 preferred water-absorbent polymer particles are polymer particles having a centrifuge retention capacity (CRC) from 00 to 00 g/g, an absorption under high load (AUHL) from 00 to 00 g/g, a level of extractable constituents of less than 0% by weight and a porosity from 00 to 00%. The present invention further provides surface-postcrosslinked water-absorbent polymer particles having a total liquid uptake of Y>−000×ln(X)+0000