Testing on hair growth products: Foundation Warentest alerts consumers about potential adverse effects
In the world of hair loss, two active ingredients have shown significant effects in combating the issue - Minoxidil and Finasteride.
Minoxidil, originally developed as a blood pressure medication, is now available over the counter for hair loss treatment. It boasts a higher concentration of 5 percent for women's products, compared to the standard 2 percent. The foam variant of Minoxidil is easier to apply and does not contain propylene glycol compounds, which can cause irritation in sensitive skin. However, medical advice is necessary before using Minoxidil due to potential side effects, particularly for people taking blood pressure medication or suffering from a heart condition.
Initial use of Minoxidil may cause temporary hair loss, known as 'shedding,' and may also cause itching or scalp flaking. If used incorrectly, hair may grow on unwanted areas, such as the forehead.
On the other hand, Finasteride, a prescription-only medication, works by inhibiting an enzyme that converts testosterone into dihydrotestosterone (DHT), a primary cause of androgenetic alopecia. Products containing Finasteride are available as Finasteride Aurobindo or Propecia. Finasteride can cause a range of side effects, including sexual dysfunction, loss of libido, erectile dysfunction, breast enlargement, and ejaculation disorders.
Dihydrotestosterone, an active form of testosterone, is a cause of androgenetic alopecia. It causes the hair follicles and underlying blood vessels to shrink, impairing the nutrient supply to the hair. Androgenetic alopecia, a type of hereditary hair loss, affects up to 70% of men and 40% of women. Prolonged hair loss beyond the usual amount can be a sign of androgenetic alopecia.
It's essential to note that hormonal fluctuations, medications, and diseases can also cause hair loss. Stiftung Warentest has tested ten hair loss treatments and found that combination preparations with estradiol are not suitable.
Besides Minoxidil and Finasteride, other active ingredients recommended for long-term treatment of androgenetic alopecia include natural compounds such as a combination of Capasicin, Serenoa extract, apple stem cells, antioxidants, vitamin complexes, minerals, vasodilators, placenta proteins, and soy proteins. Nutritional supplements like Priorin Capsules containing millet extract, vitamin B5, and L-cystine, which strengthen hair roots and promote hair growth, especially in women, are also under consideration. Experimental treatments like PP405, a topical gel targeting hair follicle biology without hormonal effects, are under study for future use.
However, it's crucial to remember that while these treatments can help manage hair loss, they may not stop it entirely. Androgenetic alopecia is a complex condition, and a comprehensive approach, including medical advice, lifestyle changes, and possibly multiple treatments, may be necessary for effective management.
