Bayer Oy ni mtoa ya bidhaa na huduma kama vile dermatology utafiti na maendeleo,madawa ya utafiti na maendeleo,pua creams,dawa ya kupuliza pua,nasopharyngeal maandalizi,koo kunyunyuzia,mouthwashes na washes koo, dawa,jicho marhamu,jicho-matone, collyriums, dawa,ophthalmic maandalizi, mydriatic,keratolytics,eyewashes, dawa,steroid maandalizi kwa ajili ya matumizi ophthalmic,aural maandalizi,sarataniya orofarinji maandalizi,ophthalmic maandalizi kolena,antithrombins,angiotonics,antipsoriatics,kupambana acne maandalizi,meno maandalizi.