Garlic for Strong, Hard Nails
Garlic is extremely versatile and is found in many recipes. Its well-known for its amazing antioxidant properties and ability to reduce cholesterol.
Apart from cooking with and eating garlic, the juice in fresh garlic will also strengthen and harden weak, brittle fingernails.
How to do it: Chop freshly peeled garlic and put this in your nail polish. Let this sit for a several days, afterwhich your old regular nail polish becomes a strengthening solution! (Some store-bought nail hardeners list garlic extract as an ingredient. e.g. Mavala Scientifique Nail Hardener and Oleda Hard Hard Nails.)
Tip: If you don’t polish your nails, you can still get the same benefits by dabbing the juice from garlic onto clean nails. (A very quick and easy way to do this is to pierce the peeled whole garlic with the tip of your fingernails. No chopping required!)
Leave the juice to dry, then wash off if you can’t stand the smell.
one of my good friend in high school had an amazing nails, I asked her what u do? and she told me that she cuts the garlic in half and puts it in a clear nail polish and uses it.. i didn’t really believe her this was back in 2004 and after 8 years my nails been cracking, breaking, they change color because i put so much nail polish on, they turned yellow.. so i said let me try it.. and i did and it actually worked
GARLIC is amazing.. i know a lot of ppl say eeeww it smells and stuff but girls the smell disappear after 15 mins wash ur hands 3 times with soap u should be fine. and beside nobody is gonna go smell ur nails lol.. but it really WORKS 
TRY IT.
Does garlic grow nails too?
i play flamenco guitar and a guitarist recently told me about this. at first i didn’t believe him then i saw so many post about it so i tried it and it worked. in like 10 minutes the juice dried and the smell went away but my nails were as hard as rock.