The most effective hair loss shampoo, according to a few studies, is one that contains caffeine. In test tube studies, the stimulant has been shown to stimulate hair growth and protect against testosterone-induced follicle growth suppression. Surprisingly, the researchers do not mention dihydrotestosterone in the study.
Dihydrotestosterone or DHT is another male hormone, a derivative of testosterone. It is formed within the body when an enzyme, 5-alpha reductase interactions with testosterone. DHT is the hormone most often blamed for male pattern baldness and other types of alopecia.
DHT is known to shrink the hair-producing follicles. At first, the follicles produce thinner hairs that are lighter in color, but ever, they may stop producing entirely.
There are compounds known to protect the follicles from DHT and others that inhibit the activity of 5-alpha reductase. But, shampoos have never been the preferred method of delivery for these compounds. One of the compounds that has proven effectiveness for stimulating re-growth and reducing hair loss is Minoxidil. Minoxidil is applied directly to the scalp, but not rinsed out. It is left to dry and is provided to be applied to a dry scalp.
It should be obvious that something rinsed off of the head is less likely to penetrate through the skin and
into the follicles. So, there is a question of whether there is a most effective hair loss shampoo. It's doubtable that any of them are very effective.
One study has demonstrated that the addition of caffeine to shampoos is an effective method of delivery. But, no adequate dosage has been determined. Further research is needed to determine the efficiency of the shampoos for the treatment of androgenetic alopecia; male pattern baldness.
There are claims that the most effective hairloss shampoo is one containing protein, but there is no scientific evidence to support those claims. Although the hairs are long protein strands, they are not living cells. They can not absorb protein. The most that could happen is that the shampoos or conditioners could reduce frizzing, which would make the hair look thicker.
Pharmaceutical companies have spent millions of dollars looking for an effective way to treat hair growth disorders, such as male pattern baldness and female alopecia. They are willing to spend the money, because more than half of all men suffer from some degree of male pattern baldness by the time they reach the age of 50.
One would think that after spending that much money, a pharmaceutical company would know something about the most effective hair loss shampoo. But, nothing is recommended. Doctors primarily recommend gentle shampoos. Sulfur-based, rather than detergent-based, cleansers may be recommended to create a better pH balance.
Some doctors recommend reducing the number of times that a person shampoos. Shampooing only two or three times per week, rather than once a day, may be beneficial.
That's another reason that shampoos are not likely to be recommended. If you only used them two or three times per week, it could not protect the hair follicles on a daily basis, even if it was the most effective hairloss shampoo.