FACTS AND MISCONCEPTIONS

Hair-loss myths: facts and misconceptions

Not every type of hair loss has the same cause. General promises about shampoo, oil or supplements therefore do not always help you choose a next step.

Written by the TRIX Basic team

Medically reviewed by Prof. dr. Sherief Janmohamed · Dermatologist

Medically reviewed on 28 October 2026

Briefly summarized

Not every type of hair loss has the same cause. General promises about shampoo, oil or supplements therefore do not always help you choose a next step.
The cause and your situation determine which next step is appropriate.
Ask for advice if you are concerned.

Woman gently detangling damp hair with a wide-toothed comb

INFORMATION AND EXPECTATIONS

Causes and care: the first four misconceptions

1. Hair loss is always hereditary

Hereditary predisposition is one cause. Illness, stress, weight loss and iron deficiency can also play a role. Read about different hair-loss patterns.

2. Hair loss is always permanent

Some forms are temporary; others last longer. The course depends on the cause; recovery is not the same for everyone.

3. A shampoo that makes hair look fuller grows new hair

More volume or less breakage is different from new hair growth. Explore the distinction in shampoo and hair loss.

4. Washing your hair less often resolves hair loss

Washing less often does not automatically treat the cause. Gentle care and careful handling of fragile hair are more useful than aggressive washing or pulling.

INFORMATION AND EXPECTATIONS

Stress, nutrition and supplements: three misconceptions

5. You can always recognise stress-related hair loss immediately

A pattern and timeline can offer clues, but they are not a diagnosis. The explanation of hair loss due to stress helps you understand this distinction.

6. Everyone with hair loss needs extra vitamins

A deficiency and a normal nutritional status require different approaches. Do not take high doses on your own initiative: too much of certain nutrients can be harmful.

7. A supplement treats every cause

Research into a nutritional deficiency does not establish this. A supplement does not replace assessment or necessary medical treatment.

Woman looking at loose hairs in her brush

Woman receiving advice while her hair and scalp are examined

INFORMATION AND EXPECTATIONS

Research, price and diagnosis: three misconceptions

8. Rosemary oil is proven to be the same as minoxidil 5%

The frequently cited study compared it with 2%, not 5%. Read the explanation of rosemary oil and the limitations of the research.

9. A treatment works for everyone

Results vary. Even treatments supported by evidence do not help everyone and may have conditions of use or side effects.

10. Hair loss is only a cosmetic problem

Hair loss can affect how you feel and may sometimes be associated with a medical condition. Discuss your concerns with your GP.

Important to know

This information does not replace a medical assessment. Ask your GP for advice if you are concerned about hair loss. The Hair Check does not provide a diagnosis.

Questions about hair-loss myths

No. There are different causes, and a pattern alone is not a diagnosis.

No. A deficiency and a normal nutritional status require different approaches.

No. A cosmetically fuller appearance or less breakage does not automatically mean new hair growth.

No. What is appropriate depends on the cause and your situation.

No. The Hair Check is a guide to your options and does not replace a medical assessment.

Contact your GP if you are concerned about your hair loss.

Sources and medical background

FIND YOUR NEXT STEP

Want to understand your hair-loss pattern better?

The Hair Check helps you explore your situation. It is a guide to your options, not a medical diagnosis.

Start the Hair Check Explore types of hair loss

Hair-loss myths: facts and misconceptions

Briefly summarized