Then, the following ingredients were applied with spatulas
onto the surface of epidermis: the hydrogel mask whichwas the reference, hydrogel mask with Palm-Gly-Gly-
Pro-Ala-Gly, hydrogel mask with Palm-Gly-Gly-Pro-Gly-
Ala-Pro and hydrogel mask with Pro-Ala-Gly-Hyp-Pro.
After 10 min, a series of measurements of the hydration
degree was carried out. Before applying the electrodes and
the test probe to the tissue, the surface was purified from
residue of the unabsorbed cosmetic with a wipe. The procedure
was performed once. The degree of hydration was
in the range of 15-16 mS. Subsequent measurements were
made every 15, 30 and 60 min, incorporating the technique
described above.