There are a few things you can do to get your nails healthy again. The first being avoiding Sally Hansen's product

. Actually, not using any regular nail polish or remover for a while will allow your nails time to heal and grow stronger.
Tips to Strengthen Nails*
Supplements to strengthen your nails: Vitamin B6, A,and C. You may also want to try including zinc and increasing calcium in your diet.
*
Moisturize: Use a heavy moisturizer on your hands and nails. Several are listed
here. *
Remedies in your cabinets: soak your nails in olive oil for about 30 minutes or so three times a week.
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Strengthening polishes can help your nail become stronger. You can try a product like
Sephora's OPI Nail Strengthener. The following tips will help your nails to grow healthy and strong again: abstain from typical nail polish for a while, take the recommended supplements or incorporate them in your diet, moisturize your hands and nails daily with a rich cream, soak your nails in olive oil a few times a week, and apply a nail strengthener. This should help your nails grow stronger!