DoctorHouse
Senior Member
- Reaction score
- 5,735
Unfortunately, because the scalp is made of skin, systemic absorption will always happen. But the systemic absorption will be lower than if you take it orally so it's worth trying it if you can't tolerate it orally. I still wonder whether topical is just effective as oral finasteride/dutasteride.Is there any topical finasteride or dutasteride with ZERO systemic absorption?
Is there any delivery system that a medication can be put into that will keep the medication from getting into the person's system?