What to do when hair stops growing back: What to do when lost hair disappears?

You stand in front of the mirror and discover that your hair is thinning in some places or simply not growing back. This phenomenon worries many people – and it's not always just a natural part of aging. Have you ever wondered why the lost hair isn't being replaced? In this article, you'll learn about the underlying causes, how to recognize the first signs, and which hair care routines you can use to specifically combat problematic hair loss. It's important to remember: the sooner you take action, the better you can support hair growth before the hair follicles become permanently inactive.

Understanding the causes: Why hair that falls out doesn't grow back

Hair loss is a complex phenomenon. It's often not just due to the natural hair growth cycle, but also to other internal and external factors that prevent hair regrowth. The most important causes include:

Hair cycle and disorders

Each hair goes through a natural life cycle consisting of three phases: the growth phase (anagen), which normally lasts 2-7 years and in which 85-90% of all hairs are; the transition phase (catagen), which lasts about 2-3 weeks; and the resting phase (telogen), which lasts 3-4 months before the hair falls out and a new one grows back.

If this cycle is disrupted, for example by hormonal fluctuations, chronic stress, or medication, the growth phase can be drastically shortened. This leads to more hairs entering the resting phase and falling out simultaneously, while fewer new hairs grow back. The result: Hair density decreases continuously, and the regrowing hairs become increasingly thin and shorter.

Genetic predisposition

In androgenetic alopecia – the most common form of hair loss – the hair follicles are hypersensitive to the hormone dihydrotestosterone (DHT), a derivative of the male sex hormone testosterone. DHT binds to the receptors of the hair follicles and leads to a gradual miniaturization: The follicles become smaller, produce thinner hairs, and shorten their active growth phase.

Over time, the follicles atrophy completely and no longer produce new hair. In men, this process typically begins at the temples and crown, while in women it tends to manifest as diffuse thinning in the crown area.

Damage to the hair follicles

Mechanical stress can cause lasting damage to hair follicles. Tight hairstyles, such as braids or buns, create constant tension on the hair roots, a condition known as traction alopecia. Extensions or hairpieces worn for extended periods can also overload the follicles.

Aggressive styling methods such as frequent dyeing, bleaching, or perming with chemical substances also damage the scalp and can lead to inflammation. Skin conditions like psoriasis, seborrheic dermatitis, or fungal infections further impair the regenerative capacity of the follicles and prevent healthy hair regrowth.

Nutrient deficiency

The body needs a variety of nutrients to produce healthy hair. The following are particularly important:

• Biotin (Vitamin B7): Supports keratin production, the main component of hair.

• Zinc: Regulates sebum production and promotes cell division

• Iron: Transports oxygen to the hair roots

• Vitamin D: Activates dormant hair follicles

• Amino acids and proteins: Form the building blocks for new hair growth

A deficiency in these nutrients – whether due to an unbalanced diet, diets, malabsorption disorders or increased need – leads to reduced hair production and can prevent the regrowth of lost hair.

Aging and hormonal changes

As we age, cell renewal slows down throughout the body – including in the hair follicles. The growth phase naturally shortens, while at the same time the production of melanin (the pigment in hair) decreases.

Hormonal changes, such as those that occur during menopause, after pregnancy, or due to thyroid disorders, can disrupt the balance of hormones responsible for healthy hair growth. Estrogen fluctuations, in particular, can lead to temporary or permanent hair loss in women.

First signs & diagnosis: Recognizing hair loss

Hair loss doesn't always happen suddenly – often it creeps up on you and isn't noticed until late. Here are typical warning signs to watch out for:

Recognizing early warning signs

The average person loses between 50 and 100 hairs a day – this is completely normal. However, if you notice the following signs, it could indicate a problem:

• Significantly more hair than usual in the brush, on the pillow, or in the shower.

• Visible thinning in certain areas, especially at the crown or temples.

• Receding hairline or widening center part

• Changes in hair structure: The hair becomes thinner, more brittle, or loses its natural shine.

• Scalp problems such as persistent itching, redness, dandruff or a feeling of tightness

The "pull test" is particularly revealing: Gently pull on a small section of hair (about 60 hairs). If more than 6 hairs come loose, this indicates active hair loss.

When to go to the doctor.

If hair loss persists for several weeks, you should consult a dermatologist or trichologist (hair specialist). Early diagnosis is crucial, as many forms of hair loss are more treatable in their early stages. The doctor will:

• Conduct a detailed medical history (family history, medications, diet, lifestyle)

• Examine the scalp and hair structure, often with a special microscope (trichoscope).

• If necessary, order blood tests to rule out nutrient deficiencies, hormonal imbalances, or autoimmune diseases.

• In some cases, a small biopsy of the scalp may be taken.

Depending on the diagnosis, an individual treatment plan can then be created that addresses the specific cause of your hair loss.

Hair care routines & therapy options: Effective support for hair growth

The good news: You don't have to accept permanently thinning hair! Personalized care that supports both external and internal growth can help activate the follicles and stimulate the natural hair cycle.

Scalp care as a foundation

The health of your scalp is crucial for healthy hair growth. An optimal care routine includes:

• Specialized serums : The Tru Cosmetics' Hair Growth Serum contains a scientifically developed combination of tetrapeptides, caffeine, and botanical extracts such as ginseng and rosemary. These active ingredients stimulate microcirculation in the scalp, supplying the hair follicles with oxygen and nutrients. Unlike hormone-based products, it does not interfere with the hormonal balance but creates optimal conditions for natural hair growth.

• Regular scalp massages : A 5-minute daily massage stimulates blood circulation and improves the supply of nutrients to the hair roots. Studies show that regular scalp massages can improve hair thickness and increase the activity of the hair follicles.

• Cleansing without drying : Use mild, silicone-free shampoos that won't irritate or dry out your scalp. Tru Cosmetics products are specifically designed to maintain the scalp's natural microbiome.

Nutrient supply from within

Even the best external care cannot compensate for nutrient deficiencies. A holistic approach to nutrition is essential.

• Targeted nutritional supplementation : The Hair Boost Caps from Tru Cosmetics deliver a specially formulated complex of biotin, zinc, B vitamins, folic acid, and amino acids – all essential building blocks for keratin production and healthy hair growth. Unlike many mass-produced products, they contain highly bioavailable forms of these nutrients for optimal absorption.

• Balanced diet : Supplement your supplementation with a nutrient-rich diet. Foods such as salmon (omega-3 fatty acids), eggs (biotin and protein), nuts (zinc and healthy fats), and green leafy vegetables (iron and vitamins) are particularly valuable.

Avoiding harmful influences

Alongside active care, it is important to avoid further damage:

• Gentle hair care : Reduce heat styling and chemical treatments to a minimum. Use heat protectant products and let your hair air dry whenever possible.

• Silicone-free products : Silicones can seal the scalp and clog pores. Tru Cosmetics products consciously avoid these ingredients and instead rely on natural care ingredients that allow the scalp to breathe.

• Gentle styling : Avoid tight hairstyles that pull on the hair roots. Use soft hair ties and loose styles that don't put stress on the follicles.

Medical options

In cases of advanced hair loss, additional medical treatments may be beneficial:

• PRP therapy (platelet-rich plasma) : In this treatment, blood is drawn from the patient, the plasma containing growth factors is isolated, and injected into the scalp. These growth factors can reactivate the hair follicles.

• Low-level laser therapy : Special lasers stimulate blood circulation and metabolism in the hair follicles, which can stimulate growth.

Tru Cosmetics consciously uses natural, hormone-free active ingredients to offer you premium skincare – made in Germany and developed with great attention to detail. The products combine scientific findings with natural aesthetics, so you can feel completely comfortable.

Everyday tips for the sustainable prevention of hair loss

In addition to targeted care and therapy, there are simple measures you can integrate into your daily routine to prevent hair loss in the long term:

Healthy nutrition as a basis

Your diet plays a crucial role in the health of your hair:

• Integrate protein-rich foods like legumes, lean meat, and fish into your diet – proteins are the building blocks of your hair.

• Ensure you consume sufficient omega-3 fatty acids from flaxseeds, walnuts, and oily fish, which reduce inflammation and keep the scalp healthy.

• Iron-rich foods such as spinach and legumes support the transport of oxygen to the hair follicles.

• Antioxidant-rich berries and colorful vegetables protect hair follicles from oxidative stress.

Stress management in everyday life

Chronic stress increases cortisol levels in the body, which can directly affect hair growth:

• Integrate regular relaxation techniques such as deep breathing, progressive muscle relaxation, or meditation into your daily routine.

• Ensure you get enough sleep (7-8 hours), as important regeneration processes take place during sleep.

• Regular exercise helps reduce stress hormones and also promotes blood circulation in the scalp.

Protection from environmental influences

Environmental factors can put additional strain on your hair and scalp:

• Protect your hair from intense UV radiation with hats or special UV protection products for hair.

• Reduce your exposure to pollution and harmful substances by thoroughly but gently cleansing your hair in the evening.

• Use special protective products when swimming in chlorinated or salt water, or rinse your hair thoroughly after swimming.

Gentle hair care in focus

Your daily hair care routine can significantly contribute to hair health:

• Don't wash your hair too often in order to preserve the natural oils of your scalp.

• Use lukewarm water instead of hot water to avoid irritating your scalp.

• Use a hairdryer on low heat and keep a distance of at least 15 cm from the scalp.

• Perform a regular "scalp check" to detect changes early.

Conclusion: Why lost hair doesn't grow back – and what you can do about it

If you notice that lost hairs aren't growing back, it's a warning signal from your body – but also an opportunity for targeted intervention. By identifying the causes and acting early, you can actively combat hair loss.

The combination of high-quality external care with the Hair Growth Serum from Tru Cosmetics and inner support through the Hair Boost Caps offers a holistic approach that can reactivate hair follicles. Unlike many conventional products, Tru Cosmetics relies on natural, hormone-free active ingredients, manufactured in Germany under the highest standards Quality standards are met.

The preventative approach is particularly valuable: the earlier you begin targeted care, the higher the chances that your hair follicles can resume their full function. As soon as you notice the first signs, you should take action – because inactive hair follicles are significantly more difficult to reactivate than those whose function is only temporarily impaired.

Stop waiting and start treating your hair to premium care now – without hormones and without compromising on quality. Because what you put in your bathroom should bring a smile to your face every day. Discover the hormone-free hair care products from Tru Cosmetics and give your hair the chance to bloom in all its glory again.