identifies 'Phaseolus Vulgaris (Kidney Bean) Seed Extract' with low concern across categories like cancer, allergies, immunotoxicity, and developmental toxicity. For food applications, a dried aqueous extract has received 'Generally Recognized As Safe' (GRAS) status from the FDA (GRN 480) for daily intake up to 10 grams.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Phaseolus Vulgaris Extract is a valuable multi-benefit ingredient offering significant improvements in skin hydration, elasticity, and overall tone, making it suitable for a wide range of precision skincare formulations.
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References
Sources