Why Does Hair Fall Out? How Biotin and the Gut Are Connected

We often look for the cause of hair loss in external care — changing shampoos, trying new masks, hoping our hair will become thicker. But the real root of this problem lies not only on the head, but also… in the gut.
It may sound unexpected, but the state of the intestinal microflora directly affects how well the body absorbs vitamins — especially biotin, also known as the beauty vitamin.

Biotin — The Vitamin That Strengthens Hair

Biotin (vitamin B7) plays a key role in producing keratin — the main structural protein of hair. It influences hair strength, shine, and natural elasticity. Biotin also helps regulate scalp oil balance, making the hair look healthy and well-groomed.

Main functions of biotin:

• strengthens hair follicles
• supports natural hair shine
• helps normalize sebaceous gland activity
• participates in processes important for healthy skin and nails

However, even if you consume enough biotin through food or supplements, your body might not absorb it properly. Here’s why.

Why the Body May Not Absorb Biotin

Biotin is partially synthesized by beneficial bacteria that live in the gut. When this balance is disturbed, the body can’t produce enough biotin on its own.

Factors that interfere with biotin absorption from supplements or food sources include:

• gut microbiota imbalance (dysbiosis)
• stress, lack of sleep, chronic fatigue
• poor diet or fiber deficiency
• prolonged antibiotic use
• excessive alcohol consumption
• inflammatory gut conditions

As a result, hair becomes dull, thin, and weak — and even taking extra biotin may not help.

Signs of Biotin Deficiency

How can you tell if your body needs extra support? Look out for these symptoms:

• increased hair loss
• brittle nails
• dry or oily, flaky skin
• fatigue, apathy, irritability
• digestive issues

These are your body’s signals that it’s time to take care of yourself — starting from within.

How to Stop Hair Loss Naturally

To make your hair strong and shiny again, you need not only to supply biotin but also to ensure your body can absorb it — by supporting gut health.

Zafacol IQ — Care from the Inside Out

Zafacol IQ is a dietary supplement for adults and children aged 12 and above, developed by Vorwarts Pharma in accordance with European quality standards.

Zafacol IQ combines butyric acid, vitamin D₃, prebiotics, and probiotics that help:

• support healthy intestinal function,
• maintain microflora balance, and reduce discomfort.

When your gut works harmoniously, your body absorbs vitamins more effectively — including biotin, iron, and zinc — all essential for hair growth and strength.

Healthy Hair Starts with Inner Balance

Thick, strong hair isn’t just the result of good care — it’s also a reflection of internal harmony. When your body receives what it needs, your hair thanks you with shine and vitality.

Learn more about Zafacol IQ — a high-quality dietary supplement for the whole family, designed to support your natural inner balance.

FAQ

How do I know if my hair loss is caused by a biotin deficiency?
If you notice excessive hair shedding, brittle nails, and dry skin — these may be signs of low biotin levels.

Do hair vitamins work without restoring gut microflora?
They may be less effective since the gut is responsible for absorbing biotin and other vital micronutrients.

What is included in the Zafacol IQ formula?
The formula contains carefully selected ingredients that support a balanced microbiota and comfortable digestion.

Vorwarts Pharma is a European company that produces dietary supplements according to international standards — helping everyone experience harmony from within.