Phaseolus Angularis Seed Extract, commonly known as Red Bean or Adzuki Bean extract, is a multi-functional botanical that provides robust antioxidant protection and clinically proven anti-wrinkle benefits. Its natural saponin content helps regulate sebum production, making it an ideal choice for addressing both photoaging and skin texture refinement.
- INCI Name:
- Phaseolus Angularis Seed Extract
- Chemical/Scientific Name:
- Phaseolus angularis (syn. Vigna angularis) Seed Extract
- Common Aliases:
- Adzuki Bean Extract, Red Bean Extract
| Category: | Active Substances |
| Source Origin: | Plant-based (Seeds of the Adzuki bean) |
| Comedogenic Rating: | 0 |
| Primary Industries: | Skincare, Haircare, Cosmeceuticals |
| Solubility: | Water-soluble |
At a Glance: Properties & Effects
| Anti-Aging/Renewal | |
| Hydration/Moisture | |
| Sebum Control | |
| Irritation Risk |
- Primary Benefits:
- Reduces the appearance of fine lines and eye wrinkles through collagen support.
- Neutralizes free radicals to mitigate UVB-induced photoaging.
- Helps clear excess sebum and debris via natural saponin surfactants.
- Enhances skin texture and smoothness through mild enzymatic exfoliation properties.
- Potential Risks:
- Minimal risk, as it is a non-sensitizing food-grade botanical.
Biological Action & Cosmetic Profile
Botanical extracts derived from the Adzuki bean function primarily as defensive agents against environmental oxidative stress. These seeds contain a high concentration of polyphenols, particularly proanthocyanidins and flavonols, which scavenge reactive oxygen species (ROS) generated by UV exposure. At a cellular level, the extract has been shown to inhibit the expression of matrix metalloproteinases (MMP-1 and MMP-3), the specific enzymes responsible for breaking down collagen fibers. By suppressing these enzymes, the extract helps maintain the structural integrity of the dermal matrix.
Dermatological research indicates that this ingredient also plays a significant role in skin barrier maintenance. The presence of complex carbohydrates and Betaine provides humectant properties, drawing moisture into the stratum corneum to prevent transepidermal water loss. Furthermore, natural saponins found within the seed act as gentle, plant-derived cleansers. These molecules possess a unique structure that allows them to emulsify oils and lift impurities without the harshness associated with synthetic surfactants, making the extract particularly effective for pore refinement in oily or acne-prone skin types.
Phytochemical analysis further reveals that the extract is rich in vitamins and minerals, including zinc and selenium. These micronutrients support the skin’s natural repair processes and help soothe inflammatory responses. When applied topically, the synergistic effect of these compounds promotes a more uniform skin tone and helps reduce the erythema (redness) often associated with environmental irritation.
Routine Integration
- Synergies:
- Pore Care: Pairs exceptionally well with Kaolin or Bentonite to deeply cleanse pores and control oil.
- Anti-Aging: Works effectively alongside Niacinamide to improve skin texture and barrier function.
- Soothing: Combines with Allantoin or Panthenol to calm stressed or UV-exposed skin.
- Conflicts:
- No known biochemical conflicts; safe for use with most active ingredients, including Salicylic Acid and Retinol.
Clinical Consensus & Safety
Clinical trials have validated the efficacy of this botanical for anti-aging applications. A notable 12-week randomized, double-blind, placebo-controlled study demonstrated that a cream containing Phaseolus Angularis Seed Extract significantly improved skin roughness and reduced wrinkle depth in the periorbital (eye) area. While the Cosmetic Ingredient Review (CIR) has not yet published a standalone monograph for the seed extract, it has assessed Phaseolus Angularis Seed Starch as safe for use in cosmetics. The extract is widely recognized as safe (GRAS) in food applications, and dermatological assessments consistently report a lack of sensitization or irritation at standard cosmetic concentrations (typically 0.1% to 5%).
Does Red Bean extract help with acne?
While not a primary acne medication, the extract contains natural saponins that help regulate sebum and clear pore-clogging debris. Its anti-inflammatory properties can also help reduce the redness associated with active breakouts.
Can this ingredient be used on sensitive skin?
Yes. Because it is a natural, food-derived botanical with soothing properties, it is generally very well-tolerated by sensitive skin types and is often used in calming formulations.
How does it differ from physical red bean powder?
Physical powder acts as a mechanical exfoliant to scrub the skin surface. The extract, however, is a concentrated liquid form that delivers bioactive compounds like polyphenols and antioxidants deep into the skin without physical friction.