1. A method of reducing hair loss and / or accelerating their growth or resuming their growth, comprising the steps of applying to the skin of a mammal in need of such treatment a safe and effective amount of a composition containing from about 0.1% to about 100% (by weight) of the additive, containing: a. from about 0.01% to about 99.98% (by weight of additive) of an acid selected from the group consisting of intermediates from the Krebs cycle, alpha-keto acids other than the Krebs cycle, their derivatives, salts and mixtures； b. from about 0.01% to about 99.98% (by weight of an additive) of an antioxidant； ex. from about 0.01% to about 99.98% (by weight of the additive) of a fatty acid mixture or source of a fatty acid mixture comprising at least 7 unsaturated or saturated fatty acids selected from the group consisting of butyric acid, caproic acid , caprylic acid, capric acid, lauric acid, myristic acid, myristoleic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachinic acid, gadoleic acid, entadecanoic acid, margaric acid, margaroleic acid, behenic acid, dihomolinoleic acid, arachidonic acid and lignoceric acid. 2. The method of claim 1, wherein the acid is alpha keto acid. The method according to claim 1, wherein the alpha-keto acid is selected from the group consisting of: pyruvic acid, alpha-ketoglutaric acid, alpha-ketoisovaleric acid, alpha-ketoisocaproic acid, their salts and mixtures. The method according to claim 3, wherein1. Способ уменьшения выпадения волос и/или ускорения их роста или возобновления их роста, включающий стадии нанесения на кожу нуждающегося в таком лечении млекопитающего безопасного и эффективного количества композиции, содержащей от приблизительно 0,1% до приблизительно 100% (по массе) добавки, содержащей:а. от приблизительно 0,01% до приблизительно 99,98% (по массе добавки) кислоты, выбранной из группы, состоящей из промежуточных продуктов цикла Кребса, альфа-кетокислот, не относящих
