I don't maintain my fingernails; just my toes! I start from inside my body first, and work to the outside; that's why I'm pretty peaceful and calm inside but outwardly look like I just rolled in from a thunderstorm, LOL. In post-menopause, everything gets more dry and brittle. With help from my holistic doc fam and a yogi/ayruvedic contact, I take in quite a bit of healthy fats to balance hormones and keep everything less dry and more fluid, including joints and nail health. You might enjoy doing something completely different and exploring the banyan botanicals site, starting with the quiz that they have. Even if you don't like it at all, it's free, and you will be given lots of suggestions, all healthy and not too kooky.

Sandy, I've always had strong nails, however now they grow so fast and are even harder. Last year I started taking Collagen by mixing it in with my tea, and about 3 months later I started noticing my hair growing, nails growing, skin looking better. Below are the links. I use one tube per day and the vitamins I take 4 vitamins. I would make sure it's ok with your doctor before you start any of this to make sure they are ok with it.

https://www.amazon.com/dp/B01INKB54I?ref=nb_sb_ss_w_as-reorder-t1_ypp_rep_k0_1_3&&crid=9STUY908WCDK&&sprefix=col

https://www.amazon.com/dp/B08YKJX832/ref=sspa_dk_detail_6?psc=1&pf_rd_p=1f2c02dc-66c8-4296-801a-31d671985c95&pd_rd_wg=M2oud&pf_rd_r=1727N9QTA0RTM0R3J4CN&pd_rd_w=gL56B&pd_rd_r=c0a799f1-1132-4fcd-b467-77e19edd35ea&s=hpc&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzRVlIS1MzQVhKOVpJJmVuY3J5cHRlZElkPUExMDIyOTcxMTlXUlQ5VFZMQ0xFMSZlbmNyeXB0ZWRBZElkPUEwMTc3NzQ4MzFUVURZWU9GRzVCViZ3aWRnZXROYW1lPXNwX2RldGFpbDImYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl