![Kérastase Model Emily Ratajkowski](/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=400&rev=6964d85ce96a46d4911985f24f1f82b2&hash=4F5CCFA37C38D632101C31872326DE06 400w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=450&rev=6964d85ce96a46d4911985f24f1f82b2&hash=0C44D0F5ADAF39E44593B3764B090C4C 450w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=500&rev=6964d85ce96a46d4911985f24f1f82b2&hash=1E701D8B55202044C6D6783245C8E8CF 500w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=550&rev=6964d85ce96a46d4911985f24f1f82b2&hash=5CE4409550A93DBCC352B0F6AB5A50D7 550w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=600&rev=6964d85ce96a46d4911985f24f1f82b2&hash=E23339B474CB810716DC96F6885B57DC 600w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=700&rev=6964d85ce96a46d4911985f24f1f82b2&hash=FDD2E3AA8B1669545D8974885B085DFA 700w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=800&rev=6964d85ce96a46d4911985f24f1f82b2&hash=1A2244F534FF1E70CA27567C096180B8 800w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=900&rev=6964d85ce96a46d4911985f24f1f82b2&hash=2737AD943835F5354DB7AE1EFDBA9B77 900w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=1000&rev=6964d85ce96a46d4911985f24f1f82b2&hash=81C14D9EA8F002CE49BBE1F4B91426CF 1000w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=1100&rev=6964d85ce96a46d4911985f24f1f82b2&hash=9093F1B9EE6420FF175C5478B0562B7B 1100w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=1200&rev=6964d85ce96a46d4911985f24f1f82b2&hash=7906BF27E6D650630F46ED1383AA76C5 1200w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/kerastase21hairdiagnosisuncroppedgirlsdiag-3a.jpg?w=1400&rev=6964d85ce96a46d4911985f24f1f82b2&hash=6FB9845156E6D3E98700A1446D189A81 1400w)
FIND YOUR PERFECT HAIR CARE ROUTINE
My Hair Diagnostic
In a few questions, Kérastase helps you analyse your unique hair concerns & goals in order to recommend you the perfect care for your hair.
![Kérastase Genesis Hair Care](/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-4.jpeg?w=320&rev=f37d8061fd064fb480789c460e5c5a25&hash=0147A3383FBE34ECFFAD18C3DBC0DE47 320w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-4.jpeg?w=400&rev=f37d8061fd064fb480789c460e5c5a25&hash=1C27790B2F4E6808788AB9FCC70831EB 400w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-4.jpeg?w=500&rev=f37d8061fd064fb480789c460e5c5a25&hash=62710388C1B19FCAB429734309ABB973 500w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-4.jpeg?w=600&rev=f37d8061fd064fb480789c460e5c5a25&hash=38C1F85D7E77D58B3A9C314ED01C855E 600w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-4.jpeg?w=767&rev=f37d8061fd064fb480789c460e5c5a25&hash=B95EC603074C9B231CBA93230A6904AC 767w)
![Kérastase Model Emily Ratajkowski](/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-3.jpeg?w=320&rev=4fa195f1f9fe4169836c7af3983004e4&hash=594AB42CA14380EF406C64BCB93ABF33 320w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-3.jpeg?w=400&rev=4fa195f1f9fe4169836c7af3983004e4&hash=46EE0CAABD289A1E434FE825F0CF1D76 400w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-3.jpeg?w=500&rev=4fa195f1f9fe4169836c7af3983004e4&hash=B05B14D2057755B5260E193094F67FC3 500w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-3.jpeg?w=600&rev=4fa195f1f9fe4169836c7af3983004e4&hash=D1E9589C86189E5BD3D5727A11176FDF 600w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-3.jpeg?w=767&rev=4fa195f1f9fe4169836c7af3983004e4&hash=5E8683EA9EF34C7398AF53A8A8D6054D 767w)
![Kérastase Four Models Key Visual Banner](/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/vlm21025_kerestase-instit_06_0155-c-cmjn-01-12-2021.jpg?w=320&rev=a9872a1756034647858ffae014bc03ae&hash=B7E060C0C907EED2F4E452A41A8AB290 320w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/vlm21025_kerestase-instit_06_0155-c-cmjn-01-12-2021.jpg?w=400&rev=a9872a1756034647858ffae014bc03ae&hash=3942436D33E739C90707D8FF283BD312 400w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/vlm21025_kerestase-instit_06_0155-c-cmjn-01-12-2021.jpg?w=500&rev=a9872a1756034647858ffae014bc03ae&hash=529FA3C9D993EC90CB89DFD53778907E 500w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/vlm21025_kerestase-instit_06_0155-c-cmjn-01-12-2021.jpg?w=600&rev=a9872a1756034647858ffae014bc03ae&hash=9CDCB0F43570EE10E00047337FED99BB 600w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/vlm21025_kerestase-instit_06_0155-c-cmjn-01-12-2021.jpg?w=767&rev=a9872a1756034647858ffae014bc03ae&hash=C4068358BC5FF74CB14E468405E67EF9 767w)
![Kérastase Professional Hair Expertise](/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-2.jpeg?w=320&rev=2e0b4abb58704e7284c094fe0d6a9980&hash=8BB8D0C0D40EE8230217B794AC3B7110 320w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-2.jpeg?w=400&rev=2e0b4abb58704e7284c094fe0d6a9980&hash=BAF1EFF8223BD87E92E68EDFCF3C792F 400w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-2.jpeg?w=500&rev=2e0b4abb58704e7284c094fe0d6a9980&hash=DC4AAADA48E8BD0A72DDE2F69173C4A7 500w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-2.jpeg?w=600&rev=2e0b4abb58704e7284c094fe0d6a9980&hash=8D00B4EBB7BE66917B54ED3ABEAD5EC1 600w,/-/media/project/loreal/brand-sites/kerastase/apac/hk/diagnose-your-hair/hcd-home-block-2.jpeg?w=767&rev=2e0b4abb58704e7284c094fe0d6a9980&hash=D2714F26EDA367ED31CB238A932BFA65 767w)
In a few questions, Kérastase helps you analyse your unique hair concerns & goals in order to recommend you the perfect care for your hair.