You are right. The water in middle-east is desalinated which causes hairloss.
Would advise you to use R.O. water for head wash.
Let me tell you about hairfall. In layman's language, hairfall can be divided into 2 types - temporary hairfall and permanent (which is called as 'Hairloss' rather). In temporary hairfall, hair grows back again from the same hair root, but in case of permanent hairloss, may be because of formation of DHT (Di- Hydro -Testosterone) around hair root it gets choked up, subsequently affects the blood supply to the hair and thus hair root is lost forever. (There are different pattern and types of hairloss, because of different reasons like Alopecia Areata, Telogen Effluvium, Scarring Alopecia, Traction Alopecia, etc.)
Causes of hairloss:
Many factors are responsible formation of this DHT or male/ female pattern baldness - hereditary, post-illness/ ailment, post-delivery, post- chemotherapy, nutritional deficiencies, hormonal imbalance, insufficient sleep, sudden loss of weight, stress/ tensions/ excessive anger, use of bore water, any other underlying diseases, etc.
Need to rule out any causative factor or underlying medical condition.
Take diet rich in protein like non-veg., eggs (it's loaded with essential nutrients such as proteins, Vitamin B12, iron, zinc and Omega 6 fatty acids in large amounts and biotin) , different pulses & legumes, sprouts, nuts (sp. walnuts and almonds); iron-rich food like green vegetables, dates, carrots, prunes, green peas; also oats, shrimp, take flaxseeds, sunflower seeds, sesame seeds, green tea, soyabean, fruits, salads, etc.
Take low-fat dairy products (they also contain whey and casein, two high-quality protein sources)
Take proper 6-9hrs of sound sleep.
Give up the habit of smoking and excessive alcohol intake.
Avoid junk food and any kind of beverages (tea, coffee, aerated drinks, cold drinks, etc.)
Avoid canned/ tinned food or food that contains preservatives (eat fresh ones).
Avoid use of hard water to wash the head rather use boiled water for head wash.
Avoid use of harsh hair colour, hair treatment like rebonding, straightening, perming, etc.
Avoid vigorous exercises or any supplements provided by the gym!
Cover your head with scarf or cap while stepping outside.
Use Rose wood/ any wooden hair comb to brush your hair.
Regular exercising is also one of the important point, but should be done under some good, qualified yoga teacher or instructor for proper guidance; it also releases the stress/ tension in the mind and the body and keeps you FIT and YOUNG!!
Take homoeopathic Rx - Schwabe's Wiesbaden 200 & Alfalfa Tonic twice a day for 1 month and revert.
Also, use Schwabe's Arnica shampoo and Hair Growth oil regularly as per the condition of your scalp (minimum 3 times a week). After shampooing, use Bakson's Arnica Hair conditioner as well after every head wash.
Apart from this, take Follihair tablets (multivitamin) - 1 tab. daily once for 1 month.
(N.B.: With the help of homoeopathic medicines, we can only prevent further progress of the hairloss, means it will get arrests in the present condition in case of progressive baldness. But, in case there are areas of baldness which has gone smooth and shiny, you will have to choose an option of Hair Transplant along with theses medications!).
Get your blood tested for (empty stomach) - CBC, S. Iron, S. Folic acid, S. Ferritin, S. Calcium, S. Vitamin D3, S. Vitamin B12. If there is any family history of Thyroid dysfunction, get Thyroid function test done as well.