US 12,214,066 B2
Hair care compositions
Oded Shoseyov, Shoham (IL); Roni Shalev, Moshav Timorim (IL); Sigal Baruch-Sharon, Ness-Ziona (IL); Tal Ben Shalom, Beer-Yaacov (IL); and Liron Nuttman-Nesial, Rechovot (IL)
Assigned to YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD., Jerusalem (IL); and SMART RESILIN LTD., Karmei Yosef (IL)
Appl. No. 16/603,280
Filed by Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Jerusalem (IL); and Smart Resilin Ltd., Karmei Yosef (IL)
PCT Filed Apr. 4, 2018, PCT No. PCT/IL2018/050399
§ 371(c)(1), (2) Date Oct. 7, 2019,
PCT Pub. No. WO2018/185768, PCT Pub. Date Oct. 11, 2018.
Claims priority of provisional application 62/482,910, filed on Apr. 7, 2017.
Prior Publication US 2020/0121581 A1, Apr. 23, 2020
Int. Cl. A61K 8/64 (2006.01); A61K 8/73 (2006.01); A61Q 5/06 (2006.01)
CPC A61K 8/64 (2013.01) [A61K 8/731 (2013.01); A61Q 5/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of straightening hair, the method comprising:
applying to the hair cysteine, sodium metabisulfite or a combination thereof to thereby obtain cleaved disulfide bonds in the hair;
applying arginine or chitosan to the hair, having cleaved disulfide bonds and heat treating the hair;
subsequently to heat treating the hair, applying to the hair a formulation containing cellulose nanocrystals (CNC) bonded to cellulose binding domain (CBD)-modified resilin in a non-covalent interaction; and
subsequent to applying the formulation containing the CNC, applying heat and pressure to the hair, to cause hair straightening without causing damage to hair,
thereby straightening the hair.