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Others help by promoting the hair-growth activities, similar to the way medication may work.
Getty / mother image
Results, however, depend on the root cause of hair loss.
Most people, for example, are not in danger of losing their hair due to vitamin deficiencies.
Ahead, dermatologist-approved hair vitamins, all tested by real people who saw results.
Original image byGlamourcontributor Morgan Dixon
Within a few weeks [of Nutrafol], I started to shed significantly less.
Almost a year in, my hair is the thickest its been in 20 years.
Shes noticed herhair growing more quicklysince she started taking it.
Original image byGlamourcontributor Morgan Dixon
Is my hair density overall thicker on my scalp?
I dont think so, she says.
Its a comprehensive multivitamin blend that includes an extra dose of love for your hair.
Original image byGlamourcontributor Morgan Dixon
What our reviewer said:Glamourtester Morgan Dixon began using SuperHair to address sustained postpartum hair loss.
I was honestly shocked by how quickly and efficiently SuperHair worked.
What our reviewer said:Myshafounder Marika Frumes says shes been using WeNatal as her multivitamin.
Original image byGlamourcontributor Morgan Dixon
I was able to actually remove several other supplements that I was taking, as WeNatal was so comprehensive.
She describes the product as excellent for individuals looking toachieve thicker, denser hair.
The most noticeable difference is how my ponytail feels, she says.
What our reviewer said:Ive never been so happy to see so many flyaways in my life!
says Kat, aGlamourreviewer with thin, straight hair whos been taking the product for about eight months.
Even my stylist noticed a difference.
Original image byGlamourcontributor Marika Frumes
More than 80% of Amazon customers give this product a five-star rating, praising its convenience and value.
Just know that swallowing can be difficult for some.
What our reviewer said,Its giant and hardthe biggest vitamin pill Ive ever tried, saysGlamourreviewer Khara Hanlon.
Original image byGlamourcontributor Marika Frumes
I definitely wouldnt take it on an empty stomach; it would make you pukey.
But it has everything you need.
I always recommend an extra 2,000 IUs of vitamin D3every day, she says.
(D3is the natural form of vitamin D thats produced by the body from sunlight.)
These softgel capsules, which are available on Amazon and provide 2,000 IUIs per pill.
My immunity seems relatively strong, Taylor says.
I have also seen some possible mood improvement.
Viviscal Pro has a higher quantity of some of those vitamins and minerals, she says.
Its honestly kind of got a fishy taste, he says.
That was not great.
To get the effects, you should probably take a pill twice a day, so be prepared.
Many moms say this winning formula saved them from losing their locks.
Chicago new mom Ashley Brantman had a similar experience.
I continued with the regular Nutrifol supplement once I was done breastfeeding and never experienced any shedding.
Mary Ruths multivitamin includes one unique ingredient, Lustriva, thats been clinically shown to increase hair thickness.
After three weeks of taking Mary Ruths, the shedding slowed, and after six weeks it stopped completely.
Anderson and other fans of this supplement also enjoy its peach-mango flavor.
Specifically, the science-backed ingredients in thisclinically tested formulationinclude hair-supportive vitamins, nutrients, botanicals, and adaptogens.
The end product, saysGlamourreviewer and esthetician Natalie White, works.
I highly recommend it for those seeking science-backed solutions for hair with results that I can personally vouch for.
Your hair-growth vitamin questions, answered
What causes hair loss?
Some people just have strong hair genes, she says.
They determine your natural growth rate and density.
However, its not all predeterminedlifestyle matters too.
For example, diet and nutrition play an important role in hair health, says Dr. Shirazi.
Similarly, chronic stress can also negatively impact hair growth.
Finally, your hair health may change as you age, says Dr. Zeichner.
On average, hair grows about half an inch per month, but growth rates slow with age.
Individual hairs become finer, and overall density decreases as some follicles go dormant, he says.
Can hair grow back after thinning?
What vitamins are good for thinning hair?
This will typically include saw palmetto, green tea extract, nettle, pygeum, L-lysine, or zinc.
Do supplements make hair grow faster?
What vitamins specifically help with hair growth?
Theres no one secret vitamin or ingredient for hair growth, but rather many that may be helpful.
If this is the case, you may need to look at adjusting other lifestyle factors instead.
Which vitamin deficiency causes hair loss?
Thats why Dr. Zeichner also recommends making sure youre getting an adequate amount of high-quality protein in your diet.
So for people worried about their hair health, he recommends a vitamin D3supplement as pretty much essential.
What are the side effects of hair growth vitamins?
Biotin can also affect your medical lab results (more on that, below).
Does biotin help grow hair?
Experts are split on whether biotin (vitamin B7) is actually effective in bolstering hair health.
And biotin deficiency in developed countries like the United States is extremely rare.
You could get a wrong diagnosis, Dr. Wong warns.
In fact, theFood and Drug Administration issued a warningagainst biotin supplements due to its risks.
Dr. Daveluy says if you do take biotin, be sure to tell all your health care providers.
Dr. Del Campo urges people to first consult with a board-certified dermatologist and then to follow recommended dosages.
What is good for hair growth and thickness naturally?
Unfortunately, hair growth and thickness isnt entirely under your control.
Those with thinner hair will also want to pay attention to their styling choices.
How can you encourage hair growth?
This is where topical or oral medications, like Propecia and Minoxidil, may come into play.
And if you did, the traditional medical therapy would really blow them out of the water.
Do you oughta do anything in conjunction with supplement intake?
