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Moumoujus

PUERARIA LOBATA STARCH.

Valuable CAS 9005-25-8 / ABSORBENT, OPACIFYING

Pueraria Lobata Starch, derived from the kudzu plant, is a highly functional ingredient recognized for enhancing cosmetic formulations. It exhibits significant moisturizing capabilities, effectively reduces stickiness and oiliness for improved skin feel, and contributes to desirable product textures. This botanical starch also contains beneficial isoflavone compounds, offering potential antioxidant and skin-brightening effects.

Summary

absorbent viscosity controlling skin conditioning moisturizing emollient gelling agent oil-absorbing agent antioxidant (potential) skin whitening (potential)

Science

Mechanism of Action

Pueraria Lobata Starch operates through several mechanisms within skincare formulations. It forms a hydrating film on the skin's surface, providing moisturizing and emollient benefits. Concurrently, it functions as an oil-absorbing agent, effectively reducing excess sebum and mitigating stickiness for a more comfortable skin feel. As a polysaccharide, it acts as an effective thickening and gelling agent, thereby improving product viscosity, stability, and overall texture. Additionally, the presence of isoflavone compounds such as puerarin, daidzin, and daidzein contributes to its potential antioxidant properties and may offer skin-whitening benefits.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

2%

Key findings

  1. 01 A 2% gelatinized Pueraria lobata starch solution demonstrated high moisturizing properties, good spreadability, and minimal irritation. It significantly suppressed stickiness compared to water or glycerin, and showed a positive, albeit moderate, effect on improving rough skin.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Pueraria lobata starch's solubility and swelling power increase significantly when heated above 70°C. Once gelatinized, it exhibits high transparency, smooth viscosity characteristics, and enhanced stability with reduced syneresis, differentiating it from potato or corn starch.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that most polysaccharide gums, including Pueraria Lobata Starch, are safe for use in current cosmetic applications and concentrations. While the FDA's VCRP database in 2013 did not list its usage, a survey by the Personal Care Products Council suggested otherwise. No specific SCCS review has been identified.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

Pueraria Lobata Starch is a valuable multifunctional ingredient offering proven moisturizing, texture-enhancing, and oil-controlling benefits with a low risk of irritation, making it suitable for a wide array of skin types and cosmetic applications.

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