But scientific research is scarce on how long it will take for hair to grow back — and if there is a significant amount of hair regrowth — after upping your vitamin D intake and improving your levels. Anecdotal evidence, though, suggests hair may stop shedding and regenerate in as little as two months after treatment.
Vitamin D supplements are an excellent way to improve your Vitamin D blood levels. Unfortunately, not many foods naturally contain an adequate amount of Vitamin D. If you are consistent with taking your Vitamin D supplements, there is a likelihood that you will see hair regrowth results within six to eight weeks.
Will hair grow back after vitamin D deficiency? The good news is that hair loss due to vitamin D deficiency is usually reversible. Once levels of vitamin D are increased, hair follicles will typically begin to function properly again and hair will start to regrow.
Vitamin D deficiency is also associated with scarring alopecia. However, conclusive studies to demonstrate the benefit of vitamin D administration in correcting hair loss and managing these conditions are lacking.
Dr. Hamdan tells us that if you're consistently taking a hair growth vitamin (and don't have any underlying hormonal or medical issues) you should notice that you're losing less hair within two months. By month six, "you should be able to feel your hair becoming thicker," she adds.
That is why we recommend supplementing with between 5,000-10,000 IU per day in order to achieve healthy vitamin D levels (40-80 ng/ml).” The key to resilient, strong hair less prone to falling out lies in the follicles.
How Long Does It Take for Vitamin D to Work? If you have a vitamin D deficiency, you may notice improvements within 4-6 weeks of consistent supplementation. However, that timeframe can vary depending on what your baseline vitamin D levels are.
Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss.
Biotin or B vitamin is one of the best vitamins when it comes to your tresses. When you lack biotin, your body is unable to create enough red blood cells because of which less oxygen travels through your scalp. Due to this, your scalp is not properly nourished and you experience hair fall.
“Both vitamin D deficiency, as well as vitamin D excess, may cause hair loss,” Chacon explains. A 2020 study in the International Journal of Dermatology found that vitamin D deficiency may also play a role in the development and severity of androgenetic alopecia, also known as male pattern baldness.
Biotin. Biotin, also known as vitamin B7, stimulates the production of keratin to increase follicle growth. Biotin deficiencies tend to be rare, with those diagnosed with Biotinidase Deficiency being the most common.
The short answer is a resounding yes! Research has repeatedly shown that zinc levels tend be lower in people who are experiencing a variety of hair loss conditions, like: Androgenetic alopecia, or female/male pattern baldness.
We recommend taking it with a source of quality fat in the morning or when you break your fast. Avoid taking vitamin D in the evening (we'll talk about why below). Since vitamin D is a fat-soluble vitamin—meaning it doesn't dissolve in water—your body can most easily absorb it when you take it with food.
The effect of equivalent oral doses of vitamin D3 600 IU/day, 4200 IU/week and 18,000 IU/month on vitamin D status was compared in a randomized clinical trial in nursing home residents. A daily dose was more effective than a weekly dose, and a monthly dose was the least effective.
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.
"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". Booking in for regular trims can keep your hair looking its best.
If you are experiencing thinning or balding, our Bosley experts recommend washing no more than three times a week.
Fine or thin hair: "Fine hair will need to be shampooed as often as every other day to provide it with the moisture it needs to flourish and grow," Courtney says. Cleansing also helps remove buildup and oils that can weigh fine or thin hair down.