Does Taking Vitamin D Make Your Hair Grow Faster?

Health experts recommend incorporating vitamin D-rich foods into the diet and getting regular sunlight exposure to improve vitamin D levels and promote resilient hair health and growth.

Poor hair growth is a common problem affecting people of all ages, as well as imbalanced hormones and inadequate nutrition. Evidence suggests vitamin D deficiency can lead to hair loss and other hair problems.

How Does Vitamin D Help In Hair Growth?

Vitamin D is mainly linked to healthy immune function and bone health. However, its role in promoting hair growth is gaining traction in dermatology and trichology. Several research studies have demonstrated that vitamin D influences hair growth. When we consume enough vitamin D, it promotes follicle growth and healthy and lustrous hair. Before delving deeper into the link between hair growth and vitamin D, it's pertinent to discuss the essential role of vitamin D and the hair growth cycle. Body upon exposure to sunlight, seafood, fatty fish, egg yolk, cheese, milk, and fortified foods mineralisation, calcium absorption, and immune functioning.

Role Of Vitamin D In Hair Growth

The hair growth process comprises three stages, explains Nutritionist Aman Puri, Founder of Steadfast Nutrition:

The anagen phase is the active growth stage during which hair follicles produce new hair strands; the catagen phase is when hair follicles prepare to enter the resting phase; and the telogen phase is when hair shredding happens before the cycle restarts.

1. Stimulates stem cells of hair follicles: Stem cells of hair follicles play a pivotal role in the regeneration and maintenance of hair. Vitamin D has been observed to stimulate the activation and proliferation of these cells (stem cells) by encouraging growth of new hair follicular strands and preventing miniaturisation of follicles that result in poor hair health, a well-known characteristic of hair loss conditions such as androgenetic alopecia.
2. Anti-inflammatory property: Vitamin D exhibits anti-inflammatory properties, which are fruitful for the scalp environment and improve health. Seborrheic dermatitis and alopecia are inflammatory conditions which can interrupt hair growth cycles and cause hair loss. Hence, by reducing scalp inflammation, vitamin D can improve these conditions and promote better hair health.
3. Regulates and improves Hair Cycle: Several studies suggest vitamin D may affect the duration of the hair growth process. Sufficient vitamin D parameters encourage a longer anagen phase, promoting the growth of hair follicles and lengthening strands before going into the resting phase, resulting in sound and thicker hair with less shedding.
4. Enhances Hair Follicle Health: Vitamin D receptors are present in hair follicles, directing its necessity in hair growth. Vitamin D helps in the differentiation and proliferation of keratinocytes, the primary cells in the hair follicles. The vitamin helps maintain a favourable environment for better hair growth by supporting their function and health.

Hence, health experts recommend incorporating vitamin D-rich foods into the diet and getting regular sunlight exposure to improve vitamin D levels and promote resilient hair health and growth.