from these products that if you want to see a difference you might see one, if you don't want to see a difference you won't see one, but the most likely and expected outcome is that you won't see one

For me, it is the best dietary supplement for healthy and strong hair and nails! I take them every autumn and spring. They are vegan, without additives, and do not irritate my stomach. It is exactly what my body needs.

No difference on the skin, that's why I am deducting one star, but really big difference on hair and nails.

I had a significant difference in my nails and hair. I had a slight hair loss, maybe because I developed a thyroid (hyper) and it had very good results. In just 2 months, with no stomach problems, I continue and will not stop

Okay... another nail, guys. Since I was little, I had such soft nails that I couldn't even scratch myself or take a bath or make my bed. Not to mention that during certain seasons, for months on end, they would split in the middle and the top layer would come off, leaving only a flake. This phase started in high school.

What can I tell you, now, at 34, I clean the garden, pick olives, rub with sandpaper, and they don't break? I happened to buy a bottle because I was on an exhausting diet for a wedding I had to attend and I was afraid my hair would thin out. I hadn't even paid attention to my nails. Until one day, out of nowhere, I say "wait a minute. I did all these chores and I still have nails? How did that happen?" And I had completely forgotten that the vitamins I had taken during the diet were also for nails. When I remembered, I bought the remaining bottle and just purchased the second one. I will buy it again with my eyes closed.

I did not notice any particular difference on my skin, but I cannot judge because I do not have any issues anyway.
However, I saw a significant difference in my hair and nails. Initially, I did not have high hopes since other vitamins I have tried have not helped me, and I have a serious problem with my hair as it is very damaged from dyeing and breaking.
They grew very quickly, their elasticity returned, they looked healthy, and my nails stopped breaking and hardened.
After many years, I managed to grow my hair longer than a bob.
I also noticed that compared to other hair vitamins, they are lighter on the stomach and do not have such a bad smell and taste, but this may be subjective.
Anyway, they are definitely worth it.