What Causes Hair Loss? Definitive Solutions and Treatment Methods

Hair on your pillow in the morning, clumps of hair in the shower drain, or hair left in your brush… Hair loss is a common problem that deeply affects both women and men and damages their self-confidence. Around one in three people worldwide experiences severe hair loss at some point in their lives.

So why does hair loss occur? In what cases does it return to normal, and which are permanent? And what solutions really work? In this article, we comprehensively cover all the causes and types of hair loss, as well as scientifically based treatment methods.

How Much Hair Loss Is Normal?

First, let's clarify: losing hair is normal. A healthy person loses an average of 50 to 100 hair strands per day. A hair strand lives in a three-stage cycle: growth (anagen), regression (catagen), and resting (telogen). The strands that fall out are a natural result of this cycle.

When daily loss exceeds 100 strands, thinning of the hair is noticed, or the loss lasts longer than a few weeks, it is considered pathological hair loss.

Causes of Hair Loss

Hair loss is not caused by a single factor. Many different factors can play a role, from genetics and hormonal imbalances to nutritional deficiencies and stress.

1. Genetics (Androgenetic Alopecia)

The most common cause of hair loss is androgenetic alopecia, commonly known as "hereditary loss" or "male-pattern loss." It occurs in 50% of men and 30-40% of women.

The basic mechanism is as follows: In people with a genetic predisposition, the DHT (dihydrotestosterone) hormone shrinks the hair follicles. This process is called follicle miniaturization, and over time, the follicle becomes dysfunctional.

• In men: Receding hairline and thinning at the crown
• In women: Diffuse thinning throughout the hair, thinning starting from the center

💡 Solution focus: DHT-blocking ingredients (Saw Palmetto, Procapil) and follicle-nourishing actives (Biotin, Pisum Sativum) provide scientific support for this type of loss.

2. Hormonal Changes

Hormone balance directly affects the hair cycle. Hormonal hair loss is especially common during the following periods:

• Pregnancy and postpartum: The drop in estrogen after childbirth can cause postpartum telogen effluvium.
• Menopause: Hair thins and loss increases with the decrease in estrogen.
• Thyroid disorders: Both hypo- and hyperthyroidism cause hair loss.
• Polycystic ovary syndrome (PCOS): Follicles shrink due to excess androgens.

3. Nutritional Deficiencies

Hair strands are nourished by follicle cells, which are among the fastest-growing cells in the body. Therefore, nutritional deficiencies directly affect hair health:

Deficiency	Effect on Hair
Iron (Ferritin)	One of the most common causes of hair loss. It is especially important in women.
Biotin (Vitamin B7)	Required for keratin production; deficiency makes hair thin and brittle.
Vitamin D	Regulates the follicle cycle; deficiency is associated with telogen effluvium and alopecia areata.
Zinc	Critical for protein synthesis and cell repair; deficiency causes diffuse loss.
Protein	95% of a hair strand is made of keratin (protein). Inadequate protein intake directly affects the hair.

4. Stress and Telogen Effluvium

Mass hair loss can begin 2–4 months after experiencing severe physical or emotional stress. This is called telogen effluvium. Fever, major surgery, grief, sudden weight loss, or chronic stress can be triggers.

Good news: Telogen effluvium is generally temporary. After the trigger is removed, hair begins to return to normal within 3–6 months.

5. Other Common Causes

• Alopecia areata: Patchy loss caused by the immune system attacking the follicles.
• Fungal infection (tinea capitis): A condition seen especially in children that requires treatment.
• Medication side effects: Chemotherapy, blood thinners, and antidepressants can cause hair loss.
• Improper hair care: Frequent dyeing, heat treatments, tight buns, and ponytails can cause follicle damage (traction alopecia).
• Scalp conditions: Psoriasis, eczema, or seborrheic dermatitis can disrupt the follicle environment and increase loss.

Treatment Methods for Hair Loss

There is no "one-size-fits-all" solution for hair loss. Treatment is tailored to the cause and severity of the loss. Here are the main scientifically based approaches:

Topical Treatment with Clinically Active Ingredients

Products applied to the scalp can be effective in slowing loss, especially in the early stages, and protecting follicle health:

Active Ingredient	Mechanism of Action
Procapil (5%)	Increases follicle nourishment, fights DHT, and slows follicle aging. Clinical studies have shown it significantly reduces loss.
Saw Palmetto	Reduces DHT production by inhibiting the 5-alpha reductase enzyme; offers a natural alternative for androgenetic loss.
Biotin	Strengthens the keratin foundation and regulates the hair growth cycle.
Pisum Sativum	Prolongs the anagen (growth) phase, allowing hair to stay in the strands longer.
Urtica Dioica	Reduces inflammation on the scalp and stimulates microcirculation.
Panthenol (B5)	Nourishes the follicle environment, strengthens the hair strand, and prevents breakage.

Nutrition and Supplements

Get your blood levels checked; correct any deficiencies. The most common deficiencies associated with hair loss are:

• Ferritin (iron stores) — an ideal level of 70 ng/mL or higher is recommended
• Vitamin D — 40–60 ng/mL is optimal
• Vitamin B12
• Zinc
• Thyroid hormones (TSH, sT3, sT4)

Hair Transplant (FUE / DHI)

In advanced loss where medical treatments are insufficient, hair transplantation using the FUE (Follicular Unit Extraction) or DHI (Direct Hair Implantation) method offers a permanent and effective solution.

Proper care after hair transplantation directly affects the graft survival rate and the quality of the final result. The products used during this process should:

• Have a gentle, non-irritating formula
• Have a pH-balanced structure
• Contain soothing ingredients such as Calamine, Panthenol, or Allantoin
• Be free of SLS, parabens, and alcohol

💡 Provederm Note: Hair Repair Foam Shampoo and Panthenol Moisturising Foam have been developed to meet all these criteria with formulas specially designed for the sensitive period after hair transplantation.

Medical Treatments

• Minoxidil: FDA-approved topical application; stimulates the follicle and prolongs the growth phase.
• Finasteride / Dutasteride: Suppresses DHT production; used only in men and requires a prescription.
• PRP (Platelet Rich Plasma): Follicle activation is provided with growth factors obtained from the person's own blood.
• Mesotherapy: Follicles are nourished by injecting a mixture of vitamins and minerals into the scalp.
• Low-Level Laser Therapy (LLLT): Light therapy that stimulates follicle cells; home-use devices are also available.

Daily Habits to Prevent Hair Loss

• Avoid washing your hair too often and with very hot water
• Dry your hair gently instead of rubbing it harshly with a towel
• Use a hair dryer on a cold or warm setting if possible
• Leave your hair down instead of wearing tight hairstyles (buns, ponytails)
• Limit hair dye and chemical treatments as much as possible
• Get enough sleep; cortisol (the stress hormone) negatively affects follicles
• Eat a balanced diet rich in protein, iron, and B vitamins
• Massage your scalp regularly; it increases microcirculation

Frequently Asked Questions

Does hair loss ever completely stop?

It depends on the cause. Telogen effluvium, nutritional deficiencies, or hormonal hair loss generally stop when the trigger is removed. Androgenetic alopecia is progressive; however, it can be slowed with early intervention and stopped in some cases.

Will lost hair grow back?

Yes, if the follicle is still alive. If follicle miniaturization is not yet complete, hair can be regained with the right treatment. If the follicle has permanently closed, a solution is possible only through hair transplantation, not medical treatment.

Which doctor should I see?

For hair loss, you should primarily consult a dermatologist. If hormonal causes are suspected, a joint evaluation with endocrinology and gynecology may be necessary.

Does shampoo choice make a difference in hair loss?

Yes, it makes a meaningful difference. Harsh shampoos containing SLS and parabens can disrupt the scalp barrier. Clinically formulated shampoos containing active ingredients such as Procapil, Biotin, and Saw Palmetto help slow loss while nourishing the follicles.

Is hair serum or shampoo more effective?

They complement each other. While shampoo cleanses the scalp and partially delivers active ingredients, serum does not need to be rinsed out, allowing the active ingredients to stay on the scalp for much longer. For the best results, it is recommended to use both together.

Conclusion

Hair loss is a highly manageable condition when its cause, type, and onset are correctly identified. Early intervention always yields better results. Consulting a dermatologist, having your blood levels checked, and regularly using products containing scientifically proven ingredients are the best first steps.

At Provederm, we use only scientifically backed active ingredients in our fight against hair loss and develop each of our products to clinical standards. Because your hair deserves a real solution.

This content is for informational purposes only and is not a substitute for medical advice. Please consult a dermatology specialist for hair loss.