I got on well with ProStrong. Used it religiously for a while and they were brilliant then got out of habit for some reason and now they are rubbish again. Trying to get back into habit again now!
I’m sceptical about ProStrong as I can’t see how fluoride can help.
Fluoride as we know is normally found in products for your teeth.
The enamel of the tooth is made up of mineral substances and the nails are made up of a hard protein called keratin and does not contain any mineral substances.
The purpose of fluoride in dental products is to reduce acid and bacteria in saliva and therefore preventing tooth decay. So I cannot see how it has any effect on nails.
It cannot strengthen them or help them grow. The water that we drink contains fluoride so in theory everyone would have strong nails?
Nail products containing calcium (a mineral) or protein are also useless as you cannot feed the nail from the outside in. Nails do not contain any calcium either but it is required for nail growth along with other vitamins and minerals.
The polish that contains it will act as a barrier just like any other polish making the nails temporarily thicker.
Nails like skin are a reflection of your health and so some nail disorders (apart from nail diseases) are due to a nutritional deficiency amongst many other reasons such as harsh detergents, nail biting, prolonged use of nail polish and remover, cuticle removers, poor circulation, medication, ill health, use of acrylic/artificial nails, incorrect filing, over buffing, hands in water all the time.
In conjunction with diet, using a good massage medium of your choice around the cuticles to stimulate the circulation will improve your nails and stimulate growth without the need for expensive nail products that claim all kinds of miracles.