It is recommended to consult with a healthcare professional to determine the root cause of your brittle nails and hair breakage. In the meantime, you may consider trying supplements like Nutricap, which some people have found to help improve the symptoms of brittle nails and hair. It is important to note that results may vary from person to person, and it is advisable to use the product for a maximum of 60 days before assessing its effectiveness. Additionally, it may be beneficial to avoid harsh chemicals and irritants that could further damage your nails and hair. Also, keep in mind that the end of your Accutane treatment could potentially lead to improvements in your condition over the next few months.