Vitamin B1 (Thiamine) for Hair: How Does It Help?

HK Vitals

Medically Reviewed By Dr. Aarti Nehra

Whatever your hair type, hair fall is a common concern. While we all try different products and follow strict hair care routines, one supplement to vouch for is Vitamin B1. The B vitamin is a versatile ingredient that helps hair health in several ways. Let’s understand the role of Vitamin B1 benefits for hair:

What is Vitamin B1?

Vitamin B1, scientifically known as thiamine, is one of the B-complex vitamins that support essential biochemical reactions and processes in the body. Vitamin B1 is a water-soluble vitamin that aids in converting food nutrition into usable energy. 

Thiamine Benefits for Hair

As Vitamin B1 is important for the metabolism of macro and micronutrients in the body, the nutrient plays an important role in boosting overall health, including hair health. The key thiamine benefits for hair are:

Improves Scalp Health

Thiamine reduces blood vessel constriction. The dilated blood vessels carry more oxygen and nutrition to the hair follicles. Well-nourished hair follicles support better hair growth with healthier hair strands.

Reduces Hair Fall

Studies show that Vitamin B1 deficiency is directly linked to increased hair fall. Its role in the body’s energy metabolism processes converts nutrients into energy that is used by the hair follicles. Therefore, restoring the levels of the vitamin in the body is a potent remedy to reduce hair fall.

Strengthens Brittle Hair

Brittle hair is a result of increased oxidative stress. Vitamin B1 is a potent antioxidant that fights the free radicals in the body. It fights oxidative damage and nourishes the hair from within, preventing it from split ends and brittleness.

Adds Hair Luster

Thiamine for hair is an overall tonic for hair growth. It ensures hair that is healthier from the roots to the ends. This adds strength, volume, and luster to the hair, making it more manageable and glossy.

Thiamine – Which Hair Type Benefits Most?

Unlike many other ingredients that help specific hair types, thiamine for hair is an elixir for all types. This is typically due to its primary role of energy conversion within the body. Restoring vitamin B1 deficiency and providing an additional supply of the vitamin can thus help address problems like frizzy, brittle, thin hair and hair loss for all hair types.

How to Use Thiamine for Hair Fall?

Vitamin B1 is a water-soluble vitamin that is easily absorbed into the bloodstream. It can be obtained both through dietary sources and oral supplements. 

Dietary Sources – Adding thiamine-rich foods to your daily diet is a healthy way to boost levels. The best food sources of thiamine are:

  • Fortified cereals and grains
  • Animal sources like pork, and fish
  • Plant sources namely, beans, lentils, legumes, whole grains, and green peas
  • Sunflower seeds
  • Yogurt

Oral Supplements – Popping a B-complex pill is the easiest way to boost thiamine levels. It is also the fastest way to correct Vitamin B1 deficiency which is the leading cause of hair loss.

Hair Care Products – Vitamin B1 is a commonly found ingredient in many hair care products. It is often used in conjunction with other ingredients to support hair health. Vitamin-enriched shampoos and conditioners support healthy hair, whereas, hair serums and leave-in treatments that contain Vitamin B1 help target specific hair concerns like breakage, hair fall, and thin hair. One can also try Vitamin B1-enriched hair masks for deep conditioning and nourishment.


While everyone suffers from hair loss, not all are aware of its deeper link. Vitamin B1 is a key vitamin for promoting healthy hair growth and addressing common hair concerns. It works through its energy conversion mechanism to ensure an adequate supply of nutrients to the hair follicles. What makes it superior to other hair fall remedies is that it benefits all, regardless of hair type. Simply add Vitamin B1 to your diet or hair care regime to enjoy the splendid thiamine benefits for hair.

HK Vitals


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