Horsetail and hair: benefits, use, precautions

Field horsetail (Equisetum arvense) is a silica-rich plant traditionally used in dietary supplements and care products for hair and nails. Its effects on hair are not yet the subject of an approved health claim at European level: it should therefore be used as a complement to a balanced diet, not as a solution for hair loss. It also requires a few precautions for use.

In this article, we take a look at what horsetail is, what we know about its benefits for hair, the precautions to be aware of and the right habits to give body to textured hair.

What is field horsetail?

Field horsetail is a perennial plant that grows in the damp soils of Europe. Its sterile, green, branched stems are what is used. It stands out for its high content of silica, a form of silicon, as well as minerals such as potassium, and flavonoids.

It has long been known in herbal medicine. The European Medicines Agency also recognises its traditional use to promote urinary elimination.

Is horsetail good for hair?

Horsetail is especially valued for its high silica content. Silicon is naturally present in hair and nails, which explains its place in many hair supplement courses.

However, neither horsetail nor silicon currently has an approved health claim for hair in Europe. Claims relating to plants are still awaiting evaluation. For hair, the nutrients whose role is officially recognized are biotin, zinc and selenium, which contribute to the maintenance of normal hair.

That’s why horsetail is usually combined with these nutrients in supplements: it plays a supporting role within a more complete formula.

Horsetail and hair: what precautions?

Natural plant doesn't mean risk-free. Field horsetail is not recommended:

• during pregnancy and breastfeeding;
• in children;
• if you are on diuretic treatment or have a kidney or heart condition, due to its effect on water elimination.

Horsetail also contains an enzyme, thiaminase, which can lower the body's vitamin B1 levels with prolonged use. Quality supplements use extracts treated to limit this risk. Finally, field horsetail should not be confused with marsh horsetail, a toxic species: one more reason to choose a controlled supplement rather than picking it yourself.

If in doubt, or if you are undergoing treatment, ask your doctor or pharmacist for advice.

How to use horsetail for your hair?

Horsetail is mainly taken orally, as a dietary supplement: capsules, powder or extract. Follow the daily dose and course length stated on the label, and avoid combining several products that contain it.

Our Growth Accelerator contains field horsetail, combined with other ingredients. As hair grows slowly, progress is assessed over several months.

If you notice unusual hair loss or breakage, see a doctor or a dermatologist first: there are many possible causes, and a plant alone won't solve everything.

Textured hair: adding body to fine hair

Horsetail is often sought after for fine hair or hair that lacks body. On wavy, curly, coily and afro-textured hair, volume depends above all on how you hydrate and style your curls.

• Choose lightweight treatments: on fine hair, an overly rich treatment weighs down the curl and makes it lose volume.
• Style on damp hair: apply the Styling Mousse to wet hair, working up from the ends to the roots, to define curls while keeping volume.
• Dry upside down or with a diffuser: avoid touching your curls until they are dry, to limit frizz.

Frequently asked questions about horsetail and hair

Does horsetail make hair grow?

No plant makes hair grow faster. Horsetail is traditionally used in hair supplement courses for its high silica content, but this effect is not an approved health claim in Europe.

What is the difference between silica and silicon?

Silicon is a mineral element. Silica is the form in which it is found in horsetail and many plants. Both terms therefore refer to the same nutrient, under two different names.

Who should not take horsetail?

Horsetail is not recommended for pregnant or breastfeeding women, children, or people taking diuretic treatment or who have kidney or heart problems. If in doubt, ask your doctor or pharmacist for advice.

How long should a horsetail course last?

Follow the duration indicated on the supplement label. Avoid prolonged use without medical advice, particularly because of its diuretic effect and the thiaminase it contains.

In summary

Field horsetail is a silica-rich plant traditionally used in hair and nail supplements. Its effect on hair is not yet an approved claim, and it requires a few precautions. Combined with a varied diet and techniques suited to your curls, it can find its place in your routine.

To go further, discover our articles on B vitamins, selenium and zinc, as well as our guide to food supplements for hair growth.

Estelle D.