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Сообщение: Biotin is not effective for everyone, but if you have very brittle and weak nails, you may want to speak with your doctor about taking a biotin supplement. The normal daily dose is 30 mcg, but a dose of 2.5 mg can be used under doctor’s supervision as a way to make your nails stronger.
Excess biotin side effects http://biotin24.cf/art/recomme |
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