Composition containing at least one C7 sugar for alopecia treatment, cosmetic treatment of hair and nails, and care of hair, eyelashes, or nails

A method to stimulate the growth of hair and nails and/or to slow the loss of the hair and nails by reducing inflammation, comprising administering to a person in need thereof a composition comprising at least one C7 sugar or a derivative of formula (I) and a pharmaceutically acceptable excipient

• wherein:
• Ra represents a hydrogen atom and Rb represents —OR2 or CRaRb represents a CO radical;
• R1, R2, R3, R4, R5, R6 and R7 represent, independently of one another:
• a hydrogen atom or
• a —(CO)—R radical wherein R represents a saturated or unsaturated hydrocarbon chain containing from 11 to 24 carbon atoms, optionally substituted by hydroxy radicals (—OH), ethoxy radicals (—OC2H5) and an —SO3M group with M representing a hydrogen atom, an ammonium ion (NH4+) or a metal ion;
• or
• a —(CO)—R′ radical wherein R′ represents a saturated or unsaturated hydrocarbon chain containing from 2 to 10 carbon atoms, optionally substituted by hydroxy radicals (—OH), ethoxy radicals (—OC2H5) and an —SO3M group with M representing a hydrogen atom, an ammonium ion (NH4+) or a metal ion;
• and
• at least one of R1, R2, R3, R4, R5, R6 and R7 is —(CO)—R or —(CO)—R′.