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SOLANUM TUBEROSUM STARCH.

Valuable CAS 9005-25-8 / ABSORBENT, BINDING, BULKING, VISCOSITY CONTROLLING

Solanum Tuberosum Starch, derived from potatoes, is a versatile ingredient that effectively absorbs excess oil, soothes irritated skin, and offers mild exfoliating benefits. Its fine texture provides a matte finish while supporting the skin's natural barrier function.

Absorbent Viscosity Controller Binding Agent Bulking Agent Skin-soothing Exfoliant (gentle) Barrier Support Antioxidant (potential) Anti-inflammatory (potential)

Science

This botanical starch operates on multiple fronts: it acts as a highly effective absorbent, drawing excess sebum from the skin's surface for a refined, matte appearance. Its soothing properties help calm inflammation and reduce discomfort, making it ideal for sensitive skin. The microscopic particle size facilitates gentle physical exfoliation, aiding in the removal of dead skin cells. Furthermore, it forms an invisible protective layer, reinforcing the skin's barrier and assisting in moisture retention. Enriched with natural compounds like tannins, flavonoids, vitamin C, and zinc, it may contribute to collagen stimulation, improved elasticity, and a reduction in blemishes and fine lines, with potential antibacterial and anti-inflammatory benefits from specific potato extracts.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Native Solanum Tuberosum Starch generally swells and absorbs water but does not dissolve in cold water or most organic solvents. Modified forms can be made highly soluble in cold water. It functions as an absorbent, binding agent, bulking agent, and viscosity controller, improving product compressibility and providing a soft, matte finish. Stability is compromised by prolonged high temperatures, which can reduce its thickening properties. Proper storage and preservation are crucial to prevent microbial growth.

Conflicts

  • Prolonged exposure to high temperatures (may lose thickening properties)
  • Susceptibility to microbial growth without adequate preservation

Safety

CIR Status
Safe as used
Sensitization risk Low

Recognized as Generally Recognized As Safe (GRAS) by the FDA as a direct food additive. The Cosmetic Ingredient Review (CIR) Expert Panel has deemed it safe for use in cosmetics under current practices. EWG assigns it low concern ratings across various toxicity categories, including cancer, allergies, and developmental toxicity. It demonstrates low potential for irritation to skin, eyes, or lungs. While allergic reactions are uncommon, a patch test is recommended for individuals with known potato sensitivities.


Your Skin

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

Our Assessment

Valuable

Solanum Tuberosum Starch is a valuable, well-tolerated ingredient offering multi-functional benefits including oil absorption, soothing, and gentle exfoliation, making it suitable for a wide range of skin types, particularly sensitive and oily skin.


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