As you get older, the body processes some nutrients less efficiently, including iron, which is needed for healthy hair. Iron is needed for healthy red blood cells which carry oxygenated blood to the scalp and hair follicles, so iron defiency can cause thin hair that lacks lustre.
Here's the hard truth: Little can be done to permanently change the diameter of individual hair strands. Thickening products can do wonders to temporarily plump hair strands, but when it comes down to it, fine hair is genetic and can't be changed.
The most common B Vitamin you might already be familiar with is Biotin—also known as Vitamin B7. If you've been looking into growth vitamins to thicken your hair, you're likely familiar with Biotin at this point. It's an essential growth ingredient often added to supplements that promote healthy hair and nails.
Castor oil: Castor oil is rich in Vitamin E that improves hair health, hair growth, and thickens the hair. Applying castor oil evenly to the scalp and hair and washing it off after 30 to 60 minutes once or twice a week can help.
The bottom line. There's no strong evidence to support using biotin for hair growth or to prevent hair loss in people without a deficiency. Because hair thinning and poor hair growth are sometimes associated with a biotin deficiency, correcting a deficiency can help restore hair growth in some people.
Lifestyle factors could include using certain hair products, wearing your hair up too tightly, experiencing high stress levels, or not getting enough of certain vitamins and minerals in your diet. People who have immune system deficiencies could also have thinning hair.
“Vitamins are essential for healthy hair growth and may help in preventing hair shedding and thinning,” says Michele Green, M.D., a cosmetic dermatologist in New York. “The best vitamins for hair growth include B vitamins, vitamin D, vitamin E, zinc, biotin and iron.
At what age do people typically start to lose their hair? Hair loss can start as early as your teenage years or might not occur until you're well past retirement. Generally, people begin noticing signs of hair loss in their 30s and 40s. More significant hair loss often happens when people reach their 60s and beyond.
In women, hereditary hair loss usually starts after the age of 40. Roughly 40% of women have noticeable hair loss by the age of 50. And less than half of women get through life with a full head of hair.
Wearing your hair too long will make it look thinner
"Ironically, with thinning hair it's important to make sure you get your hair cut regularly," says Julie Hensman, from Hensmans in Northampton. "Thinning hair can get out of shape more quickly, making it look more obvious".
Nearly everyone has some hair loss with aging. The rate of hair growth also slows. Hair strands become smaller and have less pigment. So the thick, coarse hair of a young adult eventually becomes thin, fine, light-colored hair.
If you are experiencing thinning or balding, our Bosley experts recommend washing no more than three times a week.
Sources of Biotin
Foods that contain the most biotin include organ meats, eggs, fish, meat, seeds, nuts, and certain vegetables (such as sweet potatoes) [2,12].
In terms of your hair and scalp, taking too much biotin won't result in drastic damage. But while your magnificent mane might not be in danger, biotin could have adverse effects on your skin. “What I see most often is breakouts on the face, chest, and back,” Breana cautions.
However, vitamin B12 may give you the appearance of fuller and thicker hair because the increase in oxygen to hair follicles can help stimulate the replacement of lost strands. Vitamin B12 may also help give your hair an overall healthier appearance since intake of enough B12 is responsible for stronger hair shafts.