Melatonin and HLK are not the same. Melatonin is a natural hormone that can support the hair growth cycle, while HLK is a special complex added to strengthen hair and improve scalp health.

Significant hair loss may be caused by stress, hormonal changes, nutritional deficiencies, or genetic factors, and it is important to identify the underlying cause. Treatments such as topical minoxidil or prescription medicines like finasteride may help promote regrowth, depending on the cause. Eating a balanced diet with sufficient protein, iron, and vitamins and maintaining good scalp hygiene can support healthier hair growth. It is advisable to consult a doctor or dermatologist for proper evaluation and a suitable treatment plan.

You should consult a doctor, preferably a dermatologist or trichologist, for a detailed scalp examination to assess common causes such as genetics (androgenetic alopecia), severe stress, hormonal changes, or nutritional deficiencies. Blood tests, such as a complete blood count, thyroid function, iron, ferritin, vitamin D, and vitamin B12, may be advised to detect reversible causes. In the meantime, follow gentle hair care practices, use a sulphate-free shampoo, and avoid tight hairstyles or excessive heat and chemical treatments. Depending on the cause, treatment may include adequate nutrition and medications such as topical minoxidil or oral finasteride, if advised by your doctor.

At 27 years of age, early greying is usually due to genetics, but it may sometimes be linked to vitamin B12 deficiency, iron deficiency, thyroid imbalance or stress. It is not usually possible to fully stop or reverse greying, but you can slow its progression by eating a balanced diet rich in protein, iron, vitamin B12 and antioxidants. It is also advisable to have basic blood tests done to rule out deficiencies or thyroid issues. Avoiding smoking and managing stress can also help support overall hair health.

Topical minoxidil can help improve hair growth and reduce hair fall, particularly in cases of pattern hair loss where the follicles are still active. It works best when used consistently for several months, with results usually seen after 3 to 6 months. Some people may experience increased shedding at the start, but this is temporary and usually settles with continued use. It may be less effective if hair fall is due to nutritional deficiencies or underlying medical conditions.

Severe hair loss with skin darkening may be caused by hormonal imbalances such as polycystic ovary syndrome, thyroid disorders, or adrenal gland conditions (like Addison's disease). It may also result from nutritional deficiencies such as low iron, vitamin B12, or biotin, or from conditions like insulin resistance. Chronic stress, medications, or underlying illnesses may also contribute to these symptoms. It is advisable to consult a doctor for proper evaluation and blood tests to determine the exact cause and begin appropriate treatment.