Vilgain Brain Booster
Reviews
4,6
42 Ratings
Erika Jablonková
Product rating
Verified Purchase
a month ago
Translated from Slovak
Alex
Product rating
Verified Purchase
10 months ago
8 months ago
Translated from Czech
I have tried 2x and I definitely feel better and faster learning. but I still have a little problem with concentration, and this 2x doesn't help