yikes, i hate to say this but hey, I TOLD YOU SO !
you made all the wrong decisions from the get go , this is like brewing of the perfect hair disaster ! a thick hairline is like asking for troubles (well now you know) , who advised you to go on dutasteride? a lot of people have massive shed because of dutas , as if that was not enough, you decided to add st john’s wort, it is well known that almost all anti depressants are hair killers and to top if off, you are using hair dyes which I am not surprised it causes more damage than anything else, don’t listen to me, see for yourself, its all over the internet, you cant pay me enough to put that stuff on my head, eg:
http://www.squidoo.com/hairdyedangers#module63166732
(PPD) One of the main chemicals in most hair dyes has been banned in several European countries, and hair dye chemicals have been shown to have a variety of harmful effects in scientific experiments. Use of hair dye has been linked to allergic reactions, respiratory disorders and even cancer.,
Allergic and Skin Reactions
PPD is a skin sensitizer, meaning that it can stimulate the immune system to cause a variety of allergic reactions. The skin may become red, blister, itch and burn on exposure of PPD. Allergic reactions may also cause breathing difficulties and can even be fatal.
Cancer
Laboratory experiments have shown that PPD damages the DNA of human cells. Accumulated DNA damage leads to cancer. However, it is not conclusive whether the exposure to PPD from hair dyes is enough to cause cancer in women who dye their hair, although hair stylists who color hair at work do have higher cancer levels (see below).
Asthma
Breathing in PPD fumes can cause the airways to narrow, making breathing difficult. This can be a transient reaction, or can cause long-term asthma.
Severe effects from drinking PPD
Severe lung problems and deaths have been reported after accidental ingestion of PPD. Hair dyes should always be kept out children’s reach to prevent accidents.
The Other Chemicals in Hair Dyes and Associated Risks
Resorcinol
Resorcinol receives a rating of 8 (out of 10) for hazard at the Cosmetics Safety Database. It is classified by the European Union as harmful, irritant to eyes and skin and dangerous for the environment.
It has been shown to disrupt hormonal function in rats, causing hypothyroidism (thyroid hormone deficiency), but the levels necessary were far higher than those in hair dyes (Welsch, 2008). However, autism may be caused by babies experiencing hypothyroidism while still in the womb (Roman, 2007), and there have been cases of pregnant women losing their babies after taking resorcinol by mouth (Duran et al, 2004). Resorcinol is also a skin sensitiser (Basketter et al, 2007), although it is much less potent than PPD.
Ammonia
Ammonia is irritant to the skin, eyes and respiratory system, and can cause asthma and breathing difficulties. However, it is much less toxic than PPD, and only receives a rating of 3 out of 10 for toxicity at the Cosmetics Safety Database.
Persulfates
Sodium, potassium and ammonium sulfates are present in hair dyes and bleaches, and are used in concentrations of up to 60%. However, concentrations of only 17.5% have been shown to irritate skin, and persulfates are also toxic when the fumes are inhaled, causing asthma and lung damage (Pang and Fiume, 2001). However, the Cosmetic Ingredient Review Expert Panel has concluded that they are safe for occasional use, provided that the skin is rinsed well after.
Hydrogen Peroxide
Hydrogen peroxide is used in hair bleaches. It is corrosive, and has been banned from cosmetic use in Japan and restricted in Canada. Animal studies have shown it has toxic effects on the nervous system, respiratory and digestive systems at low doses (1974). Other studies on animals have also shown that hydrogen peroxide can damage DNA, possibly leading to cancer.
Lead acetate
This is present in some hair coloring products used for gradual darkening, and is another potentially toxic chemical.Lead has well-known damaging effects on the brain and nervous system.
4-ABP
This has been linked to development of cancer.