IDEAL FOR Hair prone to breakage from brushing or styling Thinning or low-density areas needing targeted strengthening Color-treated, highlighted, or chemically processed hair Those seeking professional scalp treatments at home Daily preventative hair strengthening routines BENEFITS Reduces breakage by 97%* when used as part of the Genesis system Strengthens hair from the root at the scalp level Nourishes without weighing hair down Lightweight, non-greasy finish Genesis is not a hair loss product *System of Bain Hydra-Fortifiant + Fondant Renforcateur + Sérum Fortifiant vs Non-Conditioning Shampoo Reduces breakage Strengthens hair Nourishing Healthy Hair @media only screen and (max-width: 767px) { .c-product-main__info, .c-product-promotion, .c-section__title, .c-section__description.h-text-align-center{ text-align:left !important; } .c-section__headings.h-text-align-items-center{ align-items: left!important; display: inline; } } .c-accordion.m-secondary .c-accordion__title { padding-left: 0px! important; padding-right: 0px! important; } .c-accordion__content-inner { padding-left: 0px; padding-right: 0px; } .c-product-table-compare__cell-label { font: 800 .75rem/1.3 Avenir-Heavy,sans-serif; text-align: center!important; text-transform: uppercase; } .c-product-table-compare__body tr:nth-child(5), .c-product-table-compare__body tr:nth-child(2) .c-product-table-compare__cell-label.h-text-align-left.h-color-text-secondary{ display: none; } [data-js-section-id="pdp-section-comparisontable"] h2 { border-top:1px solid #d8d8d8; padding-top: 1.25rem; text-align: center! important; } .c-product-table-compare__cell { text-transform: unset; font-weight: unset;} @media only screen and (max-width: 767px) { [data-js-section-id="pdp-section-comparisontable"] h2 { text-align: left! important; } } .c-scrollable .c-scrollable__arrows.m-background-light .c-scrollable__arrow-next, .c-scrollable .c-scrollable__arrows.m-background-light .c-scrollable__arrow-prev { background: transparent; box-shadow: none; } .c-product-table-compare.m-secondary .c-product-table-compare__cell { padding: 10px 10px 0 0; } | NEVER BE AFRAID OF FALLING. ​ The Genesis collection is professionally formulated to strengthen hair & reduce hair breakage. 97% LESS HAIR FALL DUE TO BREAKAGE FROM BRUSHING* +89% MORE NOURISHED HAIR** Genesis Serum Fortifiant by Kérastase is a silicone-free scalp serum that targets hair weakness at the source. This lightweight, professional-strength formula penetrates the scalp to fortify hair, reduce breakage, and strengthen weak, thinning, or color-treated hair without residue or buildup. To maximize the results, combine with the rest of the Genesis range *System of Bain Hydra-Fortifiant + Fondant Renforçateur+ Sérum Fortifiant vs Non-Conditioning Shampoo **vs. non-conditioning shampoo.