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Nutrition for Hair Growth: Iron, Protein, Vitamin D and Supplements

Which nutrient deficiencies are linked to hair loss, which tests are worth asking about, and what the evidence says about supplements.

Female Pattern Hair Loss: A Complete Guide for Women

How thinning shows up differently in women, the role of hormones, menopause and nutrition, the Ludwig scale, and the options worth discussing.

Telogen Effluvium: Why Sudden Shedding Happens and How It Recovers

A calm, detailed guide to trigger-related shedding: the timeline, common causes, how it differs from pattern hair loss and what helps recovery.

Hidden Causes of Hair Loss: Thyroid, Iron, Medications and More

The medical and lifestyle factors that can cause or worsen thinning, and the questions worth asking your doctor.

How Much Hair Shedding Is Normal? A Practical Guide

Daily hair counts, wash-day shedding, seasonal changes and the signs that shedding deserves a closer look.

Itchy or Sensitive Scalp: Common Causes and Gentle Fixes

From product allergies to psoriasis: what makes a scalp itch, how to find the trigger, and when itching signals something more.

Scalp Psoriasis vs Seborrheic Dermatitis: A Practical Guide

Two common inflammatory scalp conditions that look alike — how they differ, how they are treated, and their effect on hair.

Hair Breakage vs Hair Loss: Causes, Signs and How to Stop It

Short broken pieces aren't the same as shed hairs. How to tell them apart and reduce damage from heat, color, tension and friction.

Hair Loss in Your 20s: A Guide for Young Men

Early pattern loss is common. What's normal, when to act, and how to think about long-term options calmly.

Widening Part: Causes, Ludwig Scale and What Helps

A widening part is the classic sign of female pattern hair loss. How to measure it, what else it could be, and your options.

Postpartum Hair Loss: Why It Happens and When It Stops

Heavy shedding a few months after giving birth is common and usually temporary. What to expect month by month and what's safe.

Vitamin D

Low vitamin D is linked with several types of hair loss.

Biotin

A B-vitamin found in most hair supplements. It helps if you're deficient, which is uncommon.

Niacinamide

A calming vitamin used in scalp serums to support a healthy-feeling scalp.

Vitamin D

A vitamin involved in the hair cycle; low levels are linked with hair loss.

Biotin

A B vitamin involved in keratin production. True deficiency is rare, and high doses can interfere with some lab tests.

Blood panel

A set of blood tests; for hair loss it often includes iron, thyroid and vitamin D.

Nutritional deficiency

Lacking a nutrient such as iron, zinc or vitamin D.

Niacinamide

Vitamin B3, used in calming scalp serums.

Viviscal

Viviscal is a hair-supplement brand built around a marine protein complex plus vitamins and minerals. It is not a Minoxidil product.

FOLIGAIN®

FOLIGAIN® is the publisher of this resource. Its range combines OTC Minoxidil for men and women with cosmetic TRIOXIDIL® shampoos, conditioners and serums, scalp tools and supplements, so a full routine can come from one brand.

Hims

Hims is a US telehealth brand for men. It sells OTC topical Minoxidil (5% solution and foam) directly, and after an online consultation with a licensed provider it can prescribe oral finasteride (generic Propecia®) or compounded combination products such as its topical finasteride 0.3% + Minoxidil 6% spray.

BosleyMD

BosleyMD is the retail range connected to Bosley, known for hair-restoration clinics. It sells men's and women's Minoxidil plus shampoos, conditioners and supplements.

Lipogaine

Lipogaine combines Minoxidil with added cosmetic ingredients in some products. The exact formula is on each label.

Nutrafol

Nutrafol is a hair-wellness supplement brand. Supplements are regulated differently from OTC drugs and are not Minoxidil products; they are compared on approach, not as substitutes.

Pura D'or

Pura D'or is best known for cosmetic anti-thinning shampoos and conditioners.

Can diet cause hair loss?

Crash diets, very low protein and low iron, zinc or vitamin D can all contribute to shedding.

Thyroid-related hair loss

Both underactive and overactive thyroid can cause diffuse thinning. Hair typically improves once thyroid levels are treated.

Iron deficiency hair loss

Low iron stores (ferritin) are linked with increased shedding, especially in women with heavy periods or plant-based diets.