Vitamin D & Hair Loss: Why Vitamin D Isn't Enough

Laura VDS
2025-08-09T11:59:54+02:00

Fortunately, there's an easy way to strengthen your hair and nails, without a complicated routine or expensive treatment.

Why Vitamin D for Hair Growth Doesn't Always Help

A vitamin D deficiency can contribute to hair loss or premature graying, but most people don't actually have a serious deficiency. Moreover, many more nutrients are needed for strong, full hair and strong nails.

Vitamin D can help promote hair growth, but only as part of a complete formula. Hair and nails are primarily made up of keratin, and your body needs several vitamins and extracts to build it.

Don't get me wrong, vitamin D is very important for your hair and nails, but on its own it is not enough.

Why Your Hair and Nails Weaken – The Main Causes

Strong, shiny hair and strong nails seem like a given, until they suddenly fail. The cause often lies deeper than just poor hair products. Below, we explain the main causes.

1. Hair loss and brittle nails due to vitamin deficiency

Your hair and nails are made up of keratin , a protein that your body produces itself, but for which it needs the right building blocks.

When your body doesn't get enough of certain vitamins or minerals, it starts prioritizing: vital organs first, then skin, hair, and nails. The result? Reduced keratin production, slower growth, and poorer quality.

Common deficiencies that affect hair and nails:

Biotin : essential for keratin production.

Zinc : supports cell growth and repair.

Vitamins A, C and E : important for healthy cell structures and protection against damage.