Distarch Phosphate

Distarch phosphate is a modified starch used mainly as a thickener/absorbent and texture enhancer, typically at low-to-moderate concentrations in creams and powders. Clinically it is considered largely non-reactive with very low rates of irritation or sensitization in patch testing, though rare friction/occlusion-related discomfort can occur in highly compromised eczema skin. Given my conservative approach for severely sensitive patients, it fits best as exceptionally gentle rather than fully inert. Safety Notes: In commercial skincare, distarch phosphate (a modified starch used as an absorbent, rheology modifier, and sensory/anti-tack powder) is observed at very low levels (~0.1–0.5%) in lotions/creams primarily to fine-tune slip and reduce tack. Typical leave-on emulsions and sunscreens more often use ~1–5% for texture and oil-control, while the highest consumer-available levels (~10–15%) show up in powder-heavy anhydrous formats (mattifying primers, blur balms, dry-touch body products) where it functions as a primary absorbent/filler; rinse-off products generally sit toward the lower-to-mid portion of the range due to wash-off and viscosity constraints.