L-Sulforaphane 1.Extract from Broccoli Seeds 2.Brown oily liquid 3.Spec 1%,10%, ... : 1%, 10% , 50% (HPLC)In 1992 Hopkins scientists isolated sulforaphane from broccoli as the principal booster (inducer) of an elaborate network ... oxidants.[Storage]: Store in -20 degreecelsius & dry place, Keep away from strong light and heat L-Sulforaphane (Broccoli Seeds extract.)