Biocare vitasorb d 15ml vitasorb d provides 50iu per daily intake and is an easy to take highly absorbable liquid vitamin d preparation which can be taken under the tongue or added to drinks additional information provides liquid vitamin d to facilitate absorption 125iu of vitamin d per drop ideal for those who have difficulty or prefer not to swallow capsules or tablets can be taken sublingually under the tongue for those with gastrointestinal difficulties ideal for individuals w