Is Liquid Reviva the "HIgh Potency Multivitamin" safe to take during pregnancy?

We are ttc and I see this liquid vitamin has 400 mcg of folic acid, but it also has a lot of other minerals, vitamins, super fruits, antioxidants in it. I can't find anything anywhere to tell me whether or not it is safe to take when pregnant. I can say that it's giving me awesome nails over the past 3 weeks and the prenatal vitamin from walmart was not doing that!