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Horsetail is used in many Hair Vitamin supplements - But is it safe? What are the side effects.

Posted by Dr Larry Shapiro is the inventor of Help Hair Shake and Products for Fuller, Thicker Hair. on

Horsetail is used in many Hair Vitamin supplements - 

What are the side effects?

It has Silica which strengthens hair.

But is it safe. Does your Hair Vitamin contain Horsetail?

Many companies use horsetail  in their formulas without placing the 

proper warning label on their products. 

According to WebMD, Medline and Materia Medica  there are multiple side

effects with Horsetail.

HORSETAIL SIDE EFFECTS & SAFETY

"Horsetail is POSSIBLY UNSAFE when taken by mouth long-term. It contains a chemical called thiaminase, which breaks down the vitamin thiamine. In theory, this effect could lead to thiamine deficiency. Some products are labeled "thiaminase-free," but there is not enough information available to know if these products are safe."

Special Precautions & Warnings:


Alcoholism: People who are alcoholics are generally also thiamine deficient. Taking horsetail might make thiamine deficiency worse.

Diabetes: Horsetail might lower blood sugar levels in people with diabetes. Watch for signs of low blood sugar (hypoglycemia) and monitor your blood sugar carefully if you have diabetes and use horsetail.

Low potassium levels (hypokalemia): Horsetail might flush potassium out of the body, possibly leading to potassium levels that are too low. Until more is known, use horsetail with caution if you are at risk for potassium deficiency.

Low thiamine levels (thiamine deficiency): There is a concern that horsetail could make thiamine deficiency worse.

Lithium interacts with HORSETAIL

Horsetail might have an effect like a water pill or "diuretic." Taking horsetail might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.

Read the full reference:

WebMD.  Read more about Horsetail....

Other  valuable resources is

Materia Medica.   Read more about Horsetail....

Medline .  Read more about Horsetail 

Horsetail needs to be used with caution. 

Check to see if you your hair supplement has Horsetail.

Help Hair Products contain NO Horsetail.

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