KGF is kept highly concentrated to preserve its activity, therefore you will hardly see the KGF drop at the bottom of the small tube.
Store the KGF in the refrigerator until you are ready to use it. When ready to use, add the contents of the tube with the clear cap (saline solution) to the tube with the yellow cap (KGF solution) and put the lid back on. Mix by inverting and straightening the tube several times. Make sure the solution is mixed thoroughly, but gently. Vigorous mixing will decrease the activity of the KGF protein.
The KGF is now ready for addition to your cream, lotion, serum, leave-in conditioner, or other leave-on product. Do not be tempted to use it more concentrated than recommended. A growth factor is similar to a hormone: very little (it is measured in micrograms, one millionth of a gram) will go a very long way.
Each kit is enough for 4 fl oz of cream, lotion, or serum at approximately 0.00005% concentration (50 mcg in 120 mL cream). Use in your favorite cream or add to our Canvas Base Cream or our Sea Kelp Coral.
sh-Polypeptide-3 suspended in ammonium sulphate/water solution.
Keratinocyte Growth Factor (KGF) binds to the KGF receptor on the cell surface, acting as both a growth and survival factor by stimulating epithelial cell proliferation, differentiation, and migration, and promoting a number of cell protective mechanisms. KGF is also known as FGF-7 and heparin-binding growth factor-7 (HBGF-7). KGF is a member of the fibroblast growth factor family and has been found to stimulate hair growth. Cells that respond to KGF do so because they have receptors on the cell membrane that recognize the growth factor, normally produced by cells near or far from the target cell. The binding of the Growth Factor to the receptor initiates a cascade of molecular events that will eventually lead, among other effects, to cell division. Keratinocyte growth factor has been shown to regulate proliferation and differentiation in epithelial tissues, and may regulate the stem cells of the hair follicle.*
(*See reference tab for scientific resources)
Data sheet for KGF HERE.
Beer, HD, Bittner, M, Niklaus, G, Munding, C, Max, N); Goppelt, A, Werner, S (2005) The fibroblast growth factor binding protein is a novel interaction partner of FGF-7, FGF-10 and FGF-22 and regulates FGF activity: implications for epithelial repair. Oncogene, 24: 5269-5277
Braun, Susanne, Krampert, Monika, Bodo, Enikoe, Kuemin, Angelika, Born-Berclaz, Christiane, Paus, Ralf, Werner, Sabine. (2006) Keratinocyte growth factor protects epidermis and hair follicles from cell death induced by UV irradiation, chemotherapeutic or cytotoxic agents Journal Cell Science, 119: 4841-4849
Danilenko, Dimitry M.; Ring, Brian D.; Yanagihara, Donna; Benson, William; Wiemann, Bernadette; Starnes, Charles O.; Pierce, Glenn F. (1995) Keratinocyte growth factor is an important endogenous mediator of hair follicle growth , development, and differentiation. Normalization of the nu/nu follicular differentiation defect and amelioration of chemotherapy induced alopecia. American Journal of Pathology 147: 145-54.
Guo, Lifei; Degenstein, Linda; Fuchs, Elaine (1996) Keratinocyte growth factor is required for hair development but not for wound healing. Genes & Development 10:165-75.
Jang, JH (2005) Stimulation of human hair growth by the recombinant human keratinocyte growth factor-2 (KGF-2). Biotechnology Letters, 27:749-52.
Karvinen, S; Pasonen-Seppanen, S; Hyttinen, JMT; Pienimaki, JP; Torronen, K, Jokela, TA; Tammi, MI, Tammi, R (2003) Keratinocyte growth factor stimulates migration and hyaluronan synthesis in the epidermis by activation of keratinocyte hyaluronan synthases 2 and 3. J Biol Chem, 278:49495-49504.