What does magnesium do to your hair?

Author: Ms. Alexandra Emard PhD  |  Last update: Friday, November 7, 2025

Magnesium plays a role in the functioning of enzymes involved in DNA and RNA synthesis, as well as in cell replication [4]. That means that it helps support normal hair strand growth [5]. Moreover, it is also involved in the production of proteins, which your hair needs to remain healthy and strong.

Is magnesium good for your hair?

Yes, magnesium—commonly associated with bone health and muscle function—also plays a significant role in maintaining healthy hair.

How much magnesium for hair growth?

There are no reports of toxicity to excess biotin intake, including for the kidneys. How much magnesium should I take for hair growth? The RDA of magnesium for adults is 400–420 mg per day for men and 310–320 mg per day for women.

What are signs of too much magnesium?

Symptoms of overdose (rare in individuals with normal kidney function)
  • Blurred or double vision.
  • coma.
  • dizziness or fainting.
  • drowsiness (severe)
  • increased or decreased urination.
  • slow heartbeat.
  • troubled breathing.

Does magnesium help reverse grey hair?

There isn't a lot of medical data to back it up, but some research does show that magnesium deficiency may be behind some (not all) causes of gray hair. If this is the cause of your greying, then making sure your magnesium stores are optimal could stop or even reverse the greying of your hair.

Magnesium Deficiency: Symptoms and Supplements - 2024

Why is my gray hair turning black again?

That said, certain conditions may temporarily restore pigmentation. For example, if greying is caused by a vitamin deficiency, stress, or an underlying medical condition, addressing these issues may slow or even partially reverse greying. However, the complete reversal of naturally aged hair remains a challenge.

What is the best magnesium for hair growth?

Magnesium glycinate is a combination of two molecules, magnesium and amino acid glycine. Combining magnesium with amino acid boosts its bioavailability. It means that it is one of the best magnesium supplements to prevent hair loss.

What organ is most affected by magnesium?

Causes. Every organ in the body, especially the heart, muscles, and kidneys, needs the mineral magnesium. It also contributes to the makeup of teeth and bones. Magnesium is needed for many functions in the body.

What happens to your body when you take magnesium every day?

Should healthy people take magnesium supplements? The claimed benefits of magnesium supplementation range from boosts in everyday wellness — better sleep, increased energy levels and improved mood — to specific health benefits, such as lower blood pressure, reduced risk of heart disease and improvement in migraines.

What vitamins should not be taken with magnesium?

Don't use calcium, zinc, or magnesium supplements at the same time. Also, these three minerals are easier on your tummy when you take them with food, so if your doctor recommends them, have them at different meals or snacks.

Does magnesium increase facial hair?

Dietary supplementation with magnesium and zinc are also thought to help prevent growth of excess facial hair.

What vitamin am I lacking if my hair is falling out?

Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss. Vitamin B2 (riboflavin) is a component of two important coenzymes: flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) [22].

Can magnesium help with weight loss?

By optimising metabolic function, magnesium can help increase calorie and fat burning even during rest. This boosted metabolism and energy expenditure then translates into easier weight loss.

Can magnesium reverse hair loss?

The few existing studies reveal that magnesium supplementation had no significant impact on certain kinds of hair loss, such as alopecia areata [15][16]. It should, however, prevent further unnecessary hair shedding associated with magnesium inadequacy.

What is the best vitamin for hair growth?

Vitamin D.

Vitamin D is essential for creating the cells that develop into hair follicles. It also supports healthy bones and your immune system. If you have hair loss and low vitamin D levels, your doctor may recommend vitamin D supplements.

How do you know if you're magnesium deficient?

What are the symptoms of magnesium deficiency?
  • low appetite.
  • nausea and vomiting.
  • fatigue and weakness.
  • muscle spasms or tremors.
  • abnormal heart rhythms.

Should I take magnesium in the morning or at night?

Best Time to Take: Morning or early afternoon. Taking magnesium in the morning with breakfast or in the early afternoon helps you take advantage of its energizing effects. Recommended Types: Magnesium malate is known for its energy-supporting properties.

What is the most common side effect of magnesium?

More common side effects from magnesium include upset stomach and diarrhea. Magnesium competes with calcium for absorption and can cause a calcium deficiency if calcium levels are already low. Some medications may lower magnesium levels in the body.

Is magnesium good for your liver?

Among all known macro-minerals, magnesium has a key role in energy metabolism and in metabolic and signaling pathways that maintain liver function and physiology throughout its life span.

What drains magnesium from your body?

A high-saturated fat diet reduces magnesium absorption in the intestines. High sugar intake increases excretion of magnesium by the kidneys. Phosphates found in carbonated beverages such as dark-colored sodas bind magnesium, rendering it unusable by the body.

What medication cannot be taken with magnesium?

When choosing a supplement, look for independently tested products and consult a healthcare provider, registered dietitian nutritionist (RDN or RD), or pharmacist.
  • Some Antibiotics. ...
  • Bisphosphonates. ...
  • Blood Pressure Medications. ...
  • Certain Diabetes Drugs. ...
  • Digoxin. ...
  • Diuretics. ...
  • Penicillamine. ...
  • Proton Pump Inhibitors (PPIs)

What are the 10 signs of high magnesium?

If the body has absorbed too much magnesium, a person may notice any of the following symptoms, which can range from mild to very severe:
  • lethargy.
  • facial flushing.
  • diarrhea.
  • nausea.
  • stomach cramps.
  • vomiting.
  • depression.
  • muscle weakness.

What is the hair pull test?

Pull Test and Tug Test

This simple test measures the severity of hair loss. During a pull test, a dermatologist grasps small sections of hair, about 40 strands, from different parts of the scalp and gently tugs. If six or more strands fall out, you have what's known as active hair loss.

Does magnesium deficiency cause body odor?

What deficiency causes body odor? Zinc or magnesium deficiencies can lead to worse body odor because they affect how you metabolize foods, which influences smell.

What mineral makes hair grow faster?

Hair growth is no different and, in fact, several nutrients are absolutely critical for regular hair growth — vitamins A, C, biotin (B7), and D, and the essential minerals iron, zinc, and iodine. Together, these minerals provide the nutritional foundation for fuller, thicker, shinier-looking hair.

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