Advanced Nutrition Programme Nail Science is a specially formulated supplement designed to aid the strength & condition of your nails. Nails are often weak, brittle or flaky due to nutritional deficiencies, simply increasing the intake of one element will not make your nails healthy. These capsules contain a well balanced combination of natural ingredients biotin, calcium, horsetail & specially selected vitamins & minerals, all nutrients that have been shown to benefit nails. No added: Sugar, salt, starch, wheat, gluten, maize, corn, yeast, lactose, dairy products, artificial preservatives, colours or flavourings.