There won't be immediate improvement. Biotin supplement is good for nails (and hair). This can be an ongoing use without any side effects. If your ridges are vertical, that's probably due to aging and completely unavoidable.
Use a nail strengthener such as OPI Nail Envy. It hardens your nails while you have them on. I've used both the clear and colored ones (Bubble Bath, Hawaiian Orchid and Samoan Sand). They are all the same to me. If you use OPI Nail Envy, you're to apply a new layer every second day for a week before removing everything and start the process over. Having said that, that simply means you cannot apply anything on top of it.
Cosmetic fix wise, builder gel will not exactly fix your problem other than covering it up to allow you to continue to do your nails immediately. However, please assess the information below and make your own decision as I'm not trying to cause you any harm.
- Builder gel overlay is great for protecting thin and weak nails. It allows your natural nails to grow underneath because it now doesn't keep breaking before you reach a longer length. However, this does not guarantee stronger natural nails other than being able to grow them out.
- Builder gel besides being used as an overlay on your natural nails, can also be used to extend your nails with the help of paper forms.
- You can use your gel polish over your builder gel overlay or extension without a problem. If you're a dipper like myself, you can certainly dip over it too.
- If you typically experience lifting around the edges, one thing I can recommend is to use a rubber base (it's a gel product and requires curing too) before you do your builder gel overlay. Rubber base provides stronger adhesion.
- Personally, I'm not a fan of soaking off gel because acetone is way too drying for me and I already have a dry skin problem. Instead, I use gel remover. Just file off the top coat layer then apply the gel remover, let it sit for a minute before you start scraping the softened product off. Then repeat a few times until all or most product has come off and you can file or buff off the little that's left behind.
- When using any gel products, please ensure that you clean off any excess with isopropyl alcohol that may have gotten onto your skin, including your cuticle line and side walls, before curing. This is to ensure that you don't start developing a gel allergy where your skin turns red, you feel a burning sensation and/or your skin feels itchy especially around your fingers or hands.
If you are in the US and would like to find rubber bases for purchase, let me know and I can share with you where I buy mine. I shop small businesses so they are online based and not at Sally's or Ulta.
Hope you find this information useful