I have tried a few different remedies to fixed my damaged nails, but this is by far the best product I have tried. Have been using it nightly for about 3 weeks on 3 different nails and there is a marked improvement already. My nails are much smoother and whiter. Not sure what the active ingredients are, there is no scent. I agree with some other reviewers that a brush would be better than the dropper method that comes with the bottle, so I use a brush from another nail product to apply. It also takes a while to dry, so I apply in the evening after showering when I can stay barefoot at home for a while to allow time for drying. I think the bottle will last ages which is a bonus!
Been using this for a week and it has not gotten rid of my fungal infection yet, but it has been very good for hydrating my nails and improving the texture of my very dry toe nails that were very damaged.
The size of this is pretty big. I like the packaging with the dropper as well. Hopefully prolonged usage will help with the fungal infection!