Abstract: The invention relates to a cosmetic composition that can be used to remineralise human skin and to counteract the effects of ageing on the latter. According to the invention, said composition contains 0.5-3% water of volcanic origin containing 0.01-0.05 mg/l Fe, 100-300 mg/l K, 1,000-2,000 mg/l Na, 80-200 mg/l Mg, 50-150 mg/l Ca, 50-150 mg/l Si, 0.01-0.1 mg/l P, 0.001-0.005 mg/l Se, 0.01-0.03 mg/l Zn. In addition, the composition optionally contains 0.2-0.8% of an extract from samphire Crithmum maritimum, 0.3-0.9% of the peptide palmitoyl-gly-his-lys and 0.8-1.25% hydrolysed soy protein.