7 comments on âOcean Sunfish are the most useless animal (an epic rant)â. 1  Man alive, when are humans going to realize the world wasnât made for them? 2  So what if this animal grows as nothing more than a source of food for others.
The most important hormones affecting the health of skin, hair and nails are estrogen (especially in proportion to testosterone), thyroid hormones and cortisol. Estrogen: Not surprisingly, estrogen levels affect every part of the body, including hair, skin and nails.
Biotin is a popular supplement for hair, skin, and fingernails, though there is little evidence to suggest that taking biotin supplements can stop hair loss or stimulate hair or nail growth. Similarly, using biotin shampoo or other hair products is unlikely to produce any benefit.: Biotin is a water soluble B-vitamin (B7). It is essential for good nail and hair growth. Biotin is involved the biochemical metabolism of proteins, carbohydrates and fats into energy. It also plays a part in the synthesis of fatty acids.