Abstract: This invention relates to new compositions of matter for use in treating wrinkling of the human skin. The compositions comprise, as an essential ingredient therein, at least one N-acylate, by butyric acid, of an alpha-amino acid or a salt of said acylate with an inorganic, organic or biologic base or with a metal.

Abstract: The compounds of formula ##STR1## where R=H and n=1 or R=(C.sub.6 -C.sub.26)-acyl and n=2 are useful in the treatment of muscular fatigue and muscular contraction in men and animals and also in the stimulation of development in vegetation.The compounds are claimed per se and in pharmaceutical and horticultural compositions. Methods of treatment of men, animals and vegetation are also claimed.

Abstract: The compounds of formula ##STR1## where R=H and n=1 or R=(C.sub.6 -C.sub.26)-acyl and n=2 are useful in the treatment of muscular fatigue and muscular contraction in men and animals and also in the stimulation of development in vegetation.The compounds are claimed per se and in pharmaceutical and horticultural compositions. Methods of treatment of men, animals and vegetation are also claimed.

Abstract: The invention relates to new compositions of the formula: ##STR1## wherein: R--CO is the acyl moiety of a straight fatty acid RCOOH comprising from 6 to 20 carbon atoms. ##STR2## represents either the skeleton of the amino acid ##STR3## in which R.sub.1 is conventionally used to allow the generic designation of any of the naturally occurring .alpha. amino acids obtained by degradation of the various proteins, or the ensemble of skeletons of all the .alpha. aminoacids obtained by complete hydrolysis of the natural proteins, said compositions containing the alpha aminoacids in proportions similar to that ones existing in the proteins treated.M is a metal selected from within: magnesium, calcium iron, cobalt, manganese, copper, zinc, molybdenum and aluminum.m is the valency of the selected M.n is an integer inferior to m.Some detailed examples of compositions are given.

Abstract: The invention relates to new compositions useful in the field of treatment of man, animals and plants. The compounds are of the formula : ##STR1## wherein : R-CO is the acyl moiety of a straight fatty acid RCOOH comprising from 6 to 20 carbon atoms. ##STR2## represents either the skeleton of the amino acid ##STR3## in which R.sub.1 is conventionally used to allow the generic designation of any of the naturally occurring .alpha. amino acids obtained by degradation of the various proteins, or the ensemble of skeletons of all the .alpha. aminoacids obtained by complete hydrolysis of the natural proteins, said compositions containing the alpha aminoacids in proportions similar to that ones existing in the proteins treated.M is a metal selected from within: magnesium, calcium, iron, cobalt, manganese, copper, zinc, molybdenum and aluminium.m is the valency of the selected Mn is an integer inferior to m. Some detailed examples of compositions are given.