Bacterial agents for preparing compositions which are for cosmetic, pharmaceutical or veterinary use and which are intended to stabilize and/or regulate the cutaneous ecosystem of mammals. These bacterial agents being an extract of a bacterium, or a bacterium, selected for their adhesion to skin cells and anti-adhesive to pathogens of the cutaneous system. The invention also relates to compositions containing such agents.
1. A method for the treatment of skin disorders caused by Staphylococcus aureus comprising: topically administering to a subject in need of such treatment a composition comprising deactivated Lactobacillus johnsonii CNCM I-1225 in an amount corresponding to 10×10 8 to 10×10 12 cfu/g of the composition by dry weight, wherein the Lactobacillus johnsonii CNCM I-1225 was deactivated by lyophilization of a suspension subjected to cycles of freezing in liquid nitrogen and thawing, whereby skin disorders caused by Staphylococcus aureus are treated.
2. The method of claim 1 , wherein the administering comprises application to sensitive skin or greasy skin.
3. The method of claim 1 , wherein the composition is a liquid.
4. The method of claim 1 , wherein the composition is selected from the group consisting of a salve, a cream, a milk, a gel, a body lotion, a soap and a shampoo.
5. The method of claim 1 , wherein the composition is a powder.
6. A method for inhibiting adhesion of Staphylococcus aureus to skin, the method comprising:
topically administering to a subject in need of such treatment a composition comprising deactivated Lactobacillus johnsonii CNCM I-1225 in an amount corresponding to 10×10 8 to 10×10 12 cfu/g of the composition by dry weight, wherein the Lactobacillus johnsonii CNCM I-1225 was deactivated by lyophilization of a suspension subjected to cycles of freezing in liquid nitrogen and thawing, whereby adhesion of Staphylococcus aureus to skin is inhibited.