What is folic acid?
A vitamin found in the diet
Folic acid is a form of vitamin B9, like folates, which are grouped under a basic chemical molecule: tetrahydrofolic acid.
It is an essential nutrient for the human body that contributes to:
- amino acid metabolism and the production of DNA, essential for rapidly renewing cells, such as red blood cells
- renewal of integumentary structures (skin, nails, hair)
- proper functioning of the nervous system
- normal fetal development for the formation of its nervous system.
To provide enough vitamin B9 to the body, you can regularly eat cruciferous vegetables such as watercress and cabbages, nuts (hazelnuts, almonds, walnuts), legumes (chickpeas, lentils), fruits (banana, plum, kiwi), as well as animal liver.
Tous ces aliments sont des sources importantes de vitamine B9.
A dietary supplement with multiple benefits
While folates are a natural form of vitamin B9, the term folic acid refers to the synthetic form used in dietary supplements.
Ces compléments sont notamment utilisés lors de la grossesse, quand les apports recommandés chez la femme enceinte atteignent 400 microgrammes par jour, afin d’aider au développement foetal et à la croissance des tissus maternels.
L’acide folique jouerait un rôle dans la prévention des maladies cardiovasculaires, et de certains cancers digestifs et du sein.
Among its other benefits, folic acid intake may reduce fatigue, prevent depression, and contribute to the beauty of the skin thanks to its role in the cell division of epidermal cells.
Mais qu’en est-il de son action sur les cheveux ?
Also read | A pharmacist’s advice for choosing your folic acid
What are the benefits of folic acid for hair?
Strengthens the scalp and fights hair loss
Folic acid is involved in DNA production and cell renewal. It thus promotes the repair of scalp cells and prevents their weakening.
In addition, vitamin B9 contributes to the renewal of skin appendages (nails, hair), helping to combat damaged hair and prevent their breakage, or even hair loss.
Promotes hair growth
Folic acid promotes the renewal of red blood cells, which are responsible for the transport of oxygen.
En augmentant l’oxygénation au niveau du cuir chevelu, la pousse est accélérée et la croissance du cheveu est plus saine.
Improves the appearance of the hair
Vitamin B9 deficiencies are associated with dull, limp-looking hair. Supplementation can prevent deficiency and restore a normal appearance to the hair, making it stronger and shinier.
Additionally, vitamin B9 contributes to better nutrient absorption, which can also potentially play a role in hair strength and shine.
Une étude a montré une augmentation de la densité des cheveux, de leur brillance, ainsi que chez des femmes ayant été supplémentées avec un ensemble de vitamines et minéraux, dont l’acide folique.
Pour tous les bienfaits de cette vitamine B9, d’autres recherches scientifiques méritent d’être entreprises.
