The present disclosure provides a method of inducing or promoting darkening of the skin and/or melanogenesis, a method of treating a skin condition or disorder, in particular hypopigmentation, comprising administration of a polycationic aliphatic amine, wherein said polycationic aliphatic amine preferably is putrescine, spermidine and spermine. The invention further includes corresponding methods of reducing or preventing darkening of skin and/or melanogenesis, or related methods of treating a skin condition or disorder, comprising administration of at least an inhibitor of polycationic aliphatic amine transport or synthesis, wherein said inhibitor is preferably trimer44NMe or difluoromethylornithine (DFMO) respectively.

The present disclosure provides a method of inducing or promoting darkening of the skin and/or melanogenesis, a method of treating a skin condition or disorder, in particular hypopigmentation, comprising administration of a polycationic aliphatic amine, wherein said polycationic aliphatic amine preferably is putrescine, spermidine and spermine. The invention further includes corresponding methods of reducing or preventing darkening of skin and/or melanogenesis, or related methods of treating a skin condition or disorder, comprising administration of at least an inhibitor of polycationic aliphatic amine transport or synthesis, wherein said inhibitor is preferably trimer44NMe or difluoromethylornithine (DFMO) respectively.

Compositions and methods useful for culturing mammalian cells, tissues and/or organs are provided. The compositions contain Chroman 1 or its derivatives, may further include Emricasan or its derivatives, and may further include one or both of trans-ISRIB and polyamines. The compositions may be formulated as media additives, media concentrates or working media. The compositions and methods may be used to culture stem cells, progenitor cells, differentiated cells, isolated primary cells, secondary cells, immortalized cells, cell line cells, germline cells, somatic cells, or modified cells, including genetically modified cells. The compositions and methods may be used to culture, preserve or maintain cells, tissues, organs parts or organs, grow embryoid bodies, embryos, organs or organ parts.

Compositions and methods useful for culturing mammalian cells, tissues and/or organs are provided. The compositions contain Chroman 1 or its derivatives, may further include Emricasan or its derivatives, and may further include one or both of trans-ISRIB and polyamines. The compositions may be formulated as media additives, media concentrates or working media. The compositions and methods may be used to culture stem cells, progenitor cells, differentiated cells, isolated primary cells, secondary cells, immortalized cells, cell line cells, germline cells, somatic cells, or modified cells, including genetically modified cells. The compositions and methods may be used to culture, preserve or maintain cells, tissues, organs parts or organs, grow embryoid bodies, embryos, organs or organ parts.

The present invention describes slow-release compositions for the effective delivery of active ingredients such as putrescine and Vitamin C into the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation and/or for reducing or preventing skin's signs of aging.

The present invention describes slow-release compositions for the effective delivery of active ingredients such as putrescine and Vitamin C into the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation and/or for reducing or preventing skin's signs of aging.

The present invention describes slow-release compositions for the effective delivery of active ingredients such as putrescine and Vitamin C into the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation and/or for reducing or preventing skin's signs of aging.

The present invention describes stable topical barrier compositions comprising primary polyamines and uses thereof for protecting the skin from external stressors, for improving skin's moisture and fort stimulating healing of the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation, for increasing skin's moisture and/or for reducing or preventing skin's signs of aging.

The present invention describes stable topical barrier compositions comprising primary polyamines and uses thereof for protecting the skin from external stressors, for improving skin's moisture and fort stimulating healing of the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation, for increasing skin's moisture and/or for reducing or preventing skin's signs of aging.

The present invention describes stable topical barrier compositions comprising primary polyamines and uses thereof for protecting the skin from external stressors, for improving skin's moisture and fort stimulating healing of the skin. These compositions may be used in a variety of cosmetic and therapeutic applications including for promoting wound healing, for reducing or preventing the formation of hypertrophic scar tissue, for reducing or preventing skin irritation and inflammation, for increasing skin's moisture and/or for reducing or preventing skin's signs of aging.