Hair Blogs


Rogaine Foam for AGA

1/2 cap Twice Daily for Men; Once for Women

Minoxidil is the only FDA approved topical solution for treating androgenetic alopecia (AGA). In 1988 it was first approved for men and in 1992 for women. The early formulations contained propylene glycol which had a tendency to cause irritation. Although the propylene glycol based formulations are still widely available, the introduction of minoxidil foam as "Rogaine foam" in 2006 had many advantages as it was less irritating. Rogaine foam was approved for men in 2006 as a twice daily application of 1/2 cap each time. The FDA approved Rogaine foam in 2014 for women at a dose of 1/2 cap once daily.


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Hair loss

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Hair loss


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Minoxidil

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Minoxidil


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Hair loss

I posted an answer to a new question on Realself.com

Hair loss


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Hair loss

I posted an answer to a new question on Realself.com

Hair loss


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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TE with weak hair

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TE with weak hair


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Frontal Fibrosing Alopecia (FFA)

Other than the Front, What is Affected?

Frontal fibrosing alopecia (FFA) is a scarring alopecia that affect women to a much greater extent than men. In FFA the frontal scalp is typically affected. However, the name does not capture the full extent of the hair loss. Patients with FFA frequently develop hair loss around the back of the scalp (behind the ears and very back above the neck), and frequently in the middle of the scalp as well. Eyebrows, eyelashes, arm hair, leg hair, underarm hair and pubic hair are frequently affected.


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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What doses of the B vitamins are needed?

The role of the B vitamins is not entirely clear. For some vitamins, such as biotin and vitamin B12, it seems that unless one is truly deficient in the particular vitamin, supplementation is not going to help.

Whether that is true for all the B vitamins is not clear. It certainly may be that some B vitamins are beneficial for hair growth even if the patient has normal levels. In patients with excessive shedding (telogen effluvium) in which an underlying cause can not be found, I often recommend 50-100 mg of vitamin B5 (pantothenic acid) and the same dose of B6.

Administration of vitamin B5 and vitamin B6 appear to have some benefits in human and animal studies.


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Lysine and Hair Loss

When Can Lysine be Helpful?

L-lysine is an amino acid, which are the building blocks of proteins. Lysine is one of the more difficult amino acids to get in foods but it is found in meat, fish and eggs.

L-lysine has an important role in iron and zinc absorption. In 2002 D.H. Rushton demonstrated the benefits of l-lysine to increase iron and zinc levels and to reduce hair shedding.

Ruston reported 14 women who were deficient in zinc and showed that 1000-1500 mg of Lysine daily led to an increase in zinc levels from 9.7 to 14.6 umol/L - even without these women consuming zinc pills.

Similarly with iron, Rushton showed that 100 mg per day of iron in 7 women with chronic telogen effluvium did not change ferritin levels at all. However, when combined with L-lysine (again at 1000-1500 mg per day), ferritin levels increased from 27.4 to 58.6 ug/L. This was associated with a decrease in the proportion of hairs in the telogen phase from 19.5 to 11.3.

L-lysine is an important amino acid and I often recommend it for my patients with chronic shedding abnormalities and those with deficiencies of iron and zinc that don't respond to routine supplementation. If I do recommend L-lysine, the dosing is typically 500 mg twice daily, and rarely three times daily for short periods.

Reference

DH Rushton. Nutritional factors in hair loss. Clin Exp Dermatol 2002

 


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Thinning in crown

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Thinning in crown


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Thyroid hair loss

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Thyroid hair loss


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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Biotin and Hair Loss

Why Does the World Love Biotin So Much?

Biotin is a well-known and popular supplement for treating hair loss. Let's face it - the world loves biotin. However, true deficiencies in biotin are rare given the ability of bacteria in the gastrointestinal system to produce biotin. Nevertheless, many individuals and physicians turn to biotin in the search for treatment options. 

Soleymani and colleagues from New York University School of Medicine set out to critically examine the evidence for biotin use for treating hair loss. Their findings point out that there are no randomized trials to support the use of biotin in treating hair loss and that the public’s interest in biotin over the past decades is not supported by medical evidence. 

There is really no evidence to support routine biotin supplementation for individual’s with hair loss. Exceptions do exist, of course, and true biotin deficiency may be considered in individuals who are elderly, pregnant, using anticonvulsants or chronically using alcohol. 

Reference

Soleymani T et al. J Drugs Dermatol. 2017 May 1;16(5):496-500


Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Vancouver office at 604.283.9299
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